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authorMatthew Draper <matthew@trebex.net>2017-07-02 02:15:17 +0930
committerMatthew Draper <matthew@trebex.net>2017-07-02 02:15:17 +0930
commit87b3e226d65ac1ed371620bfdcd2f950c87cfece (patch)
tree33d690f194f243a3fb63e69f8393ff46cc396249 /activerecord
parent3420a14590c0e6915d8b6c242887f74adb4120f9 (diff)
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Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"
This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
Diffstat (limited to 'activerecord')
-rw-r--r--activerecord/Rakefile1
-rw-r--r--activerecord/activerecord.gemspec1
-rwxr-xr-xactiverecord/bin/test1
-rw-r--r--activerecord/examples/performance.rb1
-rw-r--r--activerecord/examples/simple.rb1
-rw-r--r--activerecord/lib/active_record.rb1
-rw-r--r--activerecord/lib/active_record/aggregations.rb1
-rw-r--r--activerecord/lib/active_record/association_relation.rb1
-rw-r--r--activerecord/lib/active_record/associations.rb1
-rw-r--r--activerecord/lib/active_record/associations/alias_tracker.rb1
-rw-r--r--activerecord/lib/active_record/associations/association.rb1
-rw-r--r--activerecord/lib/active_record/associations/association_scope.rb1
-rw-r--r--activerecord/lib/active_record/associations/belongs_to_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/association.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/belongs_to.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/collection_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/has_many.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/has_one.rb1
-rw-r--r--activerecord/lib/active_record/associations/builder/singular_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/collection_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/collection_proxy.rb1
-rw-r--r--activerecord/lib/active_record/associations/foreign_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/has_many_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/has_many_through_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/has_one_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/has_one_through_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/join_dependency.rb1
-rw-r--r--activerecord/lib/active_record/associations/join_dependency/join_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/join_dependency/join_base.rb1
-rw-r--r--activerecord/lib/active_record/associations/join_dependency/join_part.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/association.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/belongs_to.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/collection_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/has_many.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/has_many_through.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/has_one.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/has_one_through.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/singular_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/preloader/through_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/singular_association.rb1
-rw-r--r--activerecord/lib/active_record/associations/through_association.rb1
-rw-r--r--activerecord/lib/active_record/attribute.rb1
-rw-r--r--activerecord/lib/active_record/attribute/user_provided_default.rb1
-rw-r--r--activerecord/lib/active_record/attribute_assignment.rb1
-rw-r--r--activerecord/lib/active_record/attribute_decorators.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/before_type_cast.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/primary_key.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/query.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/read.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/serialization.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods/write.rb1
-rw-r--r--activerecord/lib/active_record/attribute_mutation_tracker.rb1
-rw-r--r--activerecord/lib/active_record/attribute_set.rb1
-rw-r--r--activerecord/lib/active_record/attribute_set/builder.rb1
-rw-r--r--activerecord/lib/active_record/attribute_set/yaml_encoder.rb1
-rw-r--r--activerecord/lib/active_record/attributes.rb1
-rw-r--r--activerecord/lib/active_record/autosave_association.rb1
-rw-r--r--activerecord/lib/active_record/base.rb1
-rw-r--r--activerecord/lib/active_record/callbacks.rb1
-rw-r--r--activerecord/lib/active_record/coders/json.rb1
-rw-r--r--activerecord/lib/active_record/coders/yaml_column.rb1
-rw-r--r--activerecord/lib/active_record/collection_cache_key.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/quoting.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/transaction.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_adapter.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/column.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/connection_specification.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/column.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/explain_pretty_printer.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/quoting.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/column.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/explain_pretty_printer.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/bit_varying.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/inet.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/legacy_point.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/oid.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/utils.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/schema_cache.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3/explain_pretty_printer.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3/schema_creation.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3/schema_dumper.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb1
-rw-r--r--activerecord/lib/active_record/connection_adapters/statement_pool.rb1
-rw-r--r--activerecord/lib/active_record/connection_handling.rb1
-rw-r--r--activerecord/lib/active_record/core.rb1
-rw-r--r--activerecord/lib/active_record/counter_cache.rb1
-rw-r--r--activerecord/lib/active_record/define_callbacks.rb1
-rw-r--r--activerecord/lib/active_record/dynamic_matchers.rb1
-rw-r--r--activerecord/lib/active_record/enum.rb1
-rw-r--r--activerecord/lib/active_record/errors.rb1
-rw-r--r--activerecord/lib/active_record/explain.rb1
-rw-r--r--activerecord/lib/active_record/explain_registry.rb1
-rw-r--r--activerecord/lib/active_record/explain_subscriber.rb1
-rw-r--r--activerecord/lib/active_record/fixture_set/file.rb1
-rw-r--r--activerecord/lib/active_record/fixtures.rb1
-rw-r--r--activerecord/lib/active_record/gem_version.rb1
-rw-r--r--activerecord/lib/active_record/inheritance.rb1
-rw-r--r--activerecord/lib/active_record/integration.rb1
-rw-r--r--activerecord/lib/active_record/internal_metadata.rb1
-rw-r--r--activerecord/lib/active_record/legacy_yaml_adapter.rb1
-rw-r--r--activerecord/lib/active_record/locking/optimistic.rb1
-rw-r--r--activerecord/lib/active_record/locking/pessimistic.rb1
-rw-r--r--activerecord/lib/active_record/log_subscriber.rb1
-rw-r--r--activerecord/lib/active_record/migration.rb1
-rw-r--r--activerecord/lib/active_record/migration/command_recorder.rb1
-rw-r--r--activerecord/lib/active_record/migration/compatibility.rb1
-rw-r--r--activerecord/lib/active_record/migration/join_table.rb1
-rw-r--r--activerecord/lib/active_record/model_schema.rb1
-rw-r--r--activerecord/lib/active_record/nested_attributes.rb1
-rw-r--r--activerecord/lib/active_record/no_touching.rb1
-rw-r--r--activerecord/lib/active_record/null_relation.rb1
-rw-r--r--activerecord/lib/active_record/persistence.rb1
-rw-r--r--activerecord/lib/active_record/query_cache.rb1
-rw-r--r--activerecord/lib/active_record/querying.rb1
-rw-r--r--activerecord/lib/active_record/railtie.rb1
-rw-r--r--activerecord/lib/active_record/railties/console_sandbox.rb1
-rw-r--r--activerecord/lib/active_record/railties/controller_runtime.rb1
-rw-r--r--activerecord/lib/active_record/railties/databases.rake1
-rw-r--r--activerecord/lib/active_record/railties/jdbcmysql_error.rb1
-rw-r--r--activerecord/lib/active_record/readonly_attributes.rb1
-rw-r--r--activerecord/lib/active_record/reflection.rb1
-rw-r--r--activerecord/lib/active_record/relation.rb1
-rw-r--r--activerecord/lib/active_record/relation/batches.rb1
-rw-r--r--activerecord/lib/active_record/relation/batches/batch_enumerator.rb1
-rw-r--r--activerecord/lib/active_record/relation/calculations.rb1
-rw-r--r--activerecord/lib/active_record/relation/delegation.rb1
-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb1
-rw-r--r--activerecord/lib/active_record/relation/from_clause.rb1
-rw-r--r--activerecord/lib/active_record/relation/merger.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/array_handler.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/base_handler.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/range_handler.rb1
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb1
-rw-r--r--activerecord/lib/active_record/relation/query_attribute.rb1
-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb1
-rw-r--r--activerecord/lib/active_record/relation/record_fetch_warning.rb1
-rw-r--r--activerecord/lib/active_record/relation/spawn_methods.rb1
-rw-r--r--activerecord/lib/active_record/relation/where_clause.rb1
-rw-r--r--activerecord/lib/active_record/relation/where_clause_factory.rb1
-rw-r--r--activerecord/lib/active_record/result.rb1
-rw-r--r--activerecord/lib/active_record/runtime_registry.rb1
-rw-r--r--activerecord/lib/active_record/sanitization.rb1
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-rw-r--r--activerecord/lib/active_record/schema_migration.rb1
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-rw-r--r--activerecord/lib/active_record/scoping/named.rb1
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-rw-r--r--activerecord/lib/active_record/serialization.rb1
-rw-r--r--activerecord/lib/active_record/statement_cache.rb1
-rw-r--r--activerecord/lib/active_record/store.rb1
-rw-r--r--activerecord/lib/active_record/suppressor.rb1
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-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb1
-rw-r--r--activerecord/lib/active_record/tasks/mysql_database_tasks.rb1
-rw-r--r--activerecord/lib/active_record/tasks/postgresql_database_tasks.rb1
-rw-r--r--activerecord/lib/active_record/tasks/sqlite_database_tasks.rb1
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-rw-r--r--activerecord/test/models/image.rb1
-rw-r--r--activerecord/test/models/interest.rb1
-rw-r--r--activerecord/test/models/invoice.rb1
-rw-r--r--activerecord/test/models/item.rb1
-rw-r--r--activerecord/test/models/job.rb1
-rw-r--r--activerecord/test/models/joke.rb1
-rw-r--r--activerecord/test/models/keyboard.rb1
-rw-r--r--activerecord/test/models/legacy_thing.rb1
-rw-r--r--activerecord/test/models/lesson.rb1
-rw-r--r--activerecord/test/models/line_item.rb1
-rw-r--r--activerecord/test/models/liquid.rb1
-rw-r--r--activerecord/test/models/man.rb1
-rw-r--r--activerecord/test/models/matey.rb1
-rw-r--r--activerecord/test/models/member.rb1
-rw-r--r--activerecord/test/models/member_detail.rb1
-rw-r--r--activerecord/test/models/member_type.rb1
-rw-r--r--activerecord/test/models/membership.rb1
-rw-r--r--activerecord/test/models/mentor.rb1
-rw-r--r--activerecord/test/models/minimalistic.rb1
-rw-r--r--activerecord/test/models/minivan.rb1
-rw-r--r--activerecord/test/models/mixed_case_monkey.rb1
-rw-r--r--activerecord/test/models/mocktail_designer.rb1
-rw-r--r--activerecord/test/models/molecule.rb1
-rw-r--r--activerecord/test/models/movie.rb1
-rw-r--r--activerecord/test/models/node.rb1
-rw-r--r--activerecord/test/models/non_primary_key.rb1
-rw-r--r--activerecord/test/models/notification.rb1
-rw-r--r--activerecord/test/models/numeric_data.rb1
-rw-r--r--activerecord/test/models/order.rb1
-rw-r--r--activerecord/test/models/organization.rb1
-rw-r--r--activerecord/test/models/other_dog.rb1
-rw-r--r--activerecord/test/models/owner.rb1
-rw-r--r--activerecord/test/models/parrot.rb1
-rw-r--r--activerecord/test/models/person.rb1
-rw-r--r--activerecord/test/models/personal_legacy_thing.rb1
-rw-r--r--activerecord/test/models/pet.rb1
-rw-r--r--activerecord/test/models/pet_treasure.rb1
-rw-r--r--activerecord/test/models/pirate.rb1
-rw-r--r--activerecord/test/models/possession.rb1
-rw-r--r--activerecord/test/models/post.rb1
-rw-r--r--activerecord/test/models/price_estimate.rb1
-rw-r--r--activerecord/test/models/professor.rb1
-rw-r--r--activerecord/test/models/project.rb1
-rw-r--r--activerecord/test/models/publisher.rb1
-rw-r--r--activerecord/test/models/publisher/article.rb1
-rw-r--r--activerecord/test/models/publisher/magazine.rb1
-rw-r--r--activerecord/test/models/randomly_named_c1.rb7
-rw-r--r--activerecord/test/models/rating.rb1
-rw-r--r--activerecord/test/models/reader.rb1
-rw-r--r--activerecord/test/models/recipe.rb1
-rw-r--r--activerecord/test/models/record.rb1
-rw-r--r--activerecord/test/models/reference.rb1
-rw-r--r--activerecord/test/models/reply.rb1
-rw-r--r--activerecord/test/models/ship.rb1
-rw-r--r--activerecord/test/models/ship_part.rb1
-rw-r--r--activerecord/test/models/shop.rb1
-rw-r--r--activerecord/test/models/shop_account.rb1
-rw-r--r--activerecord/test/models/speedometer.rb1
-rw-r--r--activerecord/test/models/sponsor.rb1
-rw-r--r--activerecord/test/models/string_key_object.rb1
-rw-r--r--activerecord/test/models/student.rb1
-rw-r--r--activerecord/test/models/subscriber.rb1
-rw-r--r--activerecord/test/models/subscription.rb1
-rw-r--r--activerecord/test/models/tag.rb1
-rw-r--r--activerecord/test/models/tagging.rb1
-rw-r--r--activerecord/test/models/task.rb1
-rw-r--r--activerecord/test/models/topic.rb1
-rw-r--r--activerecord/test/models/toy.rb1
-rw-r--r--activerecord/test/models/traffic_light.rb1
-rw-r--r--activerecord/test/models/treasure.rb1
-rw-r--r--activerecord/test/models/treaty.rb1
-rw-r--r--activerecord/test/models/tree.rb1
-rw-r--r--activerecord/test/models/tuning_peg.rb1
-rw-r--r--activerecord/test/models/tyre.rb1
-rw-r--r--activerecord/test/models/user.rb1
-rw-r--r--activerecord/test/models/uuid_child.rb1
-rw-r--r--activerecord/test/models/uuid_item.rb1
-rw-r--r--activerecord/test/models/uuid_parent.rb1
-rw-r--r--activerecord/test/models/vegetables.rb1
-rw-r--r--activerecord/test/models/vehicle.rb1
-rw-r--r--activerecord/test/models/vertex.rb1
-rw-r--r--activerecord/test/models/warehouse_thing.rb1
-rw-r--r--activerecord/test/models/wheel.rb1
-rw-r--r--activerecord/test/models/without_table.rb1
-rw-r--r--activerecord/test/models/zine.rb1
-rw-r--r--activerecord/test/schema/mysql2_specific_schema.rb1
-rw-r--r--activerecord/test/schema/oracle_specific_schema.rb1
-rw-r--r--activerecord/test/schema/postgresql_specific_schema.rb1
-rw-r--r--activerecord/test/schema/schema.rb1
-rw-r--r--activerecord/test/support/config.rb1
-rw-r--r--activerecord/test/support/connection.rb1
-rw-r--r--activerecord/test/support/connection_helper.rb1
-rw-r--r--activerecord/test/support/ddl_helper.rb1
-rw-r--r--activerecord/test/support/schema_dumping_helper.rb1
679 files changed, 12 insertions, 691 deletions
diff --git a/activerecord/Rakefile b/activerecord/Rakefile
index 4347071693..fe5f9d1071 100644
--- a/activerecord/Rakefile
+++ b/activerecord/Rakefile
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "rake/testtask"
require_relative "test/config"
diff --git a/activerecord/activerecord.gemspec b/activerecord/activerecord.gemspec
index b28cb0c2f7..a626a1f21b 100644
--- a/activerecord/activerecord.gemspec
+++ b/activerecord/activerecord.gemspec
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
version = File.read(File.expand_path("../RAILS_VERSION", __dir__)).strip
Gem::Specification.new do |s|
diff --git a/activerecord/bin/test b/activerecord/bin/test
index 83c192531e..ab69f4f603 100755
--- a/activerecord/bin/test
+++ b/activerecord/bin/test
@@ -1,5 +1,4 @@
#!/usr/bin/env ruby
-# frozen_string_literal: true
COMPONENT_ROOT = File.expand_path("..", __dir__)
require_relative "../../tools/test"
diff --git a/activerecord/examples/performance.rb b/activerecord/examples/performance.rb
index 74e5ffd976..3257dd4ad7 100644
--- a/activerecord/examples/performance.rb
+++ b/activerecord/examples/performance.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record"
require "benchmark/ips"
diff --git a/activerecord/examples/simple.rb b/activerecord/examples/simple.rb
index 6b9bc781d1..c3648fee48 100644
--- a/activerecord/examples/simple.rb
+++ b/activerecord/examples/simple.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record"
class Person < ActiveRecord::Base
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb
index 11300da52a..29f49c6195 100644
--- a/activerecord/lib/active_record.rb
+++ b/activerecord/lib/active_record.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
#--
# Copyright (c) 2004-2017 David Heinemeier Hansson
#
diff --git a/activerecord/lib/active_record/aggregations.rb b/activerecord/lib/active_record/aggregations.rb
index e0caad5381..10cbd5429c 100644
--- a/activerecord/lib/active_record/aggregations.rb
+++ b/activerecord/lib/active_record/aggregations.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# See ActiveRecord::Aggregations::ClassMethods for documentation
module Aggregations
diff --git a/activerecord/lib/active_record/association_relation.rb b/activerecord/lib/active_record/association_relation.rb
index a79112cb3b..de2d03cd0b 100644
--- a/activerecord/lib/active_record/association_relation.rb
+++ b/activerecord/lib/active_record/association_relation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class AssociationRelation < Relation
def initialize(klass, table, predicate_builder, association)
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index 13db82b2aa..f05a122544 100644
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/enumerable"
require "active_support/core_ext/string/conversions"
require "active_support/core_ext/module/remove_method"
diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb
index eb81ba5ff6..104de4f69d 100644
--- a/activerecord/lib/active_record/associations/alias_tracker.rb
+++ b/activerecord/lib/active_record/associations/alias_tracker.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/string/conversions"
module ActiveRecord
diff --git a/activerecord/lib/active_record/associations/association.rb b/activerecord/lib/active_record/associations/association.rb
index 0fca4467f9..1138ae3462 100644
--- a/activerecord/lib/active_record/associations/association.rb
+++ b/activerecord/lib/active_record/associations/association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/array/wrap"
module ActiveRecord
diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb
index 900ebda2bb..6ef225b725 100644
--- a/activerecord/lib/active_record/associations/association_scope.rb
+++ b/activerecord/lib/active_record/associations/association_scope.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class AssociationScope #:nodoc:
diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb
index b8d3173dc7..0e61dbfb00 100644
--- a/activerecord/lib/active_record/associations/belongs_to_association.rb
+++ b/activerecord/lib/active_record/associations/belongs_to_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Belongs To Association
module Associations
diff --git a/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb b/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb
index 15aae53e80..b710cf6bdb 100644
--- a/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb
+++ b/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Belongs To Polymorphic Association
module Associations
diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb
index df8d77a5d1..d0534056d9 100644
--- a/activerecord/lib/active_record/associations/builder/association.rb
+++ b/activerecord/lib/active_record/associations/builder/association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
# This is the parent Association class which defines the variables
# used by all associations.
#
diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb
index 7c2cc61ecd..2b9dd8aae8 100644
--- a/activerecord/lib/active_record/associations/builder/belongs_to.rb
+++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord::Associations::Builder # :nodoc:
class BelongsTo < SingularAssociation #:nodoc:
def self.macro
diff --git a/activerecord/lib/active_record/associations/builder/collection_association.rb b/activerecord/lib/active_record/associations/builder/collection_association.rb
index f6e471feca..1fb8f76f2e 100644
--- a/activerecord/lib/active_record/associations/builder/collection_association.rb
+++ b/activerecord/lib/active_record/associations/builder/collection_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/associations"
module ActiveRecord::Associations::Builder # :nodoc:
diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
index c3e62c1a3d..6b71826431 100644
--- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
+++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord::Associations::Builder # :nodoc:
class HasAndBelongsToMany # :nodoc:
class JoinTableResolver # :nodoc:
diff --git a/activerecord/lib/active_record/associations/builder/has_many.rb b/activerecord/lib/active_record/associations/builder/has_many.rb
index 3e83fad619..7864d4c536 100644
--- a/activerecord/lib/active_record/associations/builder/has_many.rb
+++ b/activerecord/lib/active_record/associations/builder/has_many.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord::Associations::Builder # :nodoc:
class HasMany < CollectionAssociation #:nodoc:
def self.macro
diff --git a/activerecord/lib/active_record/associations/builder/has_one.rb b/activerecord/lib/active_record/associations/builder/has_one.rb
index 66135bbc2d..4de846d12b 100644
--- a/activerecord/lib/active_record/associations/builder/has_one.rb
+++ b/activerecord/lib/active_record/associations/builder/has_one.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord::Associations::Builder # :nodoc:
class HasOne < SingularAssociation #:nodoc:
def self.macro
diff --git a/activerecord/lib/active_record/associations/builder/singular_association.rb b/activerecord/lib/active_record/associations/builder/singular_association.rb
index 3a154ba25f..7732b63af6 100644
--- a/activerecord/lib/active_record/associations/builder/singular_association.rb
+++ b/activerecord/lib/active_record/associations/builder/singular_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
# This class is inherited by the has_one and belongs_to association classes
module ActiveRecord::Associations::Builder # :nodoc:
diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb
index 8bed7121a8..a49fb155ee 100644
--- a/activerecord/lib/active_record/associations/collection_association.rb
+++ b/activerecord/lib/active_record/associations/collection_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
# = Active Record Association Collection
diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb
index 6ccdaebbe3..d77fcaf668 100644
--- a/activerecord/lib/active_record/associations/collection_proxy.rb
+++ b/activerecord/lib/active_record/associations/collection_proxy.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
# Association proxies in Active Record are middlemen between the object that
diff --git a/activerecord/lib/active_record/associations/foreign_association.rb b/activerecord/lib/active_record/associations/foreign_association.rb
index 1fb6ff7bff..3ceec0ee46 100644
--- a/activerecord/lib/active_record/associations/foreign_association.rb
+++ b/activerecord/lib/active_record/associations/foreign_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord::Associations
module ForeignAssociation # :nodoc:
def foreign_key_present?
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb
index 4e0c89791e..10ca0e47ff 100644
--- a/activerecord/lib/active_record/associations/has_many_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Has Many Association
module Associations
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb
index c4ed91aeca..2fd20b4368 100644
--- a/activerecord/lib/active_record/associations/has_many_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_through_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Has Many Through Association
module Associations
diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb
index a78c1b1d32..8458253ff8 100644
--- a/activerecord/lib/active_record/associations/has_one_association.rb
+++ b/activerecord/lib/active_record/associations/has_one_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Has One Association
module Associations
diff --git a/activerecord/lib/active_record/associations/has_one_through_association.rb b/activerecord/lib/active_record/associations/has_one_through_association.rb
index 1e8b2244d9..1183bdf6f4 100644
--- a/activerecord/lib/active_record/associations/has_one_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_one_through_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Has One Through Association
module Associations
diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb
index 011bbaad5c..04cdcb6a7f 100644
--- a/activerecord/lib/active_record/associations/join_dependency.rb
+++ b/activerecord/lib/active_record/associations/join_dependency.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class JoinDependency # :nodoc:
diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb
index 5df23e92ca..005410d598 100644
--- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb
+++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/associations/join_dependency/join_part"
module ActiveRecord
diff --git a/activerecord/lib/active_record/associations/join_dependency/join_base.rb b/activerecord/lib/active_record/associations/join_dependency/join_base.rb
index aa02c5f056..fca20514d1 100644
--- a/activerecord/lib/active_record/associations/join_dependency/join_base.rb
+++ b/activerecord/lib/active_record/associations/join_dependency/join_base.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/associations/join_dependency/join_part"
module ActiveRecord
diff --git a/activerecord/lib/active_record/associations/join_dependency/join_part.rb b/activerecord/lib/active_record/associations/join_dependency/join_part.rb
index 0604333f30..80c9fde5d1 100644
--- a/activerecord/lib/active_record/associations/join_dependency/join_part.rb
+++ b/activerecord/lib/active_record/associations/join_dependency/join_part.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class JoinDependency # :nodoc:
diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb
index 130494f712..208d1b2670 100644
--- a/activerecord/lib/active_record/associations/preloader.rb
+++ b/activerecord/lib/active_record/associations/preloader.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
# Implements the details of eager loading of Active Record associations.
diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb
index 6a8425c989..63ef3f2d8c 100644
--- a/activerecord/lib/active_record/associations/preloader/association.rb
+++ b/activerecord/lib/active_record/associations/preloader/association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/belongs_to.rb b/activerecord/lib/active_record/associations/preloader/belongs_to.rb
index ee7be18d15..c20145770f 100644
--- a/activerecord/lib/active_record/associations/preloader/belongs_to.rb
+++ b/activerecord/lib/active_record/associations/preloader/belongs_to.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/collection_association.rb b/activerecord/lib/active_record/associations/preloader/collection_association.rb
index 59c0bc4d8e..26690bf16d 100644
--- a/activerecord/lib/active_record/associations/preloader/collection_association.rb
+++ b/activerecord/lib/active_record/associations/preloader/collection_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/has_many.rb b/activerecord/lib/active_record/associations/preloader/has_many.rb
index 197f561b95..20df1cc19a 100644
--- a/activerecord/lib/active_record/associations/preloader/has_many.rb
+++ b/activerecord/lib/active_record/associations/preloader/has_many.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/has_many_through.rb b/activerecord/lib/active_record/associations/preloader/has_many_through.rb
index 3bd561c187..2029871f39 100644
--- a/activerecord/lib/active_record/associations/preloader/has_many_through.rb
+++ b/activerecord/lib/active_record/associations/preloader/has_many_through.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/has_one.rb b/activerecord/lib/active_record/associations/preloader/has_one.rb
index d6254d8c56..c4add621ca 100644
--- a/activerecord/lib/active_record/associations/preloader/has_one.rb
+++ b/activerecord/lib/active_record/associations/preloader/has_one.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/has_one_through.rb b/activerecord/lib/active_record/associations/preloader/has_one_through.rb
index 512ca82005..f063f85574 100644
--- a/activerecord/lib/active_record/associations/preloader/has_one_through.rb
+++ b/activerecord/lib/active_record/associations/preloader/has_one_through.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/singular_association.rb b/activerecord/lib/active_record/associations/preloader/singular_association.rb
index 5583c7d79c..5c5828262e 100644
--- a/activerecord/lib/active_record/associations/preloader/singular_association.rb
+++ b/activerecord/lib/active_record/associations/preloader/singular_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb
index 8e12afc695..34587fd3f5 100644
--- a/activerecord/lib/active_record/associations/preloader/through_association.rb
+++ b/activerecord/lib/active_record/associations/preloader/through_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class Preloader
diff --git a/activerecord/lib/active_record/associations/singular_association.rb b/activerecord/lib/active_record/associations/singular_association.rb
index 891caa44c3..f8bbe4c2ed 100644
--- a/activerecord/lib/active_record/associations/singular_association.rb
+++ b/activerecord/lib/active_record/associations/singular_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Associations
class SingularAssociation < Association #:nodoc:
diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb
index fd4c1a1e78..6b87993ba3 100644
--- a/activerecord/lib/active_record/associations/through_association.rb
+++ b/activerecord/lib/active_record/associations/through_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Through Association
module Associations
diff --git a/activerecord/lib/active_record/attribute.rb b/activerecord/lib/active_record/attribute.rb
index 7bb0280861..78662433eb 100644
--- a/activerecord/lib/active_record/attribute.rb
+++ b/activerecord/lib/active_record/attribute.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Attribute # :nodoc:
class << self
diff --git a/activerecord/lib/active_record/attribute/user_provided_default.rb b/activerecord/lib/active_record/attribute/user_provided_default.rb
index b2e9ff9d99..57f8bbed76 100644
--- a/activerecord/lib/active_record/attribute/user_provided_default.rb
+++ b/activerecord/lib/active_record/attribute/user_provided_default.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/attribute"
module ActiveRecord
diff --git a/activerecord/lib/active_record/attribute_assignment.rb b/activerecord/lib/active_record/attribute_assignment.rb
index 39ba094b6d..d0dfca0cac 100644
--- a/activerecord/lib/active_record/attribute_assignment.rb
+++ b/activerecord/lib/active_record/attribute_assignment.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_model/forbidden_attributes_protection"
module ActiveRecord
diff --git a/activerecord/lib/active_record/attribute_decorators.rb b/activerecord/lib/active_record/attribute_decorators.rb
index cb744d7b61..5bc8527745 100644
--- a/activerecord/lib/active_record/attribute_decorators.rb
+++ b/activerecord/lib/active_record/attribute_decorators.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeDecorators # :nodoc:
extend ActiveSupport::Concern
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index b718da8555..83c61fad19 100644
--- a/activerecord/lib/active_record/attribute_methods.rb
+++ b/activerecord/lib/active_record/attribute_methods.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/enumerable"
require "active_support/core_ext/string/filters"
require "mutex_m"
diff --git a/activerecord/lib/active_record/attribute_methods/before_type_cast.rb b/activerecord/lib/active_record/attribute_methods/before_type_cast.rb
index 7cdb85e6cf..115eb1ef3f 100644
--- a/activerecord/lib/active_record/attribute_methods/before_type_cast.rb
+++ b/activerecord/lib/active_record/attribute_methods/before_type_cast.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeMethods
# = Active Record Attribute Methods Before Type Cast
diff --git a/activerecord/lib/active_record/attribute_methods/primary_key.rb b/activerecord/lib/active_record/attribute_methods/primary_key.rb
index ca21eae7c1..b9b2acff37 100644
--- a/activerecord/lib/active_record/attribute_methods/primary_key.rb
+++ b/activerecord/lib/active_record/attribute_methods/primary_key.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "set"
module ActiveRecord
diff --git a/activerecord/lib/active_record/attribute_methods/query.rb b/activerecord/lib/active_record/attribute_methods/query.rb
index db86ef428e..10498f4322 100644
--- a/activerecord/lib/active_record/attribute_methods/query.rb
+++ b/activerecord/lib/active_record/attribute_methods/query.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeMethods
module Query
diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb
index 9d85af9424..fdc4bf6621 100644
--- a/activerecord/lib/active_record/attribute_methods/read.rb
+++ b/activerecord/lib/active_record/attribute_methods/read.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeMethods
module Read
diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb
index 0f267e3a34..4d9aff76cc 100644
--- a/activerecord/lib/active_record/attribute_methods/serialization.rb
+++ b/activerecord/lib/active_record/attribute_methods/serialization.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeMethods
module Serialization
diff --git a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb
index 0c5f0a2fd1..1f1efe8812 100644
--- a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb
+++ b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeMethods
module TimeZoneConversion
diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb
index 166cab7dd6..75c5a1a600 100644
--- a/activerecord/lib/active_record/attribute_methods/write.rb
+++ b/activerecord/lib/active_record/attribute_methods/write.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module AttributeMethods
module Write
diff --git a/activerecord/lib/active_record/attribute_mutation_tracker.rb b/activerecord/lib/active_record/attribute_mutation_tracker.rb
index 4b0d52742b..4de993e169 100644
--- a/activerecord/lib/active_record/attribute_mutation_tracker.rb
+++ b/activerecord/lib/active_record/attribute_mutation_tracker.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class AttributeMutationTracker # :nodoc:
OPTION_NOT_GIVEN = Object.new
diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb
index 76de68ac70..01f9d815d5 100644
--- a/activerecord/lib/active_record/attribute_set.rb
+++ b/activerecord/lib/active_record/attribute_set.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/attribute_set/builder"
require "active_record/attribute_set/yaml_encoder"
diff --git a/activerecord/lib/active_record/attribute_set/builder.rb b/activerecord/lib/active_record/attribute_set/builder.rb
index 9b75f185f7..2f624d32af 100644
--- a/activerecord/lib/active_record/attribute_set/builder.rb
+++ b/activerecord/lib/active_record/attribute_set/builder.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/attribute"
module ActiveRecord
diff --git a/activerecord/lib/active_record/attribute_set/yaml_encoder.rb b/activerecord/lib/active_record/attribute_set/yaml_encoder.rb
index f3d726f53c..899de14792 100644
--- a/activerecord/lib/active_record/attribute_set/yaml_encoder.rb
+++ b/activerecord/lib/active_record/attribute_set/yaml_encoder.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class AttributeSet
# Attempts to do more intelligent YAML dumping of an
diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb
index 0dceb417a5..475b9beec4 100644
--- a/activerecord/lib/active_record/attributes.rb
+++ b/activerecord/lib/active_record/attributes.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/attribute/user_provided_default"
module ActiveRecord
diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb
index 137e9673ab..70f0e2af8e 100644
--- a/activerecord/lib/active_record/autosave_association.rb
+++ b/activerecord/lib/active_record/autosave_association.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Autosave Association
#
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index 5229c82f3a..ac1aa2df45 100644
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "yaml"
require "active_support/benchmarkable"
require "active_support/dependencies"
diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb
index b25a8e4033..eb44887e18 100644
--- a/activerecord/lib/active_record/callbacks.rb
+++ b/activerecord/lib/active_record/callbacks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record \Callbacks
#
diff --git a/activerecord/lib/active_record/coders/json.rb b/activerecord/lib/active_record/coders/json.rb
index a7ad65fbf4..cb185a881e 100644
--- a/activerecord/lib/active_record/coders/json.rb
+++ b/activerecord/lib/active_record/coders/json.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Coders # :nodoc:
class JSON # :nodoc:
diff --git a/activerecord/lib/active_record/coders/yaml_column.rb b/activerecord/lib/active_record/coders/yaml_column.rb
index 7186252b8b..9c52a31b95 100644
--- a/activerecord/lib/active_record/coders/yaml_column.rb
+++ b/activerecord/lib/active_record/coders/yaml_column.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "yaml"
module ActiveRecord
diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb
index 7831aee3a4..8b937b6703 100644
--- a/activerecord/lib/active_record/collection_cache_key.rb
+++ b/activerecord/lib/active_record/collection_cache_key.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module CollectionCacheKey
def collection_cache_key(collection = all, timestamp_column = :updated_at) # :nodoc:
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index 71a2ac24ea..627b753f01 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "thread"
require "concurrent/map"
require "monitor"
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
index 6331b1546a..407e019326 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters # :nodoc:
module DatabaseLimits
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
index c8cf840181..879626b72a 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters # :nodoc:
module DatabaseStatements
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb
index 31d8f53a10..c352ddfc11 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters # :nodoc:
module QueryCache
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
index 631e5176bb..61233dcc51 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/big_decimal/conversions"
require "active_support/multibyte/chars"
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb b/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb
index b1b793828d..3a06f75292 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module Savepoints
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
index a3f9edbc6c..8865e7c703 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/string/strip"
module ActiveRecord
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
index 6dbf669993..a30fbe0e05 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters #:nodoc:
# Abstract representation of an index definition on a table. Instances of
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
index ef8038b5c3..34036d8a1d 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters # :nodoc:
# The goal of this module is to move Adapter specific column
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 4aed0e214f..6aed00584a 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/migration/join_table"
require "active_support/core_ext/string/access"
require "digest"
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
index 013cf5bfb6..19b7821494 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
class TransactionState
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index a7d8a80224..9a085df934 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/type"
require "active_record/connection_adapters/determine_if_preparable_visitor"
require "active_record/connection_adapters/schema_cache"
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index d49fa7ed24..062fede1ce 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/connection_adapters/abstract_adapter"
require "active_record/connection_adapters/statement_pool"
require "active_record/connection_adapters/mysql/column"
diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb
index 34eca70253..61cd7ae4cc 100644
--- a/activerecord/lib/active_record/connection_adapters/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/column.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# :stopdoc:
module ConnectionAdapters
diff --git a/activerecord/lib/active_record/connection_adapters/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/connection_specification.rb
index de54787458..3e4ea28f63 100644
--- a/activerecord/lib/active_record/connection_adapters/connection_specification.rb
+++ b/activerecord/lib/active_record/connection_adapters/connection_specification.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "uri"
module ActiveRecord
diff --git a/activerecord/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb b/activerecord/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb
index e57147221f..0fdc185c45 100644
--- a/activerecord/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb
+++ b/activerecord/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module DetermineIfPreparableVisitor
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/column.rb b/activerecord/lib/active_record/connection_adapters/mysql/column.rb
index 8bdc2a1622..c9ad47c035 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/column.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb
index dcbb6cfa7a..bda482a00f 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/explain_pretty_printer.rb b/activerecord/lib/active_record/connection_adapters/mysql/explain_pretty_printer.rb
index f174ba5b0e..9691060cd3 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/explain_pretty_printer.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/explain_pretty_printer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb b/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb
index 9fcf1e0a89..d4f5906b33 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb
index a890b54b5e..eea4984680 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb
index b62b857bb7..6d88c14d50 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb
index 05f12ef05b..eff96e329f 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb
index 470e24a8e7..a01fbba201 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb b/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb
index aa4d98e06b..9ad6a6c0d0 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module MySQL
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
index 350a99a2e4..af55cfe2f6 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/connection_adapters/abstract_mysql_adapter"
require "active_record/connection_adapters/mysql/database_statements"
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb
index 36382b6d57..3ad1911a28 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
# PostgreSQL-specific extensions to column definitions in a table.
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb
index 659b860cce..ebf1715ed0 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/explain_pretty_printer.rb b/activerecord/lib/active_record/connection_adapters/postgresql/explain_pretty_printer.rb
index 21d0b4a0d2..99f3a5bbdf 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/explain_pretty_printer.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/explain_pretty_printer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
index ea07b48430..4098250f3e 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/connection_adapters/postgresql/oid/array"
require "active_record/connection_adapters/postgresql/oid/bit"
require "active_record/connection_adapters/postgresql/oid/bit_varying"
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb
index fd629012ec..a73a8c1726 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb
index 70e84d85c2..0a505f46a7 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit_varying.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit_varying.rb
index b4ea3b4edd..4c21097d48 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit_varying.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit_varying.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb
index 4902a64330..702fa8175c 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb
index 2007665ec0..5225609e37 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "ipaddr"
module ActiveRecord
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb
index 110771e7a2..b7acbf7178 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/date_time.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb
index bc720a36c8..43d22c8daf 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb
index db1cd22b48..950d23d516 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/enum.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb
index 828bcd23dd..49dd4fc73f 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/inet.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/inet.rb
index 4cc78a8c10..96486fa65b 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/inet.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/inet.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
index bb0f8487fa..3c706c27c4 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb
index fcb6c1498d..a1fec289d4 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/jsonb.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/legacy_point.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/legacy_point.rb
index 3ed9fefee8..775eecaf85 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/legacy_point.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/legacy_point.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb
index cc3e0c9169..7a91272d1c 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/money.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/oid.rb
index d8b47e8e29..9c2ac08b30 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/oid.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb
index 3275f28d0c..7c764e7287 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
Point = Struct.new(:x, :y)
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
index eddb0fb0ac..54d5d0902e 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb
index f5270a64ab..564e82a4ac 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb
index 503691f7fc..d9ae1aa7a2 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
index 2fdf3b5d8e..5e839228e9 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb
index 6d86a221a7..b26e876b54 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/vector.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb
index f0e21f9f23..d40d837cee 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
index 628f13c44a..ee4230c6f2 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb b/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb
index 3387bad79f..44a7338bf5 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb
index 5fab6f60d2..e1d5089115 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
index 32b7239f54..11ea1e5144 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb
index a631e4534f..5555a46b6b 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
index 14e4929919..a710ea6cc9 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/string/strip"
module ActiveRecord
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb b/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb
index 110cc88872..f57179ae59 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
class PostgreSQLTypeMetadata < DelegateClass(SqlTypeMetadata)
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb b/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb
index 6a4d6d50bd..aa7940188a 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module PostgreSQL
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 38285366b4..e63563afc4 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
# Make sure we're using pg high enough for type casts and Ruby 2.2+ compatibility
gem "pg", "~> 0.18"
require "pg"
diff --git a/activerecord/lib/active_record/connection_adapters/schema_cache.rb b/activerecord/lib/active_record/connection_adapters/schema_cache.rb
index 32aa9d803b..4d339b0a8c 100644
--- a/activerecord/lib/active_record/connection_adapters/schema_cache.rb
+++ b/activerecord/lib/active_record/connection_adapters/schema_cache.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
class SchemaCache
diff --git a/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb b/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb
index e6908e9846..9e12ae0de8 100644
--- a/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb
+++ b/activerecord/lib/active_record/connection_adapters/sql_type_metadata.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# :stopdoc:
module ConnectionAdapters
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/explain_pretty_printer.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/explain_pretty_printer.rb
index 01cfafdd2b..6fe3e1211e 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3/explain_pretty_printer.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3/explain_pretty_printer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module SQLite3
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb
index c5bc797d48..7276a65098 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module SQLite3
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_creation.rb
index bcd43eac08..bc798d1dbb 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_creation.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_creation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module SQLite3
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb
index 7bbda675eb..e157e4b218 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module SQLite3
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_dumper.rb
index d265a60206..eec018eda3 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_dumper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module SQLite3
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb
index c268fc173b..31e83f9260 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
module SQLite3
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index 31d5b5946e..17c63d4b5f 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/connection_adapters/abstract_adapter"
require "active_record/connection_adapters/statement_pool"
require "active_record/connection_adapters/sqlite3/explain_pretty_printer"
diff --git a/activerecord/lib/active_record/connection_adapters/statement_pool.rb b/activerecord/lib/active_record/connection_adapters/statement_pool.rb
index e7c237d42f..790db56185 100644
--- a/activerecord/lib/active_record/connection_adapters/statement_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/statement_pool.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionAdapters
class StatementPool # :nodoc:
diff --git a/activerecord/lib/active_record/connection_handling.rb b/activerecord/lib/active_record/connection_handling.rb
index 61f160b99d..b8fbb489b6 100644
--- a/activerecord/lib/active_record/connection_handling.rb
+++ b/activerecord/lib/active_record/connection_handling.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionHandling
RAILS_ENV = -> { (Rails.env if defined?(Rails.env)) || ENV["RAILS_ENV"].presence || ENV["RACK_ENV"].presence }
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index f1eaa07f1a..198c712abc 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "thread"
require "active_support/core_ext/hash/indifferent_access"
require "active_support/core_ext/object/duplicable"
diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb
index 5dcd28244a..cbd71a3779 100644
--- a/activerecord/lib/active_record/counter_cache.rb
+++ b/activerecord/lib/active_record/counter_cache.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Counter Cache
module CounterCache
diff --git a/activerecord/lib/active_record/define_callbacks.rb b/activerecord/lib/active_record/define_callbacks.rb
index 291ebd3678..7d955a24be 100644
--- a/activerecord/lib/active_record/define_callbacks.rb
+++ b/activerecord/lib/active_record/define_callbacks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# This module exists because `ActiveRecord::AttributeMethods::Dirty` needs to
# define callbacks, but continue to have its version of `save` be the super
diff --git a/activerecord/lib/active_record/dynamic_matchers.rb b/activerecord/lib/active_record/dynamic_matchers.rb
index a3425c8097..3a9625092e 100644
--- a/activerecord/lib/active_record/dynamic_matchers.rb
+++ b/activerecord/lib/active_record/dynamic_matchers.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module DynamicMatchers #:nodoc:
private
diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb
index 86ffa28306..12ef58a941 100644
--- a/activerecord/lib/active_record/enum.rb
+++ b/activerecord/lib/active_record/enum.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/object/deep_dup"
module ActiveRecord
diff --git a/activerecord/lib/active_record/errors.rb b/activerecord/lib/active_record/errors.rb
index 7507d61535..60d4fb70e0 100644
--- a/activerecord/lib/active_record/errors.rb
+++ b/activerecord/lib/active_record/errors.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Errors
#
diff --git a/activerecord/lib/active_record/explain.rb b/activerecord/lib/active_record/explain.rb
index 31449e810e..5e67d16e9f 100644
--- a/activerecord/lib/active_record/explain.rb
+++ b/activerecord/lib/active_record/explain.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/explain_registry"
module ActiveRecord
diff --git a/activerecord/lib/active_record/explain_registry.rb b/activerecord/lib/active_record/explain_registry.rb
index 0af48be6fd..ef1ce3dc85 100644
--- a/activerecord/lib/active_record/explain_registry.rb
+++ b/activerecord/lib/active_record/explain_registry.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/per_thread_registry"
module ActiveRecord
diff --git a/activerecord/lib/active_record/explain_subscriber.rb b/activerecord/lib/active_record/explain_subscriber.rb
index 07a412a8a1..abd8cfc8f2 100644
--- a/activerecord/lib/active_record/explain_subscriber.rb
+++ b/activerecord/lib/active_record/explain_subscriber.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/notifications"
require "active_record/explain_registry"
diff --git a/activerecord/lib/active_record/fixture_set/file.rb b/activerecord/lib/active_record/fixture_set/file.rb
index 93b8ba07e9..6cf2e01179 100644
--- a/activerecord/lib/active_record/fixture_set/file.rb
+++ b/activerecord/lib/active_record/fixture_set/file.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "erb"
require "yaml"
diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb
index 1835965b7f..e9acb8acae 100644
--- a/activerecord/lib/active_record/fixtures.rb
+++ b/activerecord/lib/active_record/fixtures.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "erb"
require "yaml"
require "zlib"
diff --git a/activerecord/lib/active_record/gem_version.rb b/activerecord/lib/active_record/gem_version.rb
index a0434766f5..1a937dbcf7 100644
--- a/activerecord/lib/active_record/gem_version.rb
+++ b/activerecord/lib/active_record/gem_version.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# Returns the version of the currently loaded Active Record as a <tt>Gem::Version</tt>
def self.gem_version
diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb
index 10911b9a3e..5776807507 100644
--- a/activerecord/lib/active_record/inheritance.rb
+++ b/activerecord/lib/active_record/inheritance.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/hash/indifferent_access"
module ActiveRecord
diff --git a/activerecord/lib/active_record/integration.rb b/activerecord/lib/active_record/integration.rb
index 2bb96457c6..cf954852bc 100644
--- a/activerecord/lib/active_record/integration.rb
+++ b/activerecord/lib/active_record/integration.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/string/filters"
module ActiveRecord
diff --git a/activerecord/lib/active_record/internal_metadata.rb b/activerecord/lib/active_record/internal_metadata.rb
index 9ec6b51cb3..25ee9d6bfe 100644
--- a/activerecord/lib/active_record/internal_metadata.rb
+++ b/activerecord/lib/active_record/internal_metadata.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/scoping/default"
require "active_record/scoping/named"
diff --git a/activerecord/lib/active_record/legacy_yaml_adapter.rb b/activerecord/lib/active_record/legacy_yaml_adapter.rb
index ba74f1a56c..c7683f68c7 100644
--- a/activerecord/lib/active_record/legacy_yaml_adapter.rb
+++ b/activerecord/lib/active_record/legacy_yaml_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module LegacyYamlAdapter
def self.convert(klass, coder)
diff --git a/activerecord/lib/active_record/locking/optimistic.rb b/activerecord/lib/active_record/locking/optimistic.rb
index 2e2f2979d8..522da6a571 100644
--- a/activerecord/lib/active_record/locking/optimistic.rb
+++ b/activerecord/lib/active_record/locking/optimistic.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Locking
# == What is Optimistic Locking
diff --git a/activerecord/lib/active_record/locking/pessimistic.rb b/activerecord/lib/active_record/locking/pessimistic.rb
index 0fb4dc3a35..263e2a5f7f 100644
--- a/activerecord/lib/active_record/locking/pessimistic.rb
+++ b/activerecord/lib/active_record/locking/pessimistic.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Locking
# Locking::Pessimistic provides support for row-level locking using
diff --git a/activerecord/lib/active_record/log_subscriber.rb b/activerecord/lib/active_record/log_subscriber.rb
index e8593c1a48..e39ca5f6dc 100644
--- a/activerecord/lib/active_record/log_subscriber.rb
+++ b/activerecord/lib/active_record/log_subscriber.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class LogSubscriber < ActiveSupport::LogSubscriber
IGNORE_PAYLOAD_NAMES = ["SCHEMA", "EXPLAIN"]
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index 1b1403b1a5..1ff1dcad43 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "set"
require "zlib"
require "active_support/core_ext/module/attribute_accessors"
diff --git a/activerecord/lib/active_record/migration/command_recorder.rb b/activerecord/lib/active_record/migration/command_recorder.rb
index 1641044841..f9cf59b283 100644
--- a/activerecord/lib/active_record/migration/command_recorder.rb
+++ b/activerecord/lib/active_record/migration/command_recorder.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Migration
# <tt>ActiveRecord::Migration::CommandRecorder</tt> records commands done during
diff --git a/activerecord/lib/active_record/migration/compatibility.rb b/activerecord/lib/active_record/migration/compatibility.rb
index ccb1b2ddd7..188dd0acef 100644
--- a/activerecord/lib/active_record/migration/compatibility.rb
+++ b/activerecord/lib/active_record/migration/compatibility.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Migration
module Compatibility # :nodoc: all
diff --git a/activerecord/lib/active_record/migration/join_table.rb b/activerecord/lib/active_record/migration/join_table.rb
index 026217880c..89789f00ea 100644
--- a/activerecord/lib/active_record/migration/join_table.rb
+++ b/activerecord/lib/active_record/migration/join_table.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Migration
module JoinTable #:nodoc:
diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb
index e846bcc1a1..14e0f5bff7 100644
--- a/activerecord/lib/active_record/model_schema.rb
+++ b/activerecord/lib/active_record/model_schema.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "monitor"
module ActiveRecord
diff --git a/activerecord/lib/active_record/nested_attributes.rb b/activerecord/lib/active_record/nested_attributes.rb
index 43d4364e35..917bc76993 100644
--- a/activerecord/lib/active_record/nested_attributes.rb
+++ b/activerecord/lib/active_record/nested_attributes.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/hash/except"
require "active_support/core_ext/object/try"
require "active_support/core_ext/hash/indifferent_access"
diff --git a/activerecord/lib/active_record/no_touching.rb b/activerecord/lib/active_record/no_touching.rb
index 84ee036c17..4059020e25 100644
--- a/activerecord/lib/active_record/no_touching.rb
+++ b/activerecord/lib/active_record/no_touching.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record No Touching
module NoTouching
diff --git a/activerecord/lib/active_record/null_relation.rb b/activerecord/lib/active_record/null_relation.rb
index 6d65154a14..26966f9433 100644
--- a/activerecord/lib/active_record/null_relation.rb
+++ b/activerecord/lib/active_record/null_relation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module NullRelation # :nodoc:
def pluck(*column_names)
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index c310ae3575..b2dba5516e 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record \Persistence
module Persistence
diff --git a/activerecord/lib/active_record/query_cache.rb b/activerecord/lib/active_record/query_cache.rb
index 17e6bbfec0..e4c2e1f86f 100644
--- a/activerecord/lib/active_record/query_cache.rb
+++ b/activerecord/lib/active_record/query_cache.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Query Cache
class QueryCache
diff --git a/activerecord/lib/active_record/querying.rb b/activerecord/lib/active_record/querying.rb
index dd7d833a96..b16e178358 100644
--- a/activerecord/lib/active_record/querying.rb
+++ b/activerecord/lib/active_record/querying.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Querying
delegate :find, :take, :take!, :first, :first!, :last, :last!, :exists?, :any?, :many?, :none?, :one?, to: :all
diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb
index 441dca9fe7..73518ca144 100644
--- a/activerecord/lib/active_record/railtie.rb
+++ b/activerecord/lib/active_record/railtie.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record"
require "rails"
require "active_model/railtie"
diff --git a/activerecord/lib/active_record/railties/console_sandbox.rb b/activerecord/lib/active_record/railties/console_sandbox.rb
index 03286eacbb..604a220303 100644
--- a/activerecord/lib/active_record/railties/console_sandbox.rb
+++ b/activerecord/lib/active_record/railties/console_sandbox.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
ActiveRecord::Base.connection.begin_transaction(joinable: false)
at_exit do
diff --git a/activerecord/lib/active_record/railties/controller_runtime.rb b/activerecord/lib/active_record/railties/controller_runtime.rb
index 297f3fc8bc..8658188623 100644
--- a/activerecord/lib/active_record/railties/controller_runtime.rb
+++ b/activerecord/lib/active_record/railties/controller_runtime.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/module/attr_internal"
require "active_record/log_subscriber"
diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index 7c0d066e88..711099e9e1 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record"
db_namespace = namespace :db do
diff --git a/activerecord/lib/active_record/railties/jdbcmysql_error.rb b/activerecord/lib/active_record/railties/jdbcmysql_error.rb
index f614c067d7..d7cf4df339 100644
--- a/activerecord/lib/active_record/railties/jdbcmysql_error.rb
+++ b/activerecord/lib/active_record/railties/jdbcmysql_error.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
#FIXME Remove if ArJdbcMysql will give.
module ArJdbcMySQL #:nodoc:
class Error < StandardError #:nodoc:
diff --git a/activerecord/lib/active_record/readonly_attributes.rb b/activerecord/lib/active_record/readonly_attributes.rb
index 7bf305eb31..af6473d250 100644
--- a/activerecord/lib/active_record/readonly_attributes.rb
+++ b/activerecord/lib/active_record/readonly_attributes.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ReadonlyAttributes
extend ActiveSupport::Concern
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 6318bff685..8ff2f50fdb 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "thread"
require "active_support/core_ext/string/filters"
require "active_support/deprecation"
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index 55b59eeb54..52f5d5f3e3 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record \Relation
class Relation
diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb
index ac48ffb1bc..13a2c3f511 100644
--- a/activerecord/lib/active_record/relation/batches.rb
+++ b/activerecord/lib/active_record/relation/batches.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/relation/batches/batch_enumerator"
module ActiveRecord
diff --git a/activerecord/lib/active_record/relation/batches/batch_enumerator.rb b/activerecord/lib/active_record/relation/batches/batch_enumerator.rb
index 02c70d5cf0..3555779ec2 100644
--- a/activerecord/lib/active_record/relation/batches/batch_enumerator.rb
+++ b/activerecord/lib/active_record/relation/batches/batch_enumerator.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Batches
class BatchEnumerator
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
index 6514c7bde8..8a54f8f2c3 100644
--- a/activerecord/lib/active_record/relation/calculations.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Calculations
# Count the records.
diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb
index 6d3b59d339..48c4dcdef4 100644
--- a/activerecord/lib/active_record/relation/delegation.rb
+++ b/activerecord/lib/active_record/relation/delegation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Delegation # :nodoc:
module DelegateCache # :nodoc:
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 88c68685bc..eee0f36f63 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/string/filters"
module ActiveRecord
diff --git a/activerecord/lib/active_record/relation/from_clause.rb b/activerecord/lib/active_record/relation/from_clause.rb
index ea838b79a6..8945cb0cc5 100644
--- a/activerecord/lib/active_record/relation/from_clause.rb
+++ b/activerecord/lib/active_record/relation/from_clause.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Relation
class FromClause # :nodoc:
diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb
index 84c31e4126..5dac00724a 100644
--- a/activerecord/lib/active_record/relation/merger.rb
+++ b/activerecord/lib/active_record/relation/merger.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/hash/keys"
module ActiveRecord
diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb
index 72314180dd..7dea5deec5 100644
--- a/activerecord/lib/active_record/relation/predicate_builder.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder # :nodoc:
delegate :resolve_column_aliases, to: :table
diff --git a/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb
index 4d0778df36..1068e700e2 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class ArrayHandler # :nodoc:
diff --git a/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb b/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb
index 66690d6b5c..3e19646ae5 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class AssociationQueryValue # :nodoc:
diff --git a/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb
index 3472b16cef..3bb1037885 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class BaseHandler # :nodoc:
diff --git a/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb
index 3190602506..79cde00303 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class BasicObjectHandler # :nodoc:
diff --git a/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb b/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb
index 5032177757..7029ae5f47 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class PolymorphicArrayValue # :nodoc:
diff --git a/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb
index ddd804b508..5db778e19c 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class RangeHandler # :nodoc:
diff --git a/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb
index 4e1e644599..8a910a82fe 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class PredicateBuilder
class RelationHandler # :nodoc:
diff --git a/activerecord/lib/active_record/relation/query_attribute.rb b/activerecord/lib/active_record/relation/query_attribute.rb
index 410a375e52..a68e508fcc 100644
--- a/activerecord/lib/active_record/relation/query_attribute.rb
+++ b/activerecord/lib/active_record/relation/query_attribute.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/attribute"
module ActiveRecord
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 4ddc933e3d..d44f6fd572 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/relation/from_clause"
require "active_record/relation/query_attribute"
require "active_record/relation/where_clause"
diff --git a/activerecord/lib/active_record/relation/record_fetch_warning.rb b/activerecord/lib/active_record/relation/record_fetch_warning.rb
index 8e221f1570..31544c730e 100644
--- a/activerecord/lib/active_record/relation/record_fetch_warning.rb
+++ b/activerecord/lib/active_record/relation/record_fetch_warning.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Relation
module RecordFetchWarning
diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb
index 8b7b01259e..ada89b5ec3 100644
--- a/activerecord/lib/active_record/relation/spawn_methods.rb
+++ b/activerecord/lib/active_record/relation/spawn_methods.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/hash/except"
require "active_support/core_ext/hash/slice"
require "active_record/relation/merger"
diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb
index a809752928..119910ee79 100644
--- a/activerecord/lib/active_record/relation/where_clause.rb
+++ b/activerecord/lib/active_record/relation/where_clause.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Relation
class WhereClause # :nodoc:
diff --git a/activerecord/lib/active_record/relation/where_clause_factory.rb b/activerecord/lib/active_record/relation/where_clause_factory.rb
index 156088f534..b862dd56a5 100644
--- a/activerecord/lib/active_record/relation/where_clause_factory.rb
+++ b/activerecord/lib/active_record/relation/where_clause_factory.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class Relation
class WhereClauseFactory # :nodoc:
diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb
index 5e1c0bfefc..26b1d48e9e 100644
--- a/activerecord/lib/active_record/result.rb
+++ b/activerecord/lib/active_record/result.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
###
# This class encapsulates a result returned from calling
diff --git a/activerecord/lib/active_record/runtime_registry.rb b/activerecord/lib/active_record/runtime_registry.rb
index d068d8898e..b79eb2263f 100644
--- a/activerecord/lib/active_record/runtime_registry.rb
+++ b/activerecord/lib/active_record/runtime_registry.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/per_thread_registry"
module ActiveRecord
diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb
index a39e1a2e73..64bda1539c 100644
--- a/activerecord/lib/active_record/sanitization.rb
+++ b/activerecord/lib/active_record/sanitization.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Sanitization
extend ActiveSupport::Concern
diff --git a/activerecord/lib/active_record/schema.rb b/activerecord/lib/active_record/schema.rb
index 2578c5e3ef..5104427339 100644
--- a/activerecord/lib/active_record/schema.rb
+++ b/activerecord/lib/active_record/schema.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record \Schema
#
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index 767da6816d..66a2846f3a 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "stringio"
module ActiveRecord
diff --git a/activerecord/lib/active_record/schema_migration.rb b/activerecord/lib/active_record/schema_migration.rb
index e6336dfde3..f59737afb0 100644
--- a/activerecord/lib/active_record/schema_migration.rb
+++ b/activerecord/lib/active_record/schema_migration.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/scoping/default"
require "active_record/scoping/named"
diff --git a/activerecord/lib/active_record/scoping.rb b/activerecord/lib/active_record/scoping.rb
index c2cd35ee3b..94e0ef6724 100644
--- a/activerecord/lib/active_record/scoping.rb
+++ b/activerecord/lib/active_record/scoping.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/per_thread_registry"
module ActiveRecord
diff --git a/activerecord/lib/active_record/scoping/default.rb b/activerecord/lib/active_record/scoping/default.rb
index eeb89c405a..70b2693b28 100644
--- a/activerecord/lib/active_record/scoping/default.rb
+++ b/activerecord/lib/active_record/scoping/default.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Scoping
module Default
diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb
index c16cbce109..b4026fabb2 100644
--- a/activerecord/lib/active_record/scoping/named.rb
+++ b/activerecord/lib/active_record/scoping/named.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/array"
require "active_support/core_ext/hash/except"
require "active_support/core_ext/kernel/singleton_class"
diff --git a/activerecord/lib/active_record/secure_token.rb b/activerecord/lib/active_record/secure_token.rb
index 3b2d7e10bd..115799cc20 100644
--- a/activerecord/lib/active_record/secure_token.rb
+++ b/activerecord/lib/active_record/secure_token.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module SecureToken
extend ActiveSupport::Concern
diff --git a/activerecord/lib/active_record/serialization.rb b/activerecord/lib/active_record/serialization.rb
index 1907defb2e..db2bd0b55e 100644
--- a/activerecord/lib/active_record/serialization.rb
+++ b/activerecord/lib/active_record/serialization.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord #:nodoc:
# = Active Record \Serialization
module Serialization
diff --git a/activerecord/lib/active_record/statement_cache.rb b/activerecord/lib/active_record/statement_cache.rb
index fd04f9aedb..1877489e55 100644
--- a/activerecord/lib/active_record/statement_cache.rb
+++ b/activerecord/lib/active_record/statement_cache.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# Statement cache is used to cache a single statement in order to avoid creating the AST again.
# Initializing the cache is done by passing the statement in the create block:
diff --git a/activerecord/lib/active_record/store.rb b/activerecord/lib/active_record/store.rb
index 37888c28b5..006afe7495 100644
--- a/activerecord/lib/active_record/store.rb
+++ b/activerecord/lib/active_record/store.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/hash/indifferent_access"
module ActiveRecord
diff --git a/activerecord/lib/active_record/suppressor.rb b/activerecord/lib/active_record/suppressor.rb
index 02185c2e0b..d9acb1a1dc 100644
--- a/activerecord/lib/active_record/suppressor.rb
+++ b/activerecord/lib/active_record/suppressor.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# ActiveRecord::Suppressor prevents the receiver from being saved during
# a given block.
diff --git a/activerecord/lib/active_record/table_metadata.rb b/activerecord/lib/active_record/table_metadata.rb
index a5dd3008d0..71efc1829a 100644
--- a/activerecord/lib/active_record/table_metadata.rb
+++ b/activerecord/lib/active_record/table_metadata.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
class TableMetadata # :nodoc:
delegate :foreign_type, :foreign_key, to: :association, prefix: true
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index bdfa683be4..ba686fc562 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Tasks # :nodoc:
class DatabaseAlreadyExists < StandardError; end # :nodoc:
diff --git a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb
index 730d077ecf..88cbd6f6f5 100644
--- a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Tasks # :nodoc:
class MySQLDatabaseTasks # :nodoc:
diff --git a/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb b/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb
index e49480b27b..7f1a768d8b 100644
--- a/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "tempfile"
module ActiveRecord
diff --git a/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb b/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb
index 559142b57a..01562b21e9 100644
--- a/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Tasks # :nodoc:
class SQLiteDatabaseTasks # :nodoc:
diff --git a/activerecord/lib/active_record/touch_later.rb b/activerecord/lib/active_record/touch_later.rb
index 1e484e59e3..cacde9c881 100644
--- a/activerecord/lib/active_record/touch_later.rb
+++ b/activerecord/lib/active_record/touch_later.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record Touch Later
module TouchLater
diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb
index 4e8d2a44e1..45795fa287 100644
--- a/activerecord/lib/active_record/transactions.rb
+++ b/activerecord/lib/active_record/transactions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# See ActiveRecord::Transactions::ClassMethods for documentation.
module Transactions
diff --git a/activerecord/lib/active_record/translation.rb b/activerecord/lib/active_record/translation.rb
index ecc508902c..ddcb5f2a7a 100644
--- a/activerecord/lib/active_record/translation.rb
+++ b/activerecord/lib/active_record/translation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Translation
include ActiveModel::Translation
diff --git a/activerecord/lib/active_record/type.rb b/activerecord/lib/active_record/type.rb
index a179582e13..9ed6c95bf9 100644
--- a/activerecord/lib/active_record/type.rb
+++ b/activerecord/lib/active_record/type.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_model/type"
require "active_record/type/internal/timezone"
diff --git a/activerecord/lib/active_record/type/adapter_specific_registry.rb b/activerecord/lib/active_record/type/adapter_specific_registry.rb
index f24b9b9a36..7cc866f7a7 100644
--- a/activerecord/lib/active_record/type/adapter_specific_registry.rb
+++ b/activerecord/lib/active_record/type/adapter_specific_registry.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_model/type/registry"
module ActiveRecord
diff --git a/activerecord/lib/active_record/type/date.rb b/activerecord/lib/active_record/type/date.rb
index f1a40a8a6b..ccafed054e 100644
--- a/activerecord/lib/active_record/type/date.rb
+++ b/activerecord/lib/active_record/type/date.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class Date < ActiveModel::Type::Date
diff --git a/activerecord/lib/active_record/type/date_time.rb b/activerecord/lib/active_record/type/date_time.rb
index dadd76dbe0..1fb9380ecd 100644
--- a/activerecord/lib/active_record/type/date_time.rb
+++ b/activerecord/lib/active_record/type/date_time.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class DateTime < ActiveModel::Type::DateTime
diff --git a/activerecord/lib/active_record/type/decimal_without_scale.rb b/activerecord/lib/active_record/type/decimal_without_scale.rb
index ed0a4cfb23..53a5e205da 100644
--- a/activerecord/lib/active_record/type/decimal_without_scale.rb
+++ b/activerecord/lib/active_record/type/decimal_without_scale.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class DecimalWithoutScale < ActiveModel::Type::BigInteger # :nodoc:
diff --git a/activerecord/lib/active_record/type/hash_lookup_type_map.rb b/activerecord/lib/active_record/type/hash_lookup_type_map.rb
index 96b6297132..0145d5d6c1 100644
--- a/activerecord/lib/active_record/type/hash_lookup_type_map.rb
+++ b/activerecord/lib/active_record/type/hash_lookup_type_map.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class HashLookupTypeMap < TypeMap # :nodoc:
diff --git a/activerecord/lib/active_record/type/internal/timezone.rb b/activerecord/lib/active_record/type/internal/timezone.rb
index 0c7d8ed76e..947e06158a 100644
--- a/activerecord/lib/active_record/type/internal/timezone.rb
+++ b/activerecord/lib/active_record/type/internal/timezone.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
module Internal
diff --git a/activerecord/lib/active_record/type/json.rb b/activerecord/lib/active_record/type/json.rb
index 9aec74241b..c4732fe388 100644
--- a/activerecord/lib/active_record/type/json.rb
+++ b/activerecord/lib/active_record/type/json.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class Json < ActiveModel::Type::Value
diff --git a/activerecord/lib/active_record/type/serialized.rb b/activerecord/lib/active_record/type/serialized.rb
index 96e7ad7152..edbd20a6c1 100644
--- a/activerecord/lib/active_record/type/serialized.rb
+++ b/activerecord/lib/active_record/type/serialized.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class Serialized < DelegateClass(ActiveModel::Type::Value) # :nodoc:
diff --git a/activerecord/lib/active_record/type/text.rb b/activerecord/lib/active_record/type/text.rb
index 3d7dd630e3..cb1949700a 100644
--- a/activerecord/lib/active_record/type/text.rb
+++ b/activerecord/lib/active_record/type/text.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class Text < ActiveModel::Type::String # :nodoc:
diff --git a/activerecord/lib/active_record/type/time.rb b/activerecord/lib/active_record/type/time.rb
index 3ca7010c79..b9bac87c67 100644
--- a/activerecord/lib/active_record/type/time.rb
+++ b/activerecord/lib/active_record/type/time.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class Time < ActiveModel::Type::Time
diff --git a/activerecord/lib/active_record/type/type_map.rb b/activerecord/lib/active_record/type/type_map.rb
index f28caff991..7bce82a1ff 100644
--- a/activerecord/lib/active_record/type/type_map.rb
+++ b/activerecord/lib/active_record/type/type_map.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "concurrent/map"
module ActiveRecord
diff --git a/activerecord/lib/active_record/type/unsigned_integer.rb b/activerecord/lib/active_record/type/unsigned_integer.rb
index 45f5dc506e..9ae0109f9f 100644
--- a/activerecord/lib/active_record/type/unsigned_integer.rb
+++ b/activerecord/lib/active_record/type/unsigned_integer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Type
class UnsignedInteger < ActiveModel::Type::Integer # :nodoc:
diff --git a/activerecord/lib/active_record/type_caster.rb b/activerecord/lib/active_record/type_caster.rb
index dbe91dc12b..f1686e4913 100644
--- a/activerecord/lib/active_record/type_caster.rb
+++ b/activerecord/lib/active_record/type_caster.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_record/type_caster/map"
require "active_record/type_caster/connection"
diff --git a/activerecord/lib/active_record/type_caster/connection.rb b/activerecord/lib/active_record/type_caster/connection.rb
index 4f4570db58..9f7bbe8843 100644
--- a/activerecord/lib/active_record/type_caster/connection.rb
+++ b/activerecord/lib/active_record/type_caster/connection.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module TypeCaster
class Connection # :nodoc:
diff --git a/activerecord/lib/active_record/type_caster/map.rb b/activerecord/lib/active_record/type_caster/map.rb
index fd3477a826..9f79723125 100644
--- a/activerecord/lib/active_record/type_caster/map.rb
+++ b/activerecord/lib/active_record/type_caster/map.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module TypeCaster
class Map # :nodoc:
diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index 4727221774..9633f226f0 100644
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
# = Active Record \RecordInvalid
#
diff --git a/activerecord/lib/active_record/validations/absence.rb b/activerecord/lib/active_record/validations/absence.rb
index 57fbdb92ee..641d041f3d 100644
--- a/activerecord/lib/active_record/validations/absence.rb
+++ b/activerecord/lib/active_record/validations/absence.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Validations
class AbsenceValidator < ActiveModel::Validations::AbsenceValidator # :nodoc:
diff --git a/activerecord/lib/active_record/validations/associated.rb b/activerecord/lib/active_record/validations/associated.rb
index d7752b428b..c695965d7b 100644
--- a/activerecord/lib/active_record/validations/associated.rb
+++ b/activerecord/lib/active_record/validations/associated.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Validations
class AssociatedValidator < ActiveModel::EachValidator #:nodoc:
diff --git a/activerecord/lib/active_record/validations/length.rb b/activerecord/lib/active_record/validations/length.rb
index 82a17b4807..0e0cebce4a 100644
--- a/activerecord/lib/active_record/validations/length.rb
+++ b/activerecord/lib/active_record/validations/length.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Validations
class LengthValidator < ActiveModel::Validations::LengthValidator # :nodoc:
diff --git a/activerecord/lib/active_record/validations/presence.rb b/activerecord/lib/active_record/validations/presence.rb
index a8f8bc6b02..7cfd55f516 100644
--- a/activerecord/lib/active_record/validations/presence.rb
+++ b/activerecord/lib/active_record/validations/presence.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Validations
class PresenceValidator < ActiveModel::Validations::PresenceValidator # :nodoc:
diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb
index 86eeb5d7c5..154cf5f1a4 100644
--- a/activerecord/lib/active_record/validations/uniqueness.rb
+++ b/activerecord/lib/active_record/validations/uniqueness.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module Validations
class UniquenessValidator < ActiveModel::EachValidator # :nodoc:
diff --git a/activerecord/lib/active_record/version.rb b/activerecord/lib/active_record/version.rb
index 78e9169b2e..146cfacc18 100644
--- a/activerecord/lib/active_record/version.rb
+++ b/activerecord/lib/active_record/version.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require_relative "gem_version"
module ActiveRecord
diff --git a/activerecord/lib/rails/generators/active_record.rb b/activerecord/lib/rails/generators/active_record.rb
index aaa2a14702..a79b8eafea 100644
--- a/activerecord/lib/rails/generators/active_record.rb
+++ b/activerecord/lib/rails/generators/active_record.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "rails/generators/named_base"
require "rails/generators/active_model"
require "rails/generators/active_record/migration"
diff --git a/activerecord/lib/rails/generators/active_record/migration.rb b/activerecord/lib/rails/generators/active_record/migration.rb
index 6d07438dcb..47c0981a49 100644
--- a/activerecord/lib/rails/generators/active_record/migration.rb
+++ b/activerecord/lib/rails/generators/active_record/migration.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "rails/generators/migration"
module ActiveRecord
diff --git a/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb b/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb
index 61f507ddb3..1f1c47499b 100644
--- a/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb
+++ b/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "rails/generators/active_record"
module ActiveRecord
diff --git a/activerecord/lib/rails/generators/active_record/model/model_generator.rb b/activerecord/lib/rails/generators/active_record/model/model_generator.rb
index ee321089af..5cec07d2e3 100644
--- a/activerecord/lib/rails/generators/active_record/model/model_generator.rb
+++ b/activerecord/lib/rails/generators/active_record/model/model_generator.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "rails/generators/active_record"
module ActiveRecord
diff --git a/activerecord/test/active_record/connection_adapters/fake_adapter.rb b/activerecord/test/active_record/connection_adapters/fake_adapter.rb
index 9391569f2f..b0d8050721 100644
--- a/activerecord/test/active_record/connection_adapters/fake_adapter.rb
+++ b/activerecord/test/active_record/connection_adapters/fake_adapter.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ConnectionHandling
def fake_connection(config)
diff --git a/activerecord/test/cases/adapter_test.rb b/activerecord/test/cases/adapter_test.rb
index dd891cb2ed..a1fb6427f9 100644
--- a/activerecord/test/cases/adapter_test.rb
+++ b/activerecord/test/cases/adapter_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/book"
require "models/post"
diff --git a/activerecord/test/cases/adapters/mysql2/active_schema_test.rb b/activerecord/test/cases/adapters/mysql2/active_schema_test.rb
index fdf83aaf88..67e1efde27 100644
--- a/activerecord/test/cases/adapters/mysql2/active_schema_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/active_schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb b/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb
index 9f3d1459f7..8f7c803a21 100644
--- a/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/adapters/mysql2/boolean_test.rb b/activerecord/test/cases/adapters/mysql2/boolean_test.rb
index 9267d15def..58698d59db 100644
--- a/activerecord/test/cases/adapters/mysql2/boolean_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/boolean_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Mysql2BooleanTest < ActiveRecord::Mysql2TestCase
diff --git a/activerecord/test/cases/adapters/mysql2/case_sensitivity_test.rb b/activerecord/test/cases/adapters/mysql2/case_sensitivity_test.rb
index 65dc369213..50ba9ab831 100644
--- a/activerecord/test/cases/adapters/mysql2/case_sensitivity_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/case_sensitivity_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Mysql2CaseSensitivityTest < ActiveRecord::Mysql2TestCase
diff --git a/activerecord/test/cases/adapters/mysql2/charset_collation_test.rb b/activerecord/test/cases/adapters/mysql2/charset_collation_test.rb
index e77f4a90d4..e4a6ed5482 100644
--- a/activerecord/test/cases/adapters/mysql2/charset_collation_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/charset_collation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/connection_test.rb b/activerecord/test/cases/adapters/mysql2/connection_test.rb
index c5ff145e74..a2faf43b0d 100644
--- a/activerecord/test/cases/adapters/mysql2/connection_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/connection_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/datetime_precision_quoting_test.rb b/activerecord/test/cases/adapters/mysql2/datetime_precision_quoting_test.rb
index 86e72c149c..c131a5169c 100644
--- a/activerecord/test/cases/adapters/mysql2/datetime_precision_quoting_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/datetime_precision_quoting_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Mysql2DatetimePrecisionQuotingTest < ActiveRecord::Mysql2TestCase
diff --git a/activerecord/test/cases/adapters/mysql2/enum_test.rb b/activerecord/test/cases/adapters/mysql2/enum_test.rb
index b811179c1b..7ad3e3ca2d 100644
--- a/activerecord/test/cases/adapters/mysql2/enum_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/enum_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Mysql2EnumTest < ActiveRecord::Mysql2TestCase
diff --git a/activerecord/test/cases/adapters/mysql2/explain_test.rb b/activerecord/test/cases/adapters/mysql2/explain_test.rb
index 84c15af08d..7916921e5a 100644
--- a/activerecord/test/cases/adapters/mysql2/explain_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/explain_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/adapters/mysql2/json_test.rb b/activerecord/test/cases/adapters/mysql2/json_test.rb
index 2d39db4ce2..26c69edc7b 100644
--- a/activerecord/test/cases/adapters/mysql2/json_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/json_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "cases/json_shared_test_cases"
diff --git a/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb b/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb
index 7ba388bee1..565130c38f 100644
--- a/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/ddl_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb b/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb
index 4a421e2b91..251a50e41e 100644
--- a/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class SchemaMigrationsTest < ActiveRecord::Mysql2TestCase
diff --git a/activerecord/test/cases/adapters/mysql2/schema_test.rb b/activerecord/test/cases/adapters/mysql2/schema_test.rb
index c4bf58c13e..1fad5585de 100644
--- a/activerecord/test/cases/adapters/mysql2/schema_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/adapters/mysql2/sp_test.rb b/activerecord/test/cases/adapters/mysql2/sp_test.rb
index d4c4d02f79..4182532535 100644
--- a/activerecord/test/cases/adapters/mysql2/sp_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/sp_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/adapters/mysql2/sql_types_test.rb b/activerecord/test/cases/adapters/mysql2/sql_types_test.rb
index c412166451..d6e7f29a5c 100644
--- a/activerecord/test/cases/adapters/mysql2/sql_types_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/sql_types_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Mysql2SqlTypesTest < ActiveRecord::Mysql2TestCase
diff --git a/activerecord/test/cases/adapters/mysql2/table_options_test.rb b/activerecord/test/cases/adapters/mysql2/table_options_test.rb
index 54da2195d1..61a8ce9bc0 100644
--- a/activerecord/test/cases/adapters/mysql2/table_options_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/table_options_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/transaction_test.rb b/activerecord/test/cases/adapters/mysql2/transaction_test.rb
index e447e6ec83..16101e38cb 100644
--- a/activerecord/test/cases/adapters/mysql2/transaction_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/transaction_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/unsigned_type_test.rb b/activerecord/test/cases/adapters/mysql2/unsigned_type_test.rb
index 1703e8fef7..71dcfaa241 100644
--- a/activerecord/test/cases/adapters/mysql2/unsigned_type_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/unsigned_type_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/mysql2/virtual_column_test.rb b/activerecord/test/cases/adapters/mysql2/virtual_column_test.rb
index 85e283bfe1..442a4fb7b5 100644
--- a/activerecord/test/cases/adapters/mysql2/virtual_column_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/virtual_column_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/active_schema_test.rb b/activerecord/test/cases/adapters/postgresql/active_schema_test.rb
index 441e84a117..b787de8453 100644
--- a/activerecord/test/cases/adapters/postgresql/active_schema_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/active_schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlActiveSchemaTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/array_test.rb b/activerecord/test/cases/adapters/postgresql/array_test.rb
index a642145726..121c62dadf 100644
--- a/activerecord/test/cases/adapters/postgresql/array_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/array_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/bit_string_test.rb b/activerecord/test/cases/adapters/postgresql/bit_string_test.rb
index d7ed0aa8dd..7712e809a2 100644
--- a/activerecord/test/cases/adapters/postgresql/bit_string_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/bit_string_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/bytea_test.rb b/activerecord/test/cases/adapters/postgresql/bytea_test.rb
index 39d76de770..65baed34e9 100644
--- a/activerecord/test/cases/adapters/postgresql/bytea_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/bytea_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/case_insensitive_test.rb b/activerecord/test/cases/adapters/postgresql/case_insensitive_test.rb
index b6db6e5e28..03b44feab6 100644
--- a/activerecord/test/cases/adapters/postgresql/case_insensitive_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/case_insensitive_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlCaseInsensitiveTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/change_schema_test.rb b/activerecord/test/cases/adapters/postgresql/change_schema_test.rb
index 9d7fddfc02..ea642069d2 100644
--- a/activerecord/test/cases/adapters/postgresql/change_schema_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/change_schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/adapters/postgresql/cidr_test.rb b/activerecord/test/cases/adapters/postgresql/cidr_test.rb
index fccd8b3c7b..52f2a0096c 100644
--- a/activerecord/test/cases/adapters/postgresql/cidr_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/cidr_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "ipaddr"
diff --git a/activerecord/test/cases/adapters/postgresql/citext_test.rb b/activerecord/test/cases/adapters/postgresql/citext_test.rb
index ffdd2983c6..ca95e4b626 100644
--- a/activerecord/test/cases/adapters/postgresql/citext_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/citext_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/collation_test.rb b/activerecord/test/cases/adapters/postgresql/collation_test.rb
index 2929c9ad94..a603221d8f 100644
--- a/activerecord/test/cases/adapters/postgresql/collation_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/collation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/composite_test.rb b/activerecord/test/cases/adapters/postgresql/composite_test.rb
index 9eb422a8a3..1da2a9e2ac 100644
--- a/activerecord/test/cases/adapters/postgresql/composite_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/composite_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/connection_test.rb b/activerecord/test/cases/adapters/postgresql/connection_test.rb
index 3adae7e146..32afe331fa 100644
--- a/activerecord/test/cases/adapters/postgresql/connection_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/connection_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/datatype_test.rb b/activerecord/test/cases/adapters/postgresql/datatype_test.rb
index f947868898..0725fde5ae 100644
--- a/activerecord/test/cases/adapters/postgresql/datatype_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/datatype_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/ddl_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/domain_test.rb b/activerecord/test/cases/adapters/postgresql/domain_test.rb
index b16e0f9265..f1eb8adb15 100644
--- a/activerecord/test/cases/adapters/postgresql/domain_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/domain_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/enum_test.rb b/activerecord/test/cases/adapters/postgresql/enum_test.rb
index 0f8ab8ab23..5e5a3158ba 100644
--- a/activerecord/test/cases/adapters/postgresql/enum_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/enum_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/explain_test.rb b/activerecord/test/cases/adapters/postgresql/explain_test.rb
index 8a0cf440fd..d79fbccf47 100644
--- a/activerecord/test/cases/adapters/postgresql/explain_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/explain_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/adapters/postgresql/extension_migration_test.rb b/activerecord/test/cases/adapters/postgresql/extension_migration_test.rb
index ba2b4e1fbf..b56c226763 100644
--- a/activerecord/test/cases/adapters/postgresql/extension_migration_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/extension_migration_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlExtensionMigrationTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/full_text_test.rb b/activerecord/test/cases/adapters/postgresql/full_text_test.rb
index fa8aadd224..5ddfe32007 100644
--- a/activerecord/test/cases/adapters/postgresql/full_text_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/full_text_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/geometric_test.rb b/activerecord/test/cases/adapters/postgresql/geometric_test.rb
index 34836b2421..3b6840a1c9 100644
--- a/activerecord/test/cases/adapters/postgresql/geometric_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/geometric_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/hstore_test.rb b/activerecord/test/cases/adapters/postgresql/hstore_test.rb
index b547868b57..f9cce10fb8 100644
--- a/activerecord/test/cases/adapters/postgresql/hstore_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/hstore_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/infinity_test.rb b/activerecord/test/cases/adapters/postgresql/infinity_test.rb
index df5c688881..b9e177e6ec 100644
--- a/activerecord/test/cases/adapters/postgresql/infinity_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/infinity_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlInfinityTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/integer_test.rb b/activerecord/test/cases/adapters/postgresql/integer_test.rb
index 5557e869ad..b4e55964b9 100644
--- a/activerecord/test/cases/adapters/postgresql/integer_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/integer_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_support/core_ext/numeric/bytes"
diff --git a/activerecord/test/cases/adapters/postgresql/json_test.rb b/activerecord/test/cases/adapters/postgresql/json_test.rb
index 4438f349cc..6aa60630c2 100644
--- a/activerecord/test/cases/adapters/postgresql/json_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/json_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "cases/json_shared_test_cases"
diff --git a/activerecord/test/cases/adapters/postgresql/ltree_test.rb b/activerecord/test/cases/adapters/postgresql/ltree_test.rb
index 447d68316c..2b5ac1cac6 100644
--- a/activerecord/test/cases/adapters/postgresql/ltree_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/ltree_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/money_test.rb b/activerecord/test/cases/adapters/postgresql/money_test.rb
index f5c50a80c2..ea060345a7 100644
--- a/activerecord/test/cases/adapters/postgresql/money_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/money_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/network_test.rb b/activerecord/test/cases/adapters/postgresql/network_test.rb
index 2bbfb292c4..a33b0ef8a7 100644
--- a/activerecord/test/cases/adapters/postgresql/network_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/network_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/numbers_test.rb b/activerecord/test/cases/adapters/postgresql/numbers_test.rb
index 82edf7db3f..bfb2b7c27a 100644
--- a/activerecord/test/cases/adapters/postgresql/numbers_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/numbers_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlNumberTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb b/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb
index 7c7bb0a942..76e0ad60fe 100644
--- a/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/ddl_helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/prepared_statements_disabled_test.rb b/activerecord/test/cases/adapters/postgresql/prepared_statements_disabled_test.rb
index 0120e33f70..8c62690866 100644
--- a/activerecord/test/cases/adapters/postgresql/prepared_statements_disabled_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/prepared_statements_disabled_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/computer"
require "models/developer"
diff --git a/activerecord/test/cases/adapters/postgresql/quoting_test.rb b/activerecord/test/cases/adapters/postgresql/quoting_test.rb
index 1205559558..a1e966b915 100644
--- a/activerecord/test/cases/adapters/postgresql/quoting_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/quoting_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/adapters/postgresql/range_test.rb b/activerecord/test/cases/adapters/postgresql/range_test.rb
index 8de162a8a1..f411884dfd 100644
--- a/activerecord/test/cases/adapters/postgresql/range_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/range_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/referential_integrity_test.rb b/activerecord/test/cases/adapters/postgresql/referential_integrity_test.rb
index 0b17c141c8..0ff04bfa27 100644
--- a/activerecord/test/cases/adapters/postgresql/referential_integrity_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/referential_integrity_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/rename_table_test.rb b/activerecord/test/cases/adapters/postgresql/rename_table_test.rb
index 5b253999d5..e9e7f717ac 100644
--- a/activerecord/test/cases/adapters/postgresql/rename_table_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/rename_table_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlRenameTableTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/schema_authorization_test.rb b/activerecord/test/cases/adapters/postgresql/schema_authorization_test.rb
index db7d8ba751..f86a76e08a 100644
--- a/activerecord/test/cases/adapters/postgresql/schema_authorization_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/schema_authorization_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class SchemaThing < ActiveRecord::Base
diff --git a/activerecord/test/cases/adapters/postgresql/schema_test.rb b/activerecord/test/cases/adapters/postgresql/schema_test.rb
index 5438665d42..f6b957476b 100644
--- a/activerecord/test/cases/adapters/postgresql/schema_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/default"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/serial_test.rb b/activerecord/test/cases/adapters/postgresql/serial_test.rb
index 4930d3f67a..d711b3b729 100644
--- a/activerecord/test/cases/adapters/postgresql/serial_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/serial_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb b/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb
index 73cf91425b..146b619a4b 100644
--- a/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/adapters/postgresql/timestamp_test.rb b/activerecord/test/cases/adapters/postgresql/timestamp_test.rb
index c7dec25f3a..962450aada 100644
--- a/activerecord/test/cases/adapters/postgresql/timestamp_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/timestamp_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/topic"
diff --git a/activerecord/test/cases/adapters/postgresql/transaction_test.rb b/activerecord/test/cases/adapters/postgresql/transaction_test.rb
index c1b19c11f5..9b42d0383d 100644
--- a/activerecord/test/cases/adapters/postgresql/transaction_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/transaction_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
require "concurrent/atomic/cyclic_barrier"
diff --git a/activerecord/test/cases/adapters/postgresql/type_lookup_test.rb b/activerecord/test/cases/adapters/postgresql/type_lookup_test.rb
index 688117722b..784d77a8d1 100644
--- a/activerecord/test/cases/adapters/postgresql/type_lookup_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/type_lookup_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class PostgresqlTypeLookupTest < ActiveRecord::PostgreSQLTestCase
diff --git a/activerecord/test/cases/adapters/postgresql/utils_test.rb b/activerecord/test/cases/adapters/postgresql/utils_test.rb
index 1a655d7843..9f9e3bda2f 100644
--- a/activerecord/test/cases/adapters/postgresql/utils_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/utils_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_record/connection_adapters/postgresql/utils"
diff --git a/activerecord/test/cases/adapters/postgresql/uuid_test.rb b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
index 49c570c917..8eddd81c38 100644
--- a/activerecord/test/cases/adapters/postgresql/uuid_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/postgresql/xml_test.rb b/activerecord/test/cases/adapters/postgresql/xml_test.rb
index b0720b5a6e..826b384fb3 100644
--- a/activerecord/test/cases/adapters/postgresql/xml_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/xml_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/sqlite3/collation_test.rb b/activerecord/test/cases/adapters/sqlite3/collation_test.rb
index f3cbb408f1..dd88ed3656 100644
--- a/activerecord/test/cases/adapters/sqlite3/collation_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/collation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/adapters/sqlite3/copy_table_test.rb b/activerecord/test/cases/adapters/sqlite3/copy_table_test.rb
index cc1f74ed41..e1cfd703e8 100644
--- a/activerecord/test/cases/adapters/sqlite3/copy_table_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/copy_table_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class CopyTableTest < ActiveRecord::SQLite3TestCase
diff --git a/activerecord/test/cases/adapters/sqlite3/explain_test.rb b/activerecord/test/cases/adapters/sqlite3/explain_test.rb
index a3f6299756..29d97ae78c 100644
--- a/activerecord/test/cases/adapters/sqlite3/explain_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/explain_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/adapters/sqlite3/quoting_test.rb b/activerecord/test/cases/adapters/sqlite3/quoting_test.rb
index 0a5bf7754c..aefbb309e6 100644
--- a/activerecord/test/cases/adapters/sqlite3/quoting_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/quoting_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "bigdecimal"
require "securerandom"
diff --git a/activerecord/test/cases/adapters/sqlite3/sqlite3_adapter_test.rb b/activerecord/test/cases/adapters/sqlite3/sqlite3_adapter_test.rb
index bc6605682c..cf0c37f70c 100644
--- a/activerecord/test/cases/adapters/sqlite3/sqlite3_adapter_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/sqlite3_adapter_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/owner"
require "tempfile"
diff --git a/activerecord/test/cases/adapters/sqlite3/sqlite3_create_folder_test.rb b/activerecord/test/cases/adapters/sqlite3/sqlite3_create_folder_test.rb
index d23a7ac532..b1b4463bf1 100644
--- a/activerecord/test/cases/adapters/sqlite3/sqlite3_create_folder_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/sqlite3_create_folder_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/owner"
diff --git a/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb b/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb
index 76841c235a..37ff973397 100644
--- a/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class SQLite3StatementPoolTest < ActiveRecord::SQLite3TestCase
diff --git a/activerecord/test/cases/aggregations_test.rb b/activerecord/test/cases/aggregations_test.rb
index 97be9c447a..f8136fde72 100644
--- a/activerecord/test/cases/aggregations_test.rb
+++ b/activerecord/test/cases/aggregations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/customer"
diff --git a/activerecord/test/cases/ar_schema_test.rb b/activerecord/test/cases/ar_schema_test.rb
index aaae3736a9..5b608d8e83 100644
--- a/activerecord/test/cases/ar_schema_test.rb
+++ b/activerecord/test/cases/ar_schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class ActiveRecordSchemaTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/associations/association_scope_test.rb b/activerecord/test/cases/associations/association_scope_test.rb
index a57eb78a14..c54542ff7b 100644
--- a/activerecord/test/cases/associations/association_scope_test.rb
+++ b/activerecord/test/cases/associations/association_scope_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/author"
diff --git a/activerecord/test/cases/associations/belongs_to_associations_test.rb b/activerecord/test/cases/associations/belongs_to_associations_test.rb
index af3f40974d..a727cc6e60 100644
--- a/activerecord/test/cases/associations/belongs_to_associations_test.rb
+++ b/activerecord/test/cases/associations/belongs_to_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/project"
diff --git a/activerecord/test/cases/associations/bidirectional_destroy_dependencies_test.rb b/activerecord/test/cases/associations/bidirectional_destroy_dependencies_test.rb
index eee327a0bc..8a0e041864 100644
--- a/activerecord/test/cases/associations/bidirectional_destroy_dependencies_test.rb
+++ b/activerecord/test/cases/associations/bidirectional_destroy_dependencies_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/content"
diff --git a/activerecord/test/cases/associations/callbacks_test.rb b/activerecord/test/cases/associations/callbacks_test.rb
index b91fb5b7ed..f9d1e44595 100644
--- a/activerecord/test/cases/associations/callbacks_test.rb
+++ b/activerecord/test/cases/associations/callbacks_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/author"
diff --git a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
index ea2582b507..7b0445025c 100644
--- a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
+++ b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/associations/eager_load_includes_full_sti_class_test.rb b/activerecord/test/cases/associations/eager_load_includes_full_sti_class_test.rb
index f6de62b1af..61f39b4136 100644
--- a/activerecord/test/cases/associations/eager_load_includes_full_sti_class_test.rb
+++ b/activerecord/test/cases/associations/eager_load_includes_full_sti_class_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/tagging"
diff --git a/activerecord/test/cases/associations/eager_load_nested_include_test.rb b/activerecord/test/cases/associations/eager_load_nested_include_test.rb
index 83c85cd022..e9f551b6b2 100644
--- a/activerecord/test/cases/associations/eager_load_nested_include_test.rb
+++ b/activerecord/test/cases/associations/eager_load_nested_include_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/tag"
diff --git a/activerecord/test/cases/associations/eager_singularization_test.rb b/activerecord/test/cases/associations/eager_singularization_test.rb
index 860bb9ac54..16eff15026 100644
--- a/activerecord/test/cases/associations/eager_singularization_test.rb
+++ b/activerecord/test/cases/associations/eager_singularization_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class EagerSingularizationTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb
index e0b137304b..55b294cfaa 100644
--- a/activerecord/test/cases/associations/eager_test.rb
+++ b/activerecord/test/cases/associations/eager_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/tagging"
diff --git a/activerecord/test/cases/associations/extension_test.rb b/activerecord/test/cases/associations/extension_test.rb
index d2f21583a7..f707a170f5 100644
--- a/activerecord/test/cases/associations/extension_test.rb
+++ b/activerecord/test/cases/associations/extension_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
index fa40bd2ff8..f73005b3cb 100644
--- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index 5ad1e2aecc..a7e16af88d 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb
index 6794428688..1c2138a3d0 100644
--- a/activerecord/test/cases/associations/has_many_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/person"
diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb
index 545eec7e5d..bf3b8dcd63 100644
--- a/activerecord/test/cases/associations/has_one_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/associations/has_one_through_associations_test.rb b/activerecord/test/cases/associations/has_one_through_associations_test.rb
index 0a74a9e710..28b883586d 100644
--- a/activerecord/test/cases/associations/has_one_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_through_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/club"
require "models/member_type"
diff --git a/activerecord/test/cases/associations/inner_join_association_test.rb b/activerecord/test/cases/associations/inner_join_association_test.rb
index 6fff4171c8..ddf5bc6f0b 100644
--- a/activerecord/test/cases/associations/inner_join_association_test.rb
+++ b/activerecord/test/cases/associations/inner_join_association_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/associations/inverse_associations_test.rb b/activerecord/test/cases/associations/inverse_associations_test.rb
index 95ba6bdf8a..8e3087e7ca 100644
--- a/activerecord/test/cases/associations/inverse_associations_test.rb
+++ b/activerecord/test/cases/associations/inverse_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/man"
require "models/face"
diff --git a/activerecord/test/cases/associations/join_model_test.rb b/activerecord/test/cases/associations/join_model_test.rb
index c2758b30a1..c078cef064 100644
--- a/activerecord/test/cases/associations/join_model_test.rb
+++ b/activerecord/test/cases/associations/join_model_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/tag"
require "models/tagging"
diff --git a/activerecord/test/cases/associations/left_outer_join_association_test.rb b/activerecord/test/cases/associations/left_outer_join_association_test.rb
index 68c9286972..6d3757f467 100644
--- a/activerecord/test/cases/associations/left_outer_join_association_test.rb
+++ b/activerecord/test/cases/associations/left_outer_join_association_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/associations/nested_through_associations_test.rb b/activerecord/test/cases/associations/nested_through_associations_test.rb
index 90b2d4bc07..67ff7355b3 100644
--- a/activerecord/test/cases/associations/nested_through_associations_test.rb
+++ b/activerecord/test/cases/associations/nested_through_associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/author"
require "models/post"
diff --git a/activerecord/test/cases/associations/required_test.rb b/activerecord/test/cases/associations/required_test.rb
index 6cf2d8ac12..45e1803858 100644
--- a/activerecord/test/cases/associations/required_test.rb
+++ b/activerecord/test/cases/associations/required_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class RequiredAssociationsTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/associations_test.rb b/activerecord/test/cases/associations_test.rb
index ba2f4c11c8..2eb31326a5 100644
--- a/activerecord/test/cases/associations_test.rb
+++ b/activerecord/test/cases/associations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/computer"
require "models/developer"
diff --git a/activerecord/test/cases/attribute_decorators_test.rb b/activerecord/test/cases/attribute_decorators_test.rb
index eb8efab6a5..cfa6ed1da6 100644
--- a/activerecord/test/cases/attribute_decorators_test.rb
+++ b/activerecord/test/cases/attribute_decorators_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/attribute_methods/read_test.rb b/activerecord/test/cases/attribute_methods/read_test.rb
index a366144e17..1fc63a49d4 100644
--- a/activerecord/test/cases/attribute_methods/read_test.rb
+++ b/activerecord/test/cases/attribute_methods/read_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/attribute_methods_test.rb b/activerecord/test/cases/attribute_methods_test.rb
index 1f3a3652d7..4d24a980dc 100644
--- a/activerecord/test/cases/attribute_methods_test.rb
+++ b/activerecord/test/cases/attribute_methods_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/minimalistic"
require "models/developer"
diff --git a/activerecord/test/cases/attribute_set_test.rb b/activerecord/test/cases/attribute_set_test.rb
index 80c67f171b..bd4b200735 100644
--- a/activerecord/test/cases/attribute_set_test.rb
+++ b/activerecord/test/cases/attribute_set_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/attribute_test.rb b/activerecord/test/cases/attribute_test.rb
index ed9fb1b57b..e856d551c0 100644
--- a/activerecord/test/cases/attribute_test.rb
+++ b/activerecord/test/cases/attribute_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/attributes_test.rb b/activerecord/test/cases/attributes_test.rb
index 8aa515fe6e..3705a6be89 100644
--- a/activerecord/test/cases/attributes_test.rb
+++ b/activerecord/test/cases/attributes_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class OverloadedType < ActiveRecord::Base
diff --git a/activerecord/test/cases/autosave_association_test.rb b/activerecord/test/cases/autosave_association_test.rb
index db2a19ea62..2203aa1788 100644
--- a/activerecord/test/cases/autosave_association_test.rb
+++ b/activerecord/test/cases/autosave_association_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/bird"
require "models/post"
diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index a26a4bbb61..dc32e995a4 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/author"
diff --git a/activerecord/test/cases/batches_test.rb b/activerecord/test/cases/batches_test.rb
index beae679542..1a66b82b2e 100644
--- a/activerecord/test/cases/batches_test.rb
+++ b/activerecord/test/cases/batches_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/subscriber"
diff --git a/activerecord/test/cases/binary_test.rb b/activerecord/test/cases/binary_test.rb
index 89301563f9..f6ac7990d1 100644
--- a/activerecord/test/cases/binary_test.rb
+++ b/activerecord/test/cases/binary_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
# Without using prepared statements, it makes no sense to test
diff --git a/activerecord/test/cases/bind_parameter_test.rb b/activerecord/test/cases/bind_parameter_test.rb
index 8504f586cc..5af44c27eb 100644
--- a/activerecord/test/cases/bind_parameter_test.rb
+++ b/activerecord/test/cases/bind_parameter_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/author"
diff --git a/activerecord/test/cases/cache_key_test.rb b/activerecord/test/cases/cache_key_test.rb
index f0a1bb9e22..7b8264e6e8 100644
--- a/activerecord/test/cases/cache_key_test.rb
+++ b/activerecord/test/cases/cache_key_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb
index 478b9fe742..80baaac30a 100644
--- a/activerecord/test/cases/calculations_test.rb
+++ b/activerecord/test/cases/calculations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/book"
require "models/club"
diff --git a/activerecord/test/cases/callbacks_test.rb b/activerecord/test/cases/callbacks_test.rb
index 55deaa6947..b3c86586d0 100644
--- a/activerecord/test/cases/callbacks_test.rb
+++ b/activerecord/test/cases/callbacks_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/developer"
require "models/computer"
diff --git a/activerecord/test/cases/clone_test.rb b/activerecord/test/cases/clone_test.rb
index fa0f53676e..b89294c094 100644
--- a/activerecord/test/cases/clone_test.rb
+++ b/activerecord/test/cases/clone_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/coders/json_test.rb b/activerecord/test/cases/coders/json_test.rb
index 95e6fb3e7b..d22d93d129 100644
--- a/activerecord/test/cases/coders/json_test.rb
+++ b/activerecord/test/cases/coders/json_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/coders/yaml_column_test.rb b/activerecord/test/cases/coders/yaml_column_test.rb
index e3e85a58a4..a26a72712d 100644
--- a/activerecord/test/cases/coders/yaml_column_test.rb
+++ b/activerecord/test/cases/coders/yaml_column_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/collection_cache_key_test.rb b/activerecord/test/cases/collection_cache_key_test.rb
index 2d10a68416..f344c77691 100644
--- a/activerecord/test/cases/collection_cache_key_test.rb
+++ b/activerecord/test/cases/collection_cache_key_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/computer"
require "models/developer"
diff --git a/activerecord/test/cases/column_alias_test.rb b/activerecord/test/cases/column_alias_test.rb
index 506ae05756..9893ba9580 100644
--- a/activerecord/test/cases/column_alias_test.rb
+++ b/activerecord/test/cases/column_alias_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/column_definition_test.rb b/activerecord/test/cases/column_definition_test.rb
index fcb0952c1c..90c8d21c43 100644
--- a/activerecord/test/cases/column_definition_test.rb
+++ b/activerecord/test/cases/column_definition_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/comment_test.rb b/activerecord/test/cases/comment_test.rb
index 5c91ac347c..c23be52a6c 100644
--- a/activerecord/test/cases/comment_test.rb
+++ b/activerecord/test/cases/comment_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/connection_adapters/adapter_leasing_test.rb b/activerecord/test/cases/connection_adapters/adapter_leasing_test.rb
index 4f88b129af..64189381cb 100644
--- a/activerecord/test/cases/connection_adapters/adapter_leasing_test.rb
+++ b/activerecord/test/cases/connection_adapters/adapter_leasing_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/connection_adapters/connection_handler_test.rb b/activerecord/test/cases/connection_adapters/connection_handler_test.rb
index f8725ddb01..2a71f08d90 100644
--- a/activerecord/test/cases/connection_adapters/connection_handler_test.rb
+++ b/activerecord/test/cases/connection_adapters/connection_handler_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/connection_adapters/connection_specification_test.rb b/activerecord/test/cases/connection_adapters/connection_specification_test.rb
index 40998c06bf..10a3521c79 100644
--- a/activerecord/test/cases/connection_adapters/connection_specification_test.rb
+++ b/activerecord/test/cases/connection_adapters/connection_specification_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/connection_adapters/merge_and_resolve_default_url_config_test.rb b/activerecord/test/cases/connection_adapters/merge_and_resolve_default_url_config_test.rb
index 7c98c80e39..8faa67255d 100644
--- a/activerecord/test/cases/connection_adapters/merge_and_resolve_default_url_config_test.rb
+++ b/activerecord/test/cases/connection_adapters/merge_and_resolve_default_url_config_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/connection_adapters/mysql_type_lookup_test.rb b/activerecord/test/cases/connection_adapters/mysql_type_lookup_test.rb
index 133632bac9..3657b8340d 100644
--- a/activerecord/test/cases/connection_adapters/mysql_type_lookup_test.rb
+++ b/activerecord/test/cases/connection_adapters/mysql_type_lookup_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
if current_adapter?(:Mysql2Adapter)
diff --git a/activerecord/test/cases/connection_adapters/schema_cache_test.rb b/activerecord/test/cases/connection_adapters/schema_cache_test.rb
index 3370818616..106323ccc9 100644
--- a/activerecord/test/cases/connection_adapters/schema_cache_test.rb
+++ b/activerecord/test/cases/connection_adapters/schema_cache_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/connection_adapters/type_lookup_test.rb b/activerecord/test/cases/connection_adapters/type_lookup_test.rb
index 251483da44..a348c2d783 100644
--- a/activerecord/test/cases/connection_adapters/type_lookup_test.rb
+++ b/activerecord/test/cases/connection_adapters/type_lookup_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
unless current_adapter?(:PostgreSQLAdapter) # PostgreSQL does not use type strings for lookup
diff --git a/activerecord/test/cases/connection_management_test.rb b/activerecord/test/cases/connection_management_test.rb
index 9bd0aab981..d1e946d401 100644
--- a/activerecord/test/cases/connection_management_test.rb
+++ b/activerecord/test/cases/connection_management_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "rack"
diff --git a/activerecord/test/cases/connection_pool_test.rb b/activerecord/test/cases/connection_pool_test.rb
index adbd158e7a..00a0187b57 100644
--- a/activerecord/test/cases/connection_pool_test.rb
+++ b/activerecord/test/cases/connection_pool_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "concurrent/atomic/count_down_latch"
diff --git a/activerecord/test/cases/connection_specification/resolver_test.rb b/activerecord/test/cases/connection_specification/resolver_test.rb
index 3d97281627..13b5bae13c 100644
--- a/activerecord/test/cases/connection_specification/resolver_test.rb
+++ b/activerecord/test/cases/connection_specification/resolver_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/core_test.rb b/activerecord/test/cases/core_test.rb
index 5cf962c39d..936f26ce04 100644
--- a/activerecord/test/cases/core_test.rb
+++ b/activerecord/test/cases/core_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/person"
require "models/topic"
diff --git a/activerecord/test/cases/counter_cache_test.rb b/activerecord/test/cases/counter_cache_test.rb
index 14800e6b91..46d7526cc0 100644
--- a/activerecord/test/cases/counter_cache_test.rb
+++ b/activerecord/test/cases/counter_cache_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/car"
diff --git a/activerecord/test/cases/custom_locking_test.rb b/activerecord/test/cases/custom_locking_test.rb
index e170843952..15c8b684e4 100644
--- a/activerecord/test/cases/custom_locking_test.rb
+++ b/activerecord/test/cases/custom_locking_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/person"
diff --git a/activerecord/test/cases/database_statements_test.rb b/activerecord/test/cases/database_statements_test.rb
index 5df028d397..66035865be 100644
--- a/activerecord/test/cases/database_statements_test.rb
+++ b/activerecord/test/cases/database_statements_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class DatabaseStatementsTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/date_test.rb b/activerecord/test/cases/date_test.rb
index 202100ff69..2edc0415cd 100644
--- a/activerecord/test/cases/date_test.rb
+++ b/activerecord/test/cases/date_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/date_time_precision_test.rb b/activerecord/test/cases/date_time_precision_test.rb
index 12b1858991..e4a2f9ee17 100644
--- a/activerecord/test/cases/date_time_precision_test.rb
+++ b/activerecord/test/cases/date_time_precision_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/date_time_test.rb b/activerecord/test/cases/date_time_test.rb
index 8753c95641..ad7da9de70 100644
--- a/activerecord/test/cases/date_time_test.rb
+++ b/activerecord/test/cases/date_time_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/task"
diff --git a/activerecord/test/cases/defaults_test.rb b/activerecord/test/cases/defaults_test.rb
index 30cfa0744f..996d298689 100644
--- a/activerecord/test/cases/defaults_test.rb
+++ b/activerecord/test/cases/defaults_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
require "models/default"
diff --git a/activerecord/test/cases/dirty_test.rb b/activerecord/test/cases/dirty_test.rb
index cc2724502b..f72e0d2ead 100644
--- a/activerecord/test/cases/dirty_test.rb
+++ b/activerecord/test/cases/dirty_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic" # For booleans
require "models/pirate" # For timestamps
diff --git a/activerecord/test/cases/disconnected_test.rb b/activerecord/test/cases/disconnected_test.rb
index 92365351b1..c25089a420 100644
--- a/activerecord/test/cases/disconnected_test.rb
+++ b/activerecord/test/cases/disconnected_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class TestRecord < ActiveRecord::Base
diff --git a/activerecord/test/cases/dup_test.rb b/activerecord/test/cases/dup_test.rb
index 76979dc798..000ed27efb 100644
--- a/activerecord/test/cases/dup_test.rb
+++ b/activerecord/test/cases/dup_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/reply"
require "models/topic"
diff --git a/activerecord/test/cases/enum_test.rb b/activerecord/test/cases/enum_test.rb
index 8e13582f3e..4ef9a125e6 100644
--- a/activerecord/test/cases/enum_test.rb
+++ b/activerecord/test/cases/enum_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/author"
require "models/book"
diff --git a/activerecord/test/cases/errors_test.rb b/activerecord/test/cases/errors_test.rb
index 45e28c4f03..e90669e0c7 100644
--- a/activerecord/test/cases/errors_test.rb
+++ b/activerecord/test/cases/errors_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class ErrorsTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/explain_subscriber_test.rb b/activerecord/test/cases/explain_subscriber_test.rb
index 0fb6bf2eed..ca87e04012 100644
--- a/activerecord/test/cases/explain_subscriber_test.rb
+++ b/activerecord/test/cases/explain_subscriber_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_record/explain_subscriber"
require "active_record/explain_registry"
diff --git a/activerecord/test/cases/explain_test.rb b/activerecord/test/cases/explain_test.rb
index de3ec36667..4f6bd9327c 100644
--- a/activerecord/test/cases/explain_test.rb
+++ b/activerecord/test/cases/explain_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/car"
require "active_support/core_ext/string/strip"
diff --git a/activerecord/test/cases/finder_respond_to_test.rb b/activerecord/test/cases/finder_respond_to_test.rb
index 29d7dee343..3eaa993d45 100644
--- a/activerecord/test/cases/finder_respond_to_test.rb
+++ b/activerecord/test/cases/finder_respond_to_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/finder_test.rb b/activerecord/test/cases/finder_test.rb
index 752ac519a4..420f552ef6 100644
--- a/activerecord/test/cases/finder_test.rb
+++ b/activerecord/test/cases/finder_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/author"
diff --git a/activerecord/test/cases/fixture_set/file_test.rb b/activerecord/test/cases/fixture_set/file_test.rb
index c7058133b2..533edcc2e0 100644
--- a/activerecord/test/cases/fixture_set/file_test.rb
+++ b/activerecord/test/cases/fixture_set/file_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "tempfile"
diff --git a/activerecord/test/cases/fixtures_test.rb b/activerecord/test/cases/fixtures_test.rb
index 91d0908450..b499e60922 100644
--- a/activerecord/test/cases/fixtures_test.rb
+++ b/activerecord/test/cases/fixtures_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/admin"
require "models/admin/account"
diff --git a/activerecord/test/cases/forbidden_attributes_protection_test.rb b/activerecord/test/cases/forbidden_attributes_protection_test.rb
index d11ec08dea..ffa3f63e0d 100644
--- a/activerecord/test/cases/forbidden_attributes_protection_test.rb
+++ b/activerecord/test/cases/forbidden_attributes_protection_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_support/core_ext/hash/indifferent_access"
diff --git a/activerecord/test/cases/habtm_destroy_order_test.rb b/activerecord/test/cases/habtm_destroy_order_test.rb
index 124e3216d0..365d4576dd 100644
--- a/activerecord/test/cases/habtm_destroy_order_test.rb
+++ b/activerecord/test/cases/habtm_destroy_order_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/lesson"
require "models/student"
diff --git a/activerecord/test/cases/helper.rb b/activerecord/test/cases/helper.rb
index 84a784e6d5..5a3b8e3fb5 100644
--- a/activerecord/test/cases/helper.rb
+++ b/activerecord/test/cases/helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "config"
require "stringio"
diff --git a/activerecord/test/cases/hot_compatibility_test.rb b/activerecord/test/cases/hot_compatibility_test.rb
index 970ccc3601..e107ff2362 100644
--- a/activerecord/test/cases/hot_compatibility_test.rb
+++ b/activerecord/test/cases/hot_compatibility_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/connection_helper"
diff --git a/activerecord/test/cases/i18n_test.rb b/activerecord/test/cases/i18n_test.rb
index 94b5e4ef2f..7f03c5b23d 100644
--- a/activerecord/test/cases/i18n_test.rb
+++ b/activerecord/test/cases/i18n_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/inheritance_test.rb b/activerecord/test/cases/inheritance_test.rb
index e73d9d0a27..fb5a7bcc31 100644
--- a/activerecord/test/cases/inheritance_test.rb
+++ b/activerecord/test/cases/inheritance_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/author"
require "models/company"
diff --git a/activerecord/test/cases/integration_test.rb b/activerecord/test/cases/integration_test.rb
index 1075366fb1..9104976126 100644
--- a/activerecord/test/cases/integration_test.rb
+++ b/activerecord/test/cases/integration_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/company"
require "models/developer"
diff --git a/activerecord/test/cases/invalid_connection_test.rb b/activerecord/test/cases/invalid_connection_test.rb
index 256ad59407..1367af2859 100644
--- a/activerecord/test/cases/invalid_connection_test.rb
+++ b/activerecord/test/cases/invalid_connection_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
if current_adapter?(:Mysql2Adapter)
diff --git a/activerecord/test/cases/invertible_migration_test.rb b/activerecord/test/cases/invertible_migration_test.rb
index a44a351209..cc3951e2ba 100644
--- a/activerecord/test/cases/invertible_migration_test.rb
+++ b/activerecord/test/cases/invertible_migration_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Horse < ActiveRecord::Base
diff --git a/activerecord/test/cases/json_attribute_test.rb b/activerecord/test/cases/json_attribute_test.rb
index c64e2c31de..e5848b45f8 100644
--- a/activerecord/test/cases/json_attribute_test.rb
+++ b/activerecord/test/cases/json_attribute_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "cases/json_shared_test_cases"
diff --git a/activerecord/test/cases/json_serialization_test.rb b/activerecord/test/cases/json_serialization_test.rb
index 2ca95fe3b4..9b4b61b16e 100644
--- a/activerecord/test/cases/json_serialization_test.rb
+++ b/activerecord/test/cases/json_serialization_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/contact"
require "models/post"
diff --git a/activerecord/test/cases/json_shared_test_cases.rb b/activerecord/test/cases/json_shared_test_cases.rb
index 1eeefb78dd..9a1c1c3f3f 100644
--- a/activerecord/test/cases/json_shared_test_cases.rb
+++ b/activerecord/test/cases/json_shared_test_cases.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "support/schema_dumping_helper"
module JSONSharedTestCases
diff --git a/activerecord/test/cases/locking_test.rb b/activerecord/test/cases/locking_test.rb
index e67ec22c42..2fc52393f2 100644
--- a/activerecord/test/cases/locking_test.rb
+++ b/activerecord/test/cases/locking_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "thread"
require "cases/helper"
require "models/person"
diff --git a/activerecord/test/cases/log_subscriber_test.rb b/activerecord/test/cases/log_subscriber_test.rb
index 0eaca0d001..b80257962c 100644
--- a/activerecord/test/cases/log_subscriber_test.rb
+++ b/activerecord/test/cases/log_subscriber_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/binary"
require "models/developer"
diff --git a/activerecord/test/cases/migration/change_schema_test.rb b/activerecord/test/cases/migration/change_schema_test.rb
index e706fc4f08..1d305fa11f 100644
--- a/activerecord/test/cases/migration/change_schema_test.rb
+++ b/activerecord/test/cases/migration/change_schema_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/change_table_test.rb b/activerecord/test/cases/migration/change_table_test.rb
index f1ca91887b..ec817a579b 100644
--- a/activerecord/test/cases/migration/change_table_test.rb
+++ b/activerecord/test/cases/migration/change_table_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/migration/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/column_attributes_test.rb b/activerecord/test/cases/migration/column_attributes_test.rb
index 5ef0847a64..48df931543 100644
--- a/activerecord/test/cases/migration/column_attributes_test.rb
+++ b/activerecord/test/cases/migration/column_attributes_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/migration/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/column_positioning_test.rb b/activerecord/test/cases/migration/column_positioning_test.rb
index bdbad431e8..f2162d91b1 100644
--- a/activerecord/test/cases/migration/column_positioning_test.rb
+++ b/activerecord/test/cases/migration/column_positioning_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/columns_test.rb b/activerecord/test/cases/migration/columns_test.rb
index c4751277f7..2329888345 100644
--- a/activerecord/test/cases/migration/columns_test.rb
+++ b/activerecord/test/cases/migration/columns_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/migration/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/command_recorder_test.rb b/activerecord/test/cases/migration/command_recorder_test.rb
index be200a7225..007926f1b9 100644
--- a/activerecord/test/cases/migration/command_recorder_test.rb
+++ b/activerecord/test/cases/migration/command_recorder_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/compatibility_test.rb b/activerecord/test/cases/migration/compatibility_test.rb
index 4321f967d2..596a21dcbc 100644
--- a/activerecord/test/cases/migration/compatibility_test.rb
+++ b/activerecord/test/cases/migration/compatibility_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/migration/create_join_table_test.rb b/activerecord/test/cases/migration/create_join_table_test.rb
index 0e9e880fe1..c4896f3d6e 100644
--- a/activerecord/test/cases/migration/create_join_table_test.rb
+++ b/activerecord/test/cases/migration/create_join_table_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/foreign_key_test.rb b/activerecord/test/cases/migration/foreign_key_test.rb
index 7a44b2db75..7762d37915 100644
--- a/activerecord/test/cases/migration/foreign_key_test.rb
+++ b/activerecord/test/cases/migration/foreign_key_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/migration/helper.rb b/activerecord/test/cases/migration/helper.rb
index e366ed92b1..9c0fa7339d 100644
--- a/activerecord/test/cases/migration/helper.rb
+++ b/activerecord/test/cases/migration/helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/index_test.rb b/activerecord/test/cases/migration/index_test.rb
index ccc0f4948f..f10fcf1398 100644
--- a/activerecord/test/cases/migration/index_test.rb
+++ b/activerecord/test/cases/migration/index_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/logger_test.rb b/activerecord/test/cases/migration/logger_test.rb
index 9fe64b73a8..3d7c7ad469 100644
--- a/activerecord/test/cases/migration/logger_test.rb
+++ b/activerecord/test/cases/migration/logger_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/pending_migrations_test.rb b/activerecord/test/cases/migration/pending_migrations_test.rb
index 0cb4b6cfa1..6970fdcc87 100644
--- a/activerecord/test/cases/migration/pending_migrations_test.rb
+++ b/activerecord/test/cases/migration/pending_migrations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/references_foreign_key_test.rb b/activerecord/test/cases/migration/references_foreign_key_test.rb
index 405fd7aaed..718b9a0613 100644
--- a/activerecord/test/cases/migration/references_foreign_key_test.rb
+++ b/activerecord/test/cases/migration/references_foreign_key_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
if ActiveRecord::Base.connection.supports_foreign_keys_in_create?
diff --git a/activerecord/test/cases/migration/references_index_test.rb b/activerecord/test/cases/migration/references_index_test.rb
index 2954f1e275..2866cabab6 100644
--- a/activerecord/test/cases/migration/references_index_test.rb
+++ b/activerecord/test/cases/migration/references_index_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/references_statements_test.rb b/activerecord/test/cases/migration/references_statements_test.rb
index f8b373bdee..e9eb9968cb 100644
--- a/activerecord/test/cases/migration/references_statements_test.rb
+++ b/activerecord/test/cases/migration/references_statements_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/migration/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration/rename_table_test.rb b/activerecord/test/cases/migration/rename_table_test.rb
index bee528ca8a..5da3ad33a3 100644
--- a/activerecord/test/cases/migration/rename_table_test.rb
+++ b/activerecord/test/cases/migration/rename_table_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/migration/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index 315e58668a..3a49a41580 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "cases/migration/helper"
require "bigdecimal/util"
diff --git a/activerecord/test/cases/migrator_test.rb b/activerecord/test/cases/migrator_test.rb
index b93643922d..2e4b454a86 100644
--- a/activerecord/test/cases/migrator_test.rb
+++ b/activerecord/test/cases/migrator_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "cases/migration/helper"
diff --git a/activerecord/test/cases/mixin_test.rb b/activerecord/test/cases/mixin_test.rb
index 82190c283e..a8af8e30f7 100644
--- a/activerecord/test/cases/mixin_test.rb
+++ b/activerecord/test/cases/mixin_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class Mixin < ActiveRecord::Base
diff --git a/activerecord/test/cases/modules_test.rb b/activerecord/test/cases/modules_test.rb
index 514911cb13..f8a7bab35f 100644
--- a/activerecord/test/cases/modules_test.rb
+++ b/activerecord/test/cases/modules_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/company_in_module"
require "models/shop"
diff --git a/activerecord/test/cases/multiparameter_attributes_test.rb b/activerecord/test/cases/multiparameter_attributes_test.rb
index 7a35b5dc84..ceb5724377 100644
--- a/activerecord/test/cases/multiparameter_attributes_test.rb
+++ b/activerecord/test/cases/multiparameter_attributes_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/customer"
diff --git a/activerecord/test/cases/multiple_db_test.rb b/activerecord/test/cases/multiple_db_test.rb
index bfa5da765b..e3bb51bd77 100644
--- a/activerecord/test/cases/multiple_db_test.rb
+++ b/activerecord/test/cases/multiple_db_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/entrant"
require "models/bird"
diff --git a/activerecord/test/cases/nested_attributes_test.rb b/activerecord/test/cases/nested_attributes_test.rb
index aea65a7baf..154faa56aa 100644
--- a/activerecord/test/cases/nested_attributes_test.rb
+++ b/activerecord/test/cases/nested_attributes_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/pirate"
require "models/ship"
diff --git a/activerecord/test/cases/nested_attributes_with_callbacks_test.rb b/activerecord/test/cases/nested_attributes_with_callbacks_test.rb
index 905ddef063..b9d2acbed2 100644
--- a/activerecord/test/cases/nested_attributes_with_callbacks_test.rb
+++ b/activerecord/test/cases/nested_attributes_with_callbacks_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/pirate"
require "models/bird"
diff --git a/activerecord/test/cases/numeric_data_test.rb b/activerecord/test/cases/numeric_data_test.rb
index b0a3d566bb..76b97033af 100644
--- a/activerecord/test/cases/numeric_data_test.rb
+++ b/activerecord/test/cases/numeric_data_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/numeric_data"
diff --git a/activerecord/test/cases/persistence_test.rb b/activerecord/test/cases/persistence_test.rb
index 8f0099ee48..5895c51714 100644
--- a/activerecord/test/cases/persistence_test.rb
+++ b/activerecord/test/cases/persistence_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/aircraft"
require "models/post"
diff --git a/activerecord/test/cases/pooled_connections_test.rb b/activerecord/test/cases/pooled_connections_test.rb
index d99318f1aa..f1b0d08765 100644
--- a/activerecord/test/cases/pooled_connections_test.rb
+++ b/activerecord/test/cases/pooled_connections_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/project"
require "timeout"
diff --git a/activerecord/test/cases/primary_keys_test.rb b/activerecord/test/cases/primary_keys_test.rb
index 61cd6b45a1..56229b70bc 100644
--- a/activerecord/test/cases/primary_keys_test.rb
+++ b/activerecord/test/cases/primary_keys_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
require "models/topic"
diff --git a/activerecord/test/cases/query_cache_test.rb b/activerecord/test/cases/query_cache_test.rb
index fb5305d288..b018a7b6c0 100644
--- a/activerecord/test/cases/query_cache_test.rb
+++ b/activerecord/test/cases/query_cache_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/task"
diff --git a/activerecord/test/cases/quoting_test.rb b/activerecord/test/cases/quoting_test.rb
index 4cfad9c21f..0819776fbf 100644
--- a/activerecord/test/cases/quoting_test.rb
+++ b/activerecord/test/cases/quoting_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/readonly_test.rb b/activerecord/test/cases/readonly_test.rb
index 2e8d108985..24b678310d 100644
--- a/activerecord/test/cases/readonly_test.rb
+++ b/activerecord/test/cases/readonly_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/author"
require "models/post"
diff --git a/activerecord/test/cases/reaper_test.rb b/activerecord/test/cases/reaper_test.rb
index 153311bece..249878b67d 100644
--- a/activerecord/test/cases/reaper_test.rb
+++ b/activerecord/test/cases/reaper_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/reflection_test.rb b/activerecord/test/cases/reflection_test.rb
index e27000472c..c1c2efb9c8 100644
--- a/activerecord/test/cases/reflection_test.rb
+++ b/activerecord/test/cases/reflection_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/customer"
diff --git a/activerecord/test/cases/relation/delegation_test.rb b/activerecord/test/cases/relation/delegation_test.rb
index 5945eab75a..3b15f051b2 100644
--- a/activerecord/test/cases/relation/delegation_test.rb
+++ b/activerecord/test/cases/relation/delegation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/relation/merging_test.rb b/activerecord/test/cases/relation/merging_test.rb
index feb5604284..3901824aac 100644
--- a/activerecord/test/cases/relation/merging_test.rb
+++ b/activerecord/test/cases/relation/merging_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/author"
require "models/comment"
diff --git a/activerecord/test/cases/relation/mutation_test.rb b/activerecord/test/cases/relation/mutation_test.rb
index 113ddaa780..dea787c07f 100644
--- a/activerecord/test/cases/relation/mutation_test.rb
+++ b/activerecord/test/cases/relation/mutation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
diff --git a/activerecord/test/cases/relation/or_test.rb b/activerecord/test/cases/relation/or_test.rb
index 541feabeb6..61b6601580 100644
--- a/activerecord/test/cases/relation/or_test.rb
+++ b/activerecord/test/cases/relation/or_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
diff --git a/activerecord/test/cases/relation/predicate_builder_test.rb b/activerecord/test/cases/relation/predicate_builder_test.rb
index 94cd704a14..48758dc148 100644
--- a/activerecord/test/cases/relation/predicate_builder_test.rb
+++ b/activerecord/test/cases/relation/predicate_builder_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/relation/record_fetch_warning_test.rb b/activerecord/test/cases/relation/record_fetch_warning_test.rb
index 59eb524f5a..62ca051431 100644
--- a/activerecord/test/cases/relation/record_fetch_warning_test.rb
+++ b/activerecord/test/cases/relation/record_fetch_warning_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "active_record/relation/record_fetch_warning"
diff --git a/activerecord/test/cases/relation/where_chain_test.rb b/activerecord/test/cases/relation/where_chain_test.rb
index 351e955947..86e150ed79 100644
--- a/activerecord/test/cases/relation/where_chain_test.rb
+++ b/activerecord/test/cases/relation/where_chain_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/relation/where_clause_test.rb b/activerecord/test/cases/relation/where_clause_test.rb
index 59a7002774..f8eb0dee91 100644
--- a/activerecord/test/cases/relation/where_clause_test.rb
+++ b/activerecord/test/cases/relation/where_clause_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class ActiveRecord::Relation
diff --git a/activerecord/test/cases/relation/where_test.rb b/activerecord/test/cases/relation/where_test.rb
index ac4fcfff1d..42dae4d569 100644
--- a/activerecord/test/cases/relation/where_test.rb
+++ b/activerecord/test/cases/relation/where_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/author"
require "models/binary"
diff --git a/activerecord/test/cases/relation_test.rb b/activerecord/test/cases/relation_test.rb
index f81b155657..a403824f1a 100644
--- a/activerecord/test/cases/relation_test.rb
+++ b/activerecord/test/cases/relation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index c804bbf3a5..5767dec315 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/tag"
require "models/tagging"
diff --git a/activerecord/test/cases/reload_models_test.rb b/activerecord/test/cases/reload_models_test.rb
index 6c2f9fb5ab..3f4c0c03e3 100644
--- a/activerecord/test/cases/reload_models_test.rb
+++ b/activerecord/test/cases/reload_models_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/owner"
require "models/pet"
diff --git a/activerecord/test/cases/reserved_word_test.rb b/activerecord/test/cases/reserved_word_test.rb
index 44f7a28215..f3019a5326 100644
--- a/activerecord/test/cases/reserved_word_test.rb
+++ b/activerecord/test/cases/reserved_word_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class ReservedWordTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/result_test.rb b/activerecord/test/cases/result_test.rb
index b4044acd57..1a0b7c6ca7 100644
--- a/activerecord/test/cases/result_test.rb
+++ b/activerecord/test/cases/result_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/sanitize_test.rb b/activerecord/test/cases/sanitize_test.rb
index a0e7f4ae60..72f09186e2 100644
--- a/activerecord/test/cases/sanitize_test.rb
+++ b/activerecord/test/cases/sanitize_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/binary"
require "models/author"
diff --git a/activerecord/test/cases/schema_dumper_test.rb b/activerecord/test/cases/schema_dumper_test.rb
index 86a0e93832..4c81e825fa 100644
--- a/activerecord/test/cases/schema_dumper_test.rb
+++ b/activerecord/test/cases/schema_dumper_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/schema_loading_test.rb b/activerecord/test/cases/schema_loading_test.rb
index e3b7755f07..362370ac61 100644
--- a/activerecord/test/cases/schema_loading_test.rb
+++ b/activerecord/test/cases/schema_loading_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module SchemaLoadCounter
diff --git a/activerecord/test/cases/scoping/default_scoping_test.rb b/activerecord/test/cases/scoping/default_scoping_test.rb
index 9919ed5e3f..89fb434b27 100644
--- a/activerecord/test/cases/scoping/default_scoping_test.rb
+++ b/activerecord/test/cases/scoping/default_scoping_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/comment"
diff --git a/activerecord/test/cases/scoping/named_scoping_test.rb b/activerecord/test/cases/scoping/named_scoping_test.rb
index ea338a9847..483ea7128d 100644
--- a/activerecord/test/cases/scoping/named_scoping_test.rb
+++ b/activerecord/test/cases/scoping/named_scoping_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/topic"
diff --git a/activerecord/test/cases/scoping/relation_scoping_test.rb b/activerecord/test/cases/scoping/relation_scoping_test.rb
index 644e7eb692..10553bf057 100644
--- a/activerecord/test/cases/scoping/relation_scoping_test.rb
+++ b/activerecord/test/cases/scoping/relation_scoping_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/post"
require "models/author"
diff --git a/activerecord/test/cases/secure_token_test.rb b/activerecord/test/cases/secure_token_test.rb
index 987ae3074f..7b9cbee40a 100644
--- a/activerecord/test/cases/secure_token_test.rb
+++ b/activerecord/test/cases/secure_token_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/user"
diff --git a/activerecord/test/cases/serialization_test.rb b/activerecord/test/cases/serialization_test.rb
index 82e0311d84..ec33ad38f2 100644
--- a/activerecord/test/cases/serialization_test.rb
+++ b/activerecord/test/cases/serialization_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/contact"
require "models/topic"
diff --git a/activerecord/test/cases/serialized_attribute_test.rb b/activerecord/test/cases/serialized_attribute_test.rb
index 6525730350..e1bdaab5cf 100644
--- a/activerecord/test/cases/serialized_attribute_test.rb
+++ b/activerecord/test/cases/serialized_attribute_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/statement_cache_test.rb b/activerecord/test/cases/statement_cache_test.rb
index ee1a8bfc36..fab3648564 100644
--- a/activerecord/test/cases/statement_cache_test.rb
+++ b/activerecord/test/cases/statement_cache_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/book"
require "models/liquid"
diff --git a/activerecord/test/cases/store_test.rb b/activerecord/test/cases/store_test.rb
index 0ece0632fe..633a8a0ebc 100644
--- a/activerecord/test/cases/store_test.rb
+++ b/activerecord/test/cases/store_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/admin"
require "models/admin/user"
diff --git a/activerecord/test/cases/suppressor_test.rb b/activerecord/test/cases/suppressor_test.rb
index bc85461322..a7d16b7cdb 100644
--- a/activerecord/test/cases/suppressor_test.rb
+++ b/activerecord/test/cases/suppressor_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/notification"
require "models/user"
diff --git a/activerecord/test/cases/tasks/database_tasks_test.rb b/activerecord/test/cases/tasks/database_tasks_test.rb
index b8280c4aaf..c47c97e9d9 100644
--- a/activerecord/test/cases/tasks/database_tasks_test.rb
+++ b/activerecord/test/cases/tasks/database_tasks_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_record/tasks/database_tasks"
diff --git a/activerecord/test/cases/tasks/mysql_rake_test.rb b/activerecord/test/cases/tasks/mysql_rake_test.rb
index 02c0cfbb92..9c6fb14376 100644
--- a/activerecord/test/cases/tasks/mysql_rake_test.rb
+++ b/activerecord/test/cases/tasks/mysql_rake_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_record/tasks/database_tasks"
diff --git a/activerecord/test/cases/tasks/postgresql_rake_test.rb b/activerecord/test/cases/tasks/postgresql_rake_test.rb
index 9369d1eedb..a2e968aedf 100644
--- a/activerecord/test/cases/tasks/postgresql_rake_test.rb
+++ b/activerecord/test/cases/tasks/postgresql_rake_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_record/tasks/database_tasks"
diff --git a/activerecord/test/cases/tasks/sqlite_rake_test.rb b/activerecord/test/cases/tasks/sqlite_rake_test.rb
index 0deedad671..ccb3834fee 100644
--- a/activerecord/test/cases/tasks/sqlite_rake_test.rb
+++ b/activerecord/test/cases/tasks/sqlite_rake_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "active_record/tasks/database_tasks"
require "pathname"
diff --git a/activerecord/test/cases/test_case.rb b/activerecord/test/cases/test_case.rb
index 247d0ec3d1..9f594fef85 100644
--- a/activerecord/test/cases/test_case.rb
+++ b/activerecord/test/cases/test_case.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/test_case"
require "active_support/testing/autorun"
require "active_support/testing/method_call_assertions"
diff --git a/activerecord/test/cases/test_fixtures_test.rb b/activerecord/test/cases/test_fixtures_test.rb
index e542716563..58d3bea3a2 100644
--- a/activerecord/test/cases/test_fixtures_test.rb
+++ b/activerecord/test/cases/test_fixtures_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class TestFixturesTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/time_precision_test.rb b/activerecord/test/cases/time_precision_test.rb
index 3a8f8af0e6..09c585167e 100644
--- a/activerecord/test/cases/time_precision_test.rb
+++ b/activerecord/test/cases/time_precision_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/timestamp_test.rb b/activerecord/test/cases/timestamp_test.rb
index 0f58c96504..39b40e3411 100644
--- a/activerecord/test/cases/timestamp_test.rb
+++ b/activerecord/test/cases/timestamp_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "support/ddl_helper"
require "models/developer"
diff --git a/activerecord/test/cases/touch_later_test.rb b/activerecord/test/cases/touch_later_test.rb
index 24b5e8886f..d1e8c649d9 100644
--- a/activerecord/test/cases/touch_later_test.rb
+++ b/activerecord/test/cases/touch_later_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/invoice"
require "models/line_item"
diff --git a/activerecord/test/cases/transaction_callbacks_test.rb b/activerecord/test/cases/transaction_callbacks_test.rb
index aa0d8f5e65..eaa4dd09a9 100644
--- a/activerecord/test/cases/transaction_callbacks_test.rb
+++ b/activerecord/test/cases/transaction_callbacks_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/owner"
require "models/pet"
diff --git a/activerecord/test/cases/transaction_isolation_test.rb b/activerecord/test/cases/transaction_isolation_test.rb
index 380d7dbb0a..58abfadaf4 100644
--- a/activerecord/test/cases/transaction_isolation_test.rb
+++ b/activerecord/test/cases/transaction_isolation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
unless ActiveRecord::Base.connection.supports_transaction_isolation?
diff --git a/activerecord/test/cases/transactions_test.rb b/activerecord/test/cases/transactions_test.rb
index ced6045955..79ba306ef5 100644
--- a/activerecord/test/cases/transactions_test.rb
+++ b/activerecord/test/cases/transactions_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/type/adapter_specific_registry_test.rb b/activerecord/test/cases/type/adapter_specific_registry_test.rb
index a723a952ea..8b836b4793 100644
--- a/activerecord/test/cases/type/adapter_specific_registry_test.rb
+++ b/activerecord/test/cases/type/adapter_specific_registry_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/type/date_time_test.rb b/activerecord/test/cases/type/date_time_test.rb
index 9307587564..6848619ece 100644
--- a/activerecord/test/cases/type/date_time_test.rb
+++ b/activerecord/test/cases/type/date_time_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/task"
diff --git a/activerecord/test/cases/type/integer_test.rb b/activerecord/test/cases/type/integer_test.rb
index 13d6d2093b..368b6d7199 100644
--- a/activerecord/test/cases/type/integer_test.rb
+++ b/activerecord/test/cases/type/integer_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/company"
diff --git a/activerecord/test/cases/type/string_test.rb b/activerecord/test/cases/type/string_test.rb
index 899d7ae767..a95da864fa 100644
--- a/activerecord/test/cases/type/string_test.rb
+++ b/activerecord/test/cases/type/string_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/type/type_map_test.rb b/activerecord/test/cases/type/type_map_test.rb
index f171175b2a..2959d36466 100644
--- a/activerecord/test/cases/type/type_map_test.rb
+++ b/activerecord/test/cases/type/type_map_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/type/unsigned_integer_test.rb b/activerecord/test/cases/type/unsigned_integer_test.rb
index b0a60a2b3d..1cd4dbc2c5 100644
--- a/activerecord/test/cases/type/unsigned_integer_test.rb
+++ b/activerecord/test/cases/type/unsigned_integer_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/type_test.rb b/activerecord/test/cases/type_test.rb
index 0f9f698760..d45a9b3141 100644
--- a/activerecord/test/cases/type_test.rb
+++ b/activerecord/test/cases/type_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class TypeTest < ActiveRecord::TestCase
diff --git a/activerecord/test/cases/types_test.rb b/activerecord/test/cases/types_test.rb
index ea55bb00cd..11476ea0ef 100644
--- a/activerecord/test/cases/types_test.rb
+++ b/activerecord/test/cases/types_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
diff --git a/activerecord/test/cases/unconnected_test.rb b/activerecord/test/cases/unconnected_test.rb
index 30efd03955..b210584644 100644
--- a/activerecord/test/cases/unconnected_test.rb
+++ b/activerecord/test/cases/unconnected_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
class TestRecord < ActiveRecord::Base
diff --git a/activerecord/test/cases/validations/absence_validation_test.rb b/activerecord/test/cases/validations/absence_validation_test.rb
index 051f14dbb7..870619e4e7 100644
--- a/activerecord/test/cases/validations/absence_validation_test.rb
+++ b/activerecord/test/cases/validations/absence_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/face"
require "models/interest"
diff --git a/activerecord/test/cases/validations/association_validation_test.rb b/activerecord/test/cases/validations/association_validation_test.rb
index 0935dc8c32..f5ceb27d97 100644
--- a/activerecord/test/cases/validations/association_validation_test.rb
+++ b/activerecord/test/cases/validations/association_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb b/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb
index fdfd568897..a57065ba75 100644
--- a/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb
+++ b/activerecord/test/cases/validations/i18n_generate_message_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
diff --git a/activerecord/test/cases/validations/i18n_validation_test.rb b/activerecord/test/cases/validations/i18n_validation_test.rb
index a020c877e7..fd88a3ea67 100644
--- a/activerecord/test/cases/validations/i18n_validation_test.rb
+++ b/activerecord/test/cases/validations/i18n_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/validations/length_validation_test.rb b/activerecord/test/cases/validations/length_validation_test.rb
index 7f840dfa7c..ba45c6dcc1 100644
--- a/activerecord/test/cases/validations/length_validation_test.rb
+++ b/activerecord/test/cases/validations/length_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/owner"
require "models/pet"
diff --git a/activerecord/test/cases/validations/presence_validation_test.rb b/activerecord/test/cases/validations/presence_validation_test.rb
index dee8528124..13956e26ec 100644
--- a/activerecord/test/cases/validations/presence_validation_test.rb
+++ b/activerecord/test/cases/validations/presence_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/man"
require "models/face"
diff --git a/activerecord/test/cases/validations/uniqueness_validation_test.rb b/activerecord/test/cases/validations/uniqueness_validation_test.rb
index e943d03720..28605d2f8e 100644
--- a/activerecord/test/cases/validations/uniqueness_validation_test.rb
+++ b/activerecord/test/cases/validations/uniqueness_validation_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/validations_repair_helper.rb b/activerecord/test/cases/validations_repair_helper.rb
index 30299fd2c6..b30666d876 100644
--- a/activerecord/test/cases/validations_repair_helper.rb
+++ b/activerecord/test/cases/validations_repair_helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ActiveRecord
module ValidationsRepairHelper
extend ActiveSupport::Concern
diff --git a/activerecord/test/cases/validations_test.rb b/activerecord/test/cases/validations_test.rb
index fc9678211a..a305aa295a 100644
--- a/activerecord/test/cases/validations_test.rb
+++ b/activerecord/test/cases/validations_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/cases/view_test.rb b/activerecord/test/cases/view_test.rb
index 89b72ec336..1d21a2454f 100644
--- a/activerecord/test/cases/view_test.rb
+++ b/activerecord/test/cases/view_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/book"
require "support/schema_dumping_helper"
diff --git a/activerecord/test/cases/yaml_serialization_test.rb b/activerecord/test/cases/yaml_serialization_test.rb
index 1b67e150f3..dd8d2c1178 100644
--- a/activerecord/test/cases/yaml_serialization_test.rb
+++ b/activerecord/test/cases/yaml_serialization_test.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "cases/helper"
require "models/topic"
require "models/reply"
diff --git a/activerecord/test/config.rb b/activerecord/test/config.rb
index d0d1933300..a65e6ff776 100644
--- a/activerecord/test/config.rb
+++ b/activerecord/test/config.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
TEST_ROOT = __dir__
ASSETS_ROOT = TEST_ROOT + "/assets"
FIXTURES_ROOT = TEST_ROOT + "/fixtures"
diff --git a/activerecord/test/migrations/10_urban/9_add_expressions.rb b/activerecord/test/migrations/10_urban/9_add_expressions.rb
index db9fda3e05..e908c9eabc 100644
--- a/activerecord/test/migrations/10_urban/9_add_expressions.rb
+++ b/activerecord/test/migrations/10_urban/9_add_expressions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class AddExpressions < ActiveRecord::Migration::Current
def self.up
create_table("expressions") do |t|
diff --git a/activerecord/test/migrations/decimal/1_give_me_big_numbers.rb b/activerecord/test/migrations/decimal/1_give_me_big_numbers.rb
index f13f72eb4e..43c79bc20b 100644
--- a/activerecord/test/migrations/decimal/1_give_me_big_numbers.rb
+++ b/activerecord/test/migrations/decimal/1_give_me_big_numbers.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class GiveMeBigNumbers < ActiveRecord::Migration::Current
def self.up
create_table :big_numbers do |table|
diff --git a/activerecord/test/migrations/magic/1_currencies_have_symbols.rb b/activerecord/test/migrations/magic/1_currencies_have_symbols.rb
index d8a864b213..d4b0e6cd95 100644
--- a/activerecord/test/migrations/magic/1_currencies_have_symbols.rb
+++ b/activerecord/test/migrations/magic/1_currencies_have_symbols.rb
@@ -1,10 +1,9 @@
-# frozen_string_literal: true
# coding: ISO-8859-15
class CurrenciesHaveSymbols < ActiveRecord::Migration::Current
def self.up
- # We use € for default currency symbol
- add_column "currencies", "symbol", :string, default: "€"
+ # We use € for default currency symbol
+ add_column "currencies", "symbol", :string, default: "€"
end
def self.down
diff --git a/activerecord/test/migrations/missing/1000_people_have_middle_names.rb b/activerecord/test/migrations/missing/1000_people_have_middle_names.rb
index a1a5dcbac2..e046944e31 100644
--- a/activerecord/test/migrations/missing/1000_people_have_middle_names.rb
+++ b/activerecord/test/migrations/missing/1000_people_have_middle_names.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveMiddleNames < ActiveRecord::Migration::Current
def self.up
add_column "people", "middle_name", :string
diff --git a/activerecord/test/migrations/missing/1_people_have_last_names.rb b/activerecord/test/migrations/missing/1_people_have_last_names.rb
index 1480b4b8f3..50fe2a9c8e 100644
--- a/activerecord/test/migrations/missing/1_people_have_last_names.rb
+++ b/activerecord/test/migrations/missing/1_people_have_last_names.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveLastNames < ActiveRecord::Migration::Current
def self.up
add_column "people", "last_name", :string
diff --git a/activerecord/test/migrations/missing/3_we_need_reminders.rb b/activerecord/test/migrations/missing/3_we_need_reminders.rb
index e69296a31f..d7c63ac892 100644
--- a/activerecord/test/migrations/missing/3_we_need_reminders.rb
+++ b/activerecord/test/migrations/missing/3_we_need_reminders.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class WeNeedReminders < ActiveRecord::Migration::Current
def self.up
create_table("reminders") do |t|
diff --git a/activerecord/test/migrations/missing/4_innocent_jointable.rb b/activerecord/test/migrations/missing/4_innocent_jointable.rb
index 0c021c6162..bd3bf21576 100644
--- a/activerecord/test/migrations/missing/4_innocent_jointable.rb
+++ b/activerecord/test/migrations/missing/4_innocent_jointable.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class InnocentJointable < ActiveRecord::Migration::Current
def self.up
create_table("people_reminders", id: false) do |t|
diff --git a/activerecord/test/migrations/rename/1_we_need_things.rb b/activerecord/test/migrations/rename/1_we_need_things.rb
index 411d6f9646..9dce01acfd 100644
--- a/activerecord/test/migrations/rename/1_we_need_things.rb
+++ b/activerecord/test/migrations/rename/1_we_need_things.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class WeNeedThings < ActiveRecord::Migration::Current
def self.up
create_table("things") do |t|
diff --git a/activerecord/test/migrations/rename/2_rename_things.rb b/activerecord/test/migrations/rename/2_rename_things.rb
index 99b1cec7f5..cb8484e7dc 100644
--- a/activerecord/test/migrations/rename/2_rename_things.rb
+++ b/activerecord/test/migrations/rename/2_rename_things.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class RenameThings < ActiveRecord::Migration::Current
def self.up
rename_table "things", "awesome_things"
diff --git a/activerecord/test/migrations/to_copy/1_people_have_hobbies.rb b/activerecord/test/migrations/to_copy/1_people_have_hobbies.rb
index 65b92fbb85..76734bcd7d 100644
--- a/activerecord/test/migrations/to_copy/1_people_have_hobbies.rb
+++ b/activerecord/test/migrations/to_copy/1_people_have_hobbies.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveHobbies < ActiveRecord::Migration::Current
def self.up
add_column "people", "hobbies", :text
diff --git a/activerecord/test/migrations/to_copy/2_people_have_descriptions.rb b/activerecord/test/migrations/to_copy/2_people_have_descriptions.rb
index 7a3bede29a..7f883dbb45 100644
--- a/activerecord/test/migrations/to_copy/2_people_have_descriptions.rb
+++ b/activerecord/test/migrations/to_copy/2_people_have_descriptions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveDescriptions < ActiveRecord::Migration::Current
def self.up
add_column "people", "description", :text
diff --git a/activerecord/test/migrations/to_copy2/1_create_articles.rb b/activerecord/test/migrations/to_copy2/1_create_articles.rb
index 3a82d15aea..2e9f5ec6bc 100644
--- a/activerecord/test/migrations/to_copy2/1_create_articles.rb
+++ b/activerecord/test/migrations/to_copy2/1_create_articles.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class CreateArticles < ActiveRecord::Migration::Current
def self.up
end
diff --git a/activerecord/test/migrations/to_copy2/2_create_comments.rb b/activerecord/test/migrations/to_copy2/2_create_comments.rb
index fb1032f8dd..d361847d4b 100644
--- a/activerecord/test/migrations/to_copy2/2_create_comments.rb
+++ b/activerecord/test/migrations/to_copy2/2_create_comments.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class CreateComments < ActiveRecord::Migration::Current
def self.up
end
diff --git a/activerecord/test/migrations/to_copy_with_name_collision/1_people_have_hobbies.rb b/activerecord/test/migrations/to_copy_with_name_collision/1_people_have_hobbies.rb
index ea106d5be4..1a863367dd 100644
--- a/activerecord/test/migrations/to_copy_with_name_collision/1_people_have_hobbies.rb
+++ b/activerecord/test/migrations/to_copy_with_name_collision/1_people_have_hobbies.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveHobbies < ActiveRecord::Migration::Current
def self.up
add_column "people", "hobbies", :string
diff --git a/activerecord/test/migrations/to_copy_with_timestamps/20090101010101_people_have_hobbies.rb b/activerecord/test/migrations/to_copy_with_timestamps/20090101010101_people_have_hobbies.rb
index 65b92fbb85..76734bcd7d 100644
--- a/activerecord/test/migrations/to_copy_with_timestamps/20090101010101_people_have_hobbies.rb
+++ b/activerecord/test/migrations/to_copy_with_timestamps/20090101010101_people_have_hobbies.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveHobbies < ActiveRecord::Migration::Current
def self.up
add_column "people", "hobbies", :text
diff --git a/activerecord/test/migrations/to_copy_with_timestamps/20090101010202_people_have_descriptions.rb b/activerecord/test/migrations/to_copy_with_timestamps/20090101010202_people_have_descriptions.rb
index 7a3bede29a..7f883dbb45 100644
--- a/activerecord/test/migrations/to_copy_with_timestamps/20090101010202_people_have_descriptions.rb
+++ b/activerecord/test/migrations/to_copy_with_timestamps/20090101010202_people_have_descriptions.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PeopleHaveDescriptions < ActiveRecord::Migration::Current
def self.up
add_column "people", "description", :text
diff --git a/activerecord/test/migrations/to_copy_with_timestamps2/20090101010101_create_articles.rb b/activerecord/test/migrations/to_copy_with_timestamps2/20090101010101_create_articles.rb
index 3a82d15aea..2e9f5ec6bc 100644
--- a/activerecord/test/migrations/to_copy_with_timestamps2/20090101010101_create_articles.rb
+++ b/activerecord/test/migrations/to_copy_with_timestamps2/20090101010101_create_articles.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class CreateArticles < ActiveRecord::Migration::Current
def self.up
end
diff --git a/activerecord/test/migrations/to_copy_with_timestamps2/20090101010202_create_comments.rb b/activerecord/test/migrations/to_copy_with_timestamps2/20090101010202_create_comments.rb
index fb1032f8dd..d361847d4b 100644
--- a/activerecord/test/migrations/to_copy_with_timestamps2/20090101010202_create_comments.rb
+++ b/activerecord/test/migrations/to_copy_with_timestamps2/20090101010202_create_comments.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class CreateComments < ActiveRecord::Migration::Current
def self.up
end
diff --git a/activerecord/test/migrations/valid/1_valid_people_have_last_names.rb b/activerecord/test/migrations/valid/1_valid_people_have_last_names.rb
index 1d2193469c..c450211d8c 100644
--- a/activerecord/test/migrations/valid/1_valid_people_have_last_names.rb
+++ b/activerecord/test/migrations/valid/1_valid_people_have_last_names.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ValidPeopleHaveLastNames < ActiveRecord::Migration::Current
def self.up
add_column "people", "last_name", :string
diff --git a/activerecord/test/migrations/valid/2_we_need_reminders.rb b/activerecord/test/migrations/valid/2_we_need_reminders.rb
index e69296a31f..d7c63ac892 100644
--- a/activerecord/test/migrations/valid/2_we_need_reminders.rb
+++ b/activerecord/test/migrations/valid/2_we_need_reminders.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class WeNeedReminders < ActiveRecord::Migration::Current
def self.up
create_table("reminders") do |t|
diff --git a/activerecord/test/migrations/valid/3_innocent_jointable.rb b/activerecord/test/migrations/valid/3_innocent_jointable.rb
index 0c021c6162..bd3bf21576 100644
--- a/activerecord/test/migrations/valid/3_innocent_jointable.rb
+++ b/activerecord/test/migrations/valid/3_innocent_jointable.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class InnocentJointable < ActiveRecord::Migration::Current
def self.up
create_table("people_reminders", id: false) do |t|
diff --git a/activerecord/test/migrations/valid_with_subdirectories/1_valid_people_have_last_names.rb b/activerecord/test/migrations/valid_with_subdirectories/1_valid_people_have_last_names.rb
index 1d2193469c..c450211d8c 100644
--- a/activerecord/test/migrations/valid_with_subdirectories/1_valid_people_have_last_names.rb
+++ b/activerecord/test/migrations/valid_with_subdirectories/1_valid_people_have_last_names.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ValidPeopleHaveLastNames < ActiveRecord::Migration::Current
def self.up
add_column "people", "last_name", :string
diff --git a/activerecord/test/migrations/valid_with_subdirectories/sub/2_we_need_reminders.rb b/activerecord/test/migrations/valid_with_subdirectories/sub/2_we_need_reminders.rb
index e69296a31f..d7c63ac892 100644
--- a/activerecord/test/migrations/valid_with_subdirectories/sub/2_we_need_reminders.rb
+++ b/activerecord/test/migrations/valid_with_subdirectories/sub/2_we_need_reminders.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class WeNeedReminders < ActiveRecord::Migration::Current
def self.up
create_table("reminders") do |t|
diff --git a/activerecord/test/migrations/valid_with_subdirectories/sub1/3_innocent_jointable.rb b/activerecord/test/migrations/valid_with_subdirectories/sub1/3_innocent_jointable.rb
index 0c021c6162..bd3bf21576 100644
--- a/activerecord/test/migrations/valid_with_subdirectories/sub1/3_innocent_jointable.rb
+++ b/activerecord/test/migrations/valid_with_subdirectories/sub1/3_innocent_jointable.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class InnocentJointable < ActiveRecord::Migration::Current
def self.up
create_table("people_reminders", id: false) do |t|
diff --git a/activerecord/test/migrations/valid_with_timestamps/20100101010101_valid_with_timestamps_people_have_last_names.rb b/activerecord/test/migrations/valid_with_timestamps/20100101010101_valid_with_timestamps_people_have_last_names.rb
index f7ef1a9769..9fd27593f0 100644
--- a/activerecord/test/migrations/valid_with_timestamps/20100101010101_valid_with_timestamps_people_have_last_names.rb
+++ b/activerecord/test/migrations/valid_with_timestamps/20100101010101_valid_with_timestamps_people_have_last_names.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ValidWithTimestampsPeopleHaveLastNames < ActiveRecord::Migration::Current
def self.up
add_column "people", "last_name", :string
diff --git a/activerecord/test/migrations/valid_with_timestamps/20100201010101_valid_with_timestamps_we_need_reminders.rb b/activerecord/test/migrations/valid_with_timestamps/20100201010101_valid_with_timestamps_we_need_reminders.rb
index 7732032c5d..4a59921136 100644
--- a/activerecord/test/migrations/valid_with_timestamps/20100201010101_valid_with_timestamps_we_need_reminders.rb
+++ b/activerecord/test/migrations/valid_with_timestamps/20100201010101_valid_with_timestamps_we_need_reminders.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ValidWithTimestampsWeNeedReminders < ActiveRecord::Migration::Current
def self.up
create_table("reminders") do |t|
diff --git a/activerecord/test/migrations/valid_with_timestamps/20100301010101_valid_with_timestamps_innocent_jointable.rb b/activerecord/test/migrations/valid_with_timestamps/20100301010101_valid_with_timestamps_innocent_jointable.rb
index cf652c008a..be24de6d70 100644
--- a/activerecord/test/migrations/valid_with_timestamps/20100301010101_valid_with_timestamps_innocent_jointable.rb
+++ b/activerecord/test/migrations/valid_with_timestamps/20100301010101_valid_with_timestamps_innocent_jointable.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ValidWithTimestampsInnocentJointable < ActiveRecord::Migration::Current
def self.up
create_table("people_reminders", id: false) do |t|
diff --git a/activerecord/test/migrations/version_check/20131219224947_migration_version_check.rb b/activerecord/test/migrations/version_check/20131219224947_migration_version_check.rb
index ceb0cc98bf..6f314c881c 100644
--- a/activerecord/test/migrations/version_check/20131219224947_migration_version_check.rb
+++ b/activerecord/test/migrations/version_check/20131219224947_migration_version_check.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class MigrationVersionCheck < ActiveRecord::Migration::Current
def self.up
raise "incorrect migration version" unless version == 20131219224947
diff --git a/activerecord/test/models/admin.rb b/activerecord/test/models/admin.rb
index 6c8a6eddb0..bc3ce23447 100644
--- a/activerecord/test/models/admin.rb
+++ b/activerecord/test/models/admin.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module Admin
def self.table_name_prefix
"admin_"
diff --git a/activerecord/test/models/admin/account.rb b/activerecord/test/models/admin/account.rb
index 2dddfa8fe9..bd23192d20 100644
--- a/activerecord/test/models/admin/account.rb
+++ b/activerecord/test/models/admin/account.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Admin::Account < ActiveRecord::Base
has_many :users
end
diff --git a/activerecord/test/models/admin/randomly_named_c1.rb b/activerecord/test/models/admin/randomly_named_c1.rb
index dc1c8c66d7..b64ae7fc41 100644
--- a/activerecord/test/models/admin/randomly_named_c1.rb
+++ b/activerecord/test/models/admin/randomly_named_c1.rb
@@ -1,8 +1,7 @@
-# frozen_string_literal: true
-class Admin::ClassNameThatDoesNotFollowCONVENTIONS1 < ActiveRecord::Base
- self.table_name = :randomly_named_table2
-end
-
-class Admin::ClassNameThatDoesNotFollowCONVENTIONS2 < ActiveRecord::Base
- self.table_name = :randomly_named_table3
-end
+class Admin::ClassNameThatDoesNotFollowCONVENTIONS1 < ActiveRecord::Base
+ self.table_name = :randomly_named_table2
+end
+
+class Admin::ClassNameThatDoesNotFollowCONVENTIONS2 < ActiveRecord::Base
+ self.table_name = :randomly_named_table3
+end
diff --git a/activerecord/test/models/admin/user.rb b/activerecord/test/models/admin/user.rb
index 1157ca266c..a76e4b6795 100644
--- a/activerecord/test/models/admin/user.rb
+++ b/activerecord/test/models/admin/user.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Admin::User < ActiveRecord::Base
class Coder
def initialize(default = {})
diff --git a/activerecord/test/models/aircraft.rb b/activerecord/test/models/aircraft.rb
index 02421afe34..ebd42ff824 100644
--- a/activerecord/test/models/aircraft.rb
+++ b/activerecord/test/models/aircraft.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Aircraft < ActiveRecord::Base
self.pluralize_table_names = false
has_many :engines, foreign_key: "car_id"
diff --git a/activerecord/test/models/arunit2_model.rb b/activerecord/test/models/arunit2_model.rb
index 80a8ecc5d8..04b8b15d3d 100644
--- a/activerecord/test/models/arunit2_model.rb
+++ b/activerecord/test/models/arunit2_model.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ARUnit2Model < ActiveRecord::Base
self.abstract_class = true
end
diff --git a/activerecord/test/models/author.rb b/activerecord/test/models/author.rb
index c3278846d6..2d9cba77e0 100644
--- a/activerecord/test/models/author.rb
+++ b/activerecord/test/models/author.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Author < ActiveRecord::Base
has_many :posts
has_many :serialized_posts
diff --git a/activerecord/test/models/auto_id.rb b/activerecord/test/models/auto_id.rb
index 56479b49eb..82c6544bd5 100644
--- a/activerecord/test/models/auto_id.rb
+++ b/activerecord/test/models/auto_id.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class AutoId < ActiveRecord::Base
self.table_name = "auto_id_tests"
self.primary_key = "auto_id"
diff --git a/activerecord/test/models/autoloadable/extra_firm.rb b/activerecord/test/models/autoloadable/extra_firm.rb
index 54c421e459..5578ba0d9b 100644
--- a/activerecord/test/models/autoloadable/extra_firm.rb
+++ b/activerecord/test/models/autoloadable/extra_firm.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class ExtraFirm < Company
end
diff --git a/activerecord/test/models/binary.rb b/activerecord/test/models/binary.rb
index 4b1212705b..39b2f5090a 100644
--- a/activerecord/test/models/binary.rb
+++ b/activerecord/test/models/binary.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class Binary < ActiveRecord::Base
end
diff --git a/activerecord/test/models/bird.rb b/activerecord/test/models/bird.rb
index ba923b4316..24b839135d 100644
--- a/activerecord/test/models/bird.rb
+++ b/activerecord/test/models/bird.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Bird < ActiveRecord::Base
belongs_to :pirate
validates_presence_of :name
diff --git a/activerecord/test/models/book.rb b/activerecord/test/models/book.rb
index 46d5d94da3..6466e1b341 100644
--- a/activerecord/test/models/book.rb
+++ b/activerecord/test/models/book.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Book < ActiveRecord::Base
belongs_to :author
diff --git a/activerecord/test/models/boolean.rb b/activerecord/test/models/boolean.rb
index e2f1bb8a9a..0da228aac2 100644
--- a/activerecord/test/models/boolean.rb
+++ b/activerecord/test/models/boolean.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Boolean < ActiveRecord::Base
def has_fun
super
diff --git a/activerecord/test/models/bulb.rb b/activerecord/test/models/bulb.rb
index ad9806db55..113d21cb84 100644
--- a/activerecord/test/models/bulb.rb
+++ b/activerecord/test/models/bulb.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Bulb < ActiveRecord::Base
default_scope { where(name: "defaulty") }
belongs_to :car, touch: true
diff --git a/activerecord/test/models/cake_designer.rb b/activerecord/test/models/cake_designer.rb
index 20fa26a556..9c57ef573a 100644
--- a/activerecord/test/models/cake_designer.rb
+++ b/activerecord/test/models/cake_designer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class CakeDesigner < ActiveRecord::Base
has_one :chef, as: :employable
end
diff --git a/activerecord/test/models/car.rb b/activerecord/test/models/car.rb
index 3c3d9295b0..92bff7ff96 100644
--- a/activerecord/test/models/car.rb
+++ b/activerecord/test/models/car.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Car < ActiveRecord::Base
has_many :bulbs
has_many :all_bulbs, -> { unscope where: :name }, class_name: "Bulb"
diff --git a/activerecord/test/models/carrier.rb b/activerecord/test/models/carrier.rb
index bf8055fbd7..230be118c3 100644
--- a/activerecord/test/models/carrier.rb
+++ b/activerecord/test/models/carrier.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class Carrier < ActiveRecord::Base
end
diff --git a/activerecord/test/models/cat.rb b/activerecord/test/models/cat.rb
index 4c76ec86cf..dfdde18641 100644
--- a/activerecord/test/models/cat.rb
+++ b/activerecord/test/models/cat.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Cat < ActiveRecord::Base
self.abstract_class = true
diff --git a/activerecord/test/models/categorization.rb b/activerecord/test/models/categorization.rb
index 87b81e1e2d..b99383d0b1 100644
--- a/activerecord/test/models/categorization.rb
+++ b/activerecord/test/models/categorization.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Categorization < ActiveRecord::Base
belongs_to :post
belongs_to :category, counter_cache: true
diff --git a/activerecord/test/models/category.rb b/activerecord/test/models/category.rb
index 392fe94fe7..4b2840c653 100644
--- a/activerecord/test/models/category.rb
+++ b/activerecord/test/models/category.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Category < ActiveRecord::Base
has_and_belongs_to_many :posts
has_and_belongs_to_many :special_posts, class_name: "Post"
diff --git a/activerecord/test/models/chef.rb b/activerecord/test/models/chef.rb
index daa208ff5f..9d3dd01016 100644
--- a/activerecord/test/models/chef.rb
+++ b/activerecord/test/models/chef.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Chef < ActiveRecord::Base
belongs_to :employable, polymorphic: true
has_many :recipes
diff --git a/activerecord/test/models/citation.rb b/activerecord/test/models/citation.rb
index 8a6c300a28..7d06387f56 100644
--- a/activerecord/test/models/citation.rb
+++ b/activerecord/test/models/citation.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Citation < ActiveRecord::Base
belongs_to :reference_of, class_name: "Book", foreign_key: :book2_id
end
diff --git a/activerecord/test/models/club.rb b/activerecord/test/models/club.rb
index cdd5b37792..49d7b24a3b 100644
--- a/activerecord/test/models/club.rb
+++ b/activerecord/test/models/club.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Club < ActiveRecord::Base
has_one :membership
has_many :memberships, inverse_of: false
diff --git a/activerecord/test/models/college.rb b/activerecord/test/models/college.rb
index 70c0cd1534..c9dbe1ecc2 100644
--- a/activerecord/test/models/college.rb
+++ b/activerecord/test/models/college.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require_dependency "models/arunit2_model"
require "active_support/core_ext/object/with_options"
diff --git a/activerecord/test/models/column.rb b/activerecord/test/models/column.rb
index 08e1a4ae2d..499358b4cf 100644
--- a/activerecord/test/models/column.rb
+++ b/activerecord/test/models/column.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Column < ActiveRecord::Base
belongs_to :record
end
diff --git a/activerecord/test/models/column_name.rb b/activerecord/test/models/column_name.rb
index 3b4452c3c2..460eb4fe20 100644
--- a/activerecord/test/models/column_name.rb
+++ b/activerecord/test/models/column_name.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ColumnName < ActiveRecord::Base
self.table_name = "colnametests"
end
diff --git a/activerecord/test/models/comment.rb b/activerecord/test/models/comment.rb
index 6c10ec0858..eecf923046 100644
--- a/activerecord/test/models/comment.rb
+++ b/activerecord/test/models/comment.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Comment < ActiveRecord::Base
scope :limit_by, lambda { |l| limit(l) }
scope :containing_the_letter_e, -> { where("comments.body LIKE '%e%'") }
diff --git a/activerecord/test/models/company.rb b/activerecord/test/models/company.rb
index 8a6d909188..c6a5bf1c92 100644
--- a/activerecord/test/models/company.rb
+++ b/activerecord/test/models/company.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class AbstractCompany < ActiveRecord::Base
self.abstract_class = true
end
diff --git a/activerecord/test/models/company_in_module.rb b/activerecord/test/models/company_in_module.rb
index 2e7295eed1..0782c1eff4 100644
--- a/activerecord/test/models/company_in_module.rb
+++ b/activerecord/test/models/company_in_module.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/core_ext/object/with_options"
module MyApplication
diff --git a/activerecord/test/models/computer.rb b/activerecord/test/models/computer.rb
index f2998d362a..1c9856e1af 100644
--- a/activerecord/test/models/computer.rb
+++ b/activerecord/test/models/computer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Computer < ActiveRecord::Base
belongs_to :developer, foreign_key: "developer"
end
diff --git a/activerecord/test/models/contact.rb b/activerecord/test/models/contact.rb
index 0a095301bd..47bbbbfd8b 100644
--- a/activerecord/test/models/contact.rb
+++ b/activerecord/test/models/contact.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ContactFakeColumns
def self.extended(base)
base.class_eval do
diff --git a/activerecord/test/models/content.rb b/activerecord/test/models/content.rb
index f2913be22d..68db2127d8 100644
--- a/activerecord/test/models/content.rb
+++ b/activerecord/test/models/content.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Content < ActiveRecord::Base
self.table_name = "content"
has_one :content_position, dependent: :destroy
diff --git a/activerecord/test/models/contract.rb b/activerecord/test/models/contract.rb
index e4bace0e32..32bd581377 100644
--- a/activerecord/test/models/contract.rb
+++ b/activerecord/test/models/contract.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Contract < ActiveRecord::Base
belongs_to :company
belongs_to :developer
diff --git a/activerecord/test/models/country.rb b/activerecord/test/models/country.rb
index 5c1c6dc492..7912719ddd 100644
--- a/activerecord/test/models/country.rb
+++ b/activerecord/test/models/country.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Country < ActiveRecord::Base
self.primary_key = :country_id
diff --git a/activerecord/test/models/course.rb b/activerecord/test/models/course.rb
index 0af33ed85f..348f2bf1e0 100644
--- a/activerecord/test/models/course.rb
+++ b/activerecord/test/models/course.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require_dependency "models/arunit2_model"
class Course < ARUnit2Model
diff --git a/activerecord/test/models/customer.rb b/activerecord/test/models/customer.rb
index 2eb4c720a6..3d40cb1ace 100644
--- a/activerecord/test/models/customer.rb
+++ b/activerecord/test/models/customer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Customer < ActiveRecord::Base
cattr_accessor :gps_conversion_was_run
diff --git a/activerecord/test/models/customer_carrier.rb b/activerecord/test/models/customer_carrier.rb
index 3d236da43d..37186903ff 100644
--- a/activerecord/test/models/customer_carrier.rb
+++ b/activerecord/test/models/customer_carrier.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class CustomerCarrier < ActiveRecord::Base
cattr_accessor :current_customer
diff --git a/activerecord/test/models/dashboard.rb b/activerecord/test/models/dashboard.rb
index fe54e9d6fc..1b3b54545f 100644
--- a/activerecord/test/models/dashboard.rb
+++ b/activerecord/test/models/dashboard.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Dashboard < ActiveRecord::Base
self.primary_key = :dashboard_id
end
diff --git a/activerecord/test/models/default.rb b/activerecord/test/models/default.rb
index 6f87ee74f7..887e9cc999 100644
--- a/activerecord/test/models/default.rb
+++ b/activerecord/test/models/default.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class Default < ActiveRecord::Base
end
diff --git a/activerecord/test/models/department.rb b/activerecord/test/models/department.rb
index e8cdae8976..08004a0ed3 100644
--- a/activerecord/test/models/department.rb
+++ b/activerecord/test/models/department.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Department < ActiveRecord::Base
has_many :chefs
belongs_to :hotel
diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb
index aa7798c582..654830ba11 100644
--- a/activerecord/test/models/developer.rb
+++ b/activerecord/test/models/developer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "ostruct"
module DeveloperProjectsAssociationExtension2
diff --git a/activerecord/test/models/dog.rb b/activerecord/test/models/dog.rb
index 08eeb6b75e..b02b8447b8 100644
--- a/activerecord/test/models/dog.rb
+++ b/activerecord/test/models/dog.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Dog < ActiveRecord::Base
belongs_to :breeder, class_name: "DogLover", counter_cache: :bred_dogs_count
belongs_to :trainer, class_name: "DogLover", counter_cache: :trained_dogs_count
diff --git a/activerecord/test/models/dog_lover.rb b/activerecord/test/models/dog_lover.rb
index 75e43bda8a..2c5be94aea 100644
--- a/activerecord/test/models/dog_lover.rb
+++ b/activerecord/test/models/dog_lover.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class DogLover < ActiveRecord::Base
has_many :trained_dogs, class_name: "Dog", foreign_key: :trainer_id, dependent: :destroy
has_many :bred_dogs, class_name: "Dog", foreign_key: :breeder_id
diff --git a/activerecord/test/models/doubloon.rb b/activerecord/test/models/doubloon.rb
index e18868e022..7272504666 100644
--- a/activerecord/test/models/doubloon.rb
+++ b/activerecord/test/models/doubloon.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class AbstractDoubloon < ActiveRecord::Base
# This has functionality that might be shared by multiple classes.
diff --git a/activerecord/test/models/drink_designer.rb b/activerecord/test/models/drink_designer.rb
index 9de6e3d618..2db968ef11 100644
--- a/activerecord/test/models/drink_designer.rb
+++ b/activerecord/test/models/drink_designer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class DrinkDesigner < ActiveRecord::Base
has_one :chef, as: :employable
end
diff --git a/activerecord/test/models/edge.rb b/activerecord/test/models/edge.rb
index 9711ea6da9..e61d25c9bc 100644
--- a/activerecord/test/models/edge.rb
+++ b/activerecord/test/models/edge.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
# This class models an edge in a directed graph.
class Edge < ActiveRecord::Base
belongs_to :source, class_name: "Vertex", foreign_key: "source_id"
diff --git a/activerecord/test/models/electron.rb b/activerecord/test/models/electron.rb
index 1828d173bb..6fc270673f 100644
--- a/activerecord/test/models/electron.rb
+++ b/activerecord/test/models/electron.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Electron < ActiveRecord::Base
belongs_to :molecule
diff --git a/activerecord/test/models/engine.rb b/activerecord/test/models/engine.rb
index 144bf7159b..eada171f6a 100644
--- a/activerecord/test/models/engine.rb
+++ b/activerecord/test/models/engine.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Engine < ActiveRecord::Base
belongs_to :my_car, class_name: "Car", foreign_key: "car_id", counter_cache: :engines_count
end
diff --git a/activerecord/test/models/entrant.rb b/activerecord/test/models/entrant.rb
index 77095e28c5..4682ce48c8 100644
--- a/activerecord/test/models/entrant.rb
+++ b/activerecord/test/models/entrant.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Entrant < ActiveRecord::Base
belongs_to :course
end
diff --git a/activerecord/test/models/essay.rb b/activerecord/test/models/essay.rb
index 302a862907..1f9772870e 100644
--- a/activerecord/test/models/essay.rb
+++ b/activerecord/test/models/essay.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Essay < ActiveRecord::Base
belongs_to :author
belongs_to :writer, primary_key: :name, polymorphic: true
diff --git a/activerecord/test/models/event.rb b/activerecord/test/models/event.rb
index ac9bc63f34..365ab32b0b 100644
--- a/activerecord/test/models/event.rb
+++ b/activerecord/test/models/event.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Event < ActiveRecord::Base
validates_uniqueness_of :title
end
diff --git a/activerecord/test/models/eye.rb b/activerecord/test/models/eye.rb
index a7410e8aa9..f53c34e4b1 100644
--- a/activerecord/test/models/eye.rb
+++ b/activerecord/test/models/eye.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Eye < ActiveRecord::Base
attr_reader :after_create_callbacks_stack
attr_reader :after_update_callbacks_stack
diff --git a/activerecord/test/models/face.rb b/activerecord/test/models/face.rb
index 3c78bf9284..5913bfa969 100644
--- a/activerecord/test/models/face.rb
+++ b/activerecord/test/models/face.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Face < ActiveRecord::Base
belongs_to :man, inverse_of: :face
belongs_to :polymorphic_man, polymorphic: true, inverse_of: :polymorphic_face
diff --git a/activerecord/test/models/family.rb b/activerecord/test/models/family.rb
index 24bc3cc457..5ae5a78c95 100644
--- a/activerecord/test/models/family.rb
+++ b/activerecord/test/models/family.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Family < ActiveRecord::Base
has_many :family_trees, -> { where(token: nil) }
has_many :members, through: :family_trees
diff --git a/activerecord/test/models/family_tree.rb b/activerecord/test/models/family_tree.rb
index 94a905246a..cd9829fedd 100644
--- a/activerecord/test/models/family_tree.rb
+++ b/activerecord/test/models/family_tree.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class FamilyTree < ActiveRecord::Base
belongs_to :member, class_name: "User", foreign_key: "member_id"
belongs_to :family
diff --git a/activerecord/test/models/friendship.rb b/activerecord/test/models/friendship.rb
index e9ecfe7e25..578382b494 100644
--- a/activerecord/test/models/friendship.rb
+++ b/activerecord/test/models/friendship.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Friendship < ActiveRecord::Base
belongs_to :friend, class_name: "Person"
# friend_too exists to test a bug, and probably shouldn't be used elsewhere
diff --git a/activerecord/test/models/guid.rb b/activerecord/test/models/guid.rb
index 8653b617b1..05653ba498 100644
--- a/activerecord/test/models/guid.rb
+++ b/activerecord/test/models/guid.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class Guid < ActiveRecord::Base
end
diff --git a/activerecord/test/models/guitar.rb b/activerecord/test/models/guitar.rb
index a1a3226272..cd068ff53d 100644
--- a/activerecord/test/models/guitar.rb
+++ b/activerecord/test/models/guitar.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Guitar < ActiveRecord::Base
has_many :tuning_pegs, index_errors: true
accepts_nested_attributes_for :tuning_pegs
diff --git a/activerecord/test/models/hotel.rb b/activerecord/test/models/hotel.rb
index 1d20d17e3b..7bc717c891 100644
--- a/activerecord/test/models/hotel.rb
+++ b/activerecord/test/models/hotel.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Hotel < ActiveRecord::Base
has_many :departments
has_many :chefs, through: :departments
diff --git a/activerecord/test/models/image.rb b/activerecord/test/models/image.rb
index 1efe679022..7ae8e4a7f6 100644
--- a/activerecord/test/models/image.rb
+++ b/activerecord/test/models/image.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Image < ActiveRecord::Base
belongs_to :imageable, foreign_key: :imageable_identifier, foreign_type: :imageable_class
end
diff --git a/activerecord/test/models/interest.rb b/activerecord/test/models/interest.rb
index 10e855be4d..ec79416ee7 100644
--- a/activerecord/test/models/interest.rb
+++ b/activerecord/test/models/interest.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Interest < ActiveRecord::Base
belongs_to :man, inverse_of: :interests
belongs_to :polymorphic_man, polymorphic: true, inverse_of: :polymorphic_interests
diff --git a/activerecord/test/models/invoice.rb b/activerecord/test/models/invoice.rb
index df37e2a9e1..4be5a00193 100644
--- a/activerecord/test/models/invoice.rb
+++ b/activerecord/test/models/invoice.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Invoice < ActiveRecord::Base
has_many :line_items, autosave: true
before_save { |record| record.balance = record.line_items.map(&:amount).sum }
diff --git a/activerecord/test/models/item.rb b/activerecord/test/models/item.rb
index 86a1fc625e..336fb1769a 100644
--- a/activerecord/test/models/item.rb
+++ b/activerecord/test/models/item.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class AbstractItem < ActiveRecord::Base
self.abstract_class = true
has_one :tagging, as: :taggable
diff --git a/activerecord/test/models/job.rb b/activerecord/test/models/job.rb
index 6c4dff4bcd..bbaef2792c 100644
--- a/activerecord/test/models/job.rb
+++ b/activerecord/test/models/job.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Job < ActiveRecord::Base
has_many :references
has_many :people, through: :references
diff --git a/activerecord/test/models/joke.rb b/activerecord/test/models/joke.rb
index 5c2443036a..eeb5818a1f 100644
--- a/activerecord/test/models/joke.rb
+++ b/activerecord/test/models/joke.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Joke < ActiveRecord::Base
self.table_name = "funny_jokes"
end
diff --git a/activerecord/test/models/keyboard.rb b/activerecord/test/models/keyboard.rb
index d179de8e1c..bcede53ec9 100644
--- a/activerecord/test/models/keyboard.rb
+++ b/activerecord/test/models/keyboard.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Keyboard < ActiveRecord::Base
self.primary_key = "key_number"
end
diff --git a/activerecord/test/models/legacy_thing.rb b/activerecord/test/models/legacy_thing.rb
index 948d575bb8..eead181a0e 100644
--- a/activerecord/test/models/legacy_thing.rb
+++ b/activerecord/test/models/legacy_thing.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class LegacyThing < ActiveRecord::Base
self.locking_column = :version
end
diff --git a/activerecord/test/models/lesson.rb b/activerecord/test/models/lesson.rb
index 086ff55b42..4c88153068 100644
--- a/activerecord/test/models/lesson.rb
+++ b/activerecord/test/models/lesson.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class LessonError < Exception
end
diff --git a/activerecord/test/models/line_item.rb b/activerecord/test/models/line_item.rb
index 1ef2eda97a..93f7cceb13 100644
--- a/activerecord/test/models/line_item.rb
+++ b/activerecord/test/models/line_item.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class LineItem < ActiveRecord::Base
belongs_to :invoice, touch: true
end
diff --git a/activerecord/test/models/liquid.rb b/activerecord/test/models/liquid.rb
index 9440292c78..69d4d7df1a 100644
--- a/activerecord/test/models/liquid.rb
+++ b/activerecord/test/models/liquid.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Liquid < ActiveRecord::Base
self.table_name = :liquid
has_many :molecules, -> { distinct }
diff --git a/activerecord/test/models/man.rb b/activerecord/test/models/man.rb
index bf81aa9fc6..d2436a735c 100644
--- a/activerecord/test/models/man.rb
+++ b/activerecord/test/models/man.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Man < ActiveRecord::Base
has_one :face, inverse_of: :man
has_one :polymorphic_face, class_name: "Face", as: :polymorphic_man, inverse_of: :polymorphic_man
diff --git a/activerecord/test/models/matey.rb b/activerecord/test/models/matey.rb
index 00311f78fe..80ee5f47c5 100644
--- a/activerecord/test/models/matey.rb
+++ b/activerecord/test/models/matey.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Matey < ActiveRecord::Base
belongs_to :pirate
belongs_to :target, class_name: "Pirate"
diff --git a/activerecord/test/models/member.rb b/activerecord/test/models/member.rb
index 99a037e0f6..36f2461b84 100644
--- a/activerecord/test/models/member.rb
+++ b/activerecord/test/models/member.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Member < ActiveRecord::Base
has_one :current_membership
has_one :selected_membership
diff --git a/activerecord/test/models/member_detail.rb b/activerecord/test/models/member_detail.rb
index 8311d202da..157130986c 100644
--- a/activerecord/test/models/member_detail.rb
+++ b/activerecord/test/models/member_detail.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class MemberDetail < ActiveRecord::Base
belongs_to :member, inverse_of: false
belongs_to :organization
diff --git a/activerecord/test/models/member_type.rb b/activerecord/test/models/member_type.rb
index 3c159a885a..a13561c72a 100644
--- a/activerecord/test/models/member_type.rb
+++ b/activerecord/test/models/member_type.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class MemberType < ActiveRecord::Base
has_many :members
end
diff --git a/activerecord/test/models/membership.rb b/activerecord/test/models/membership.rb
index bd957f1de8..0f8be0ad85 100644
--- a/activerecord/test/models/membership.rb
+++ b/activerecord/test/models/membership.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Membership < ActiveRecord::Base
enum type: %i(Membership CurrentMembership SuperMembership SelectedMembership TenantMembership)
belongs_to :member
diff --git a/activerecord/test/models/mentor.rb b/activerecord/test/models/mentor.rb
index 9e52d39e46..66504b4e91 100644
--- a/activerecord/test/models/mentor.rb
+++ b/activerecord/test/models/mentor.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Mentor < ActiveRecord::Base
has_many :developers
end
diff --git a/activerecord/test/models/minimalistic.rb b/activerecord/test/models/minimalistic.rb
index c31eea65c9..2e3f8e081a 100644
--- a/activerecord/test/models/minimalistic.rb
+++ b/activerecord/test/models/minimalistic.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class Minimalistic < ActiveRecord::Base
end
diff --git a/activerecord/test/models/minivan.rb b/activerecord/test/models/minivan.rb
index 4d04d808a9..e9b05dadf2 100644
--- a/activerecord/test/models/minivan.rb
+++ b/activerecord/test/models/minivan.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Minivan < ActiveRecord::Base
self.primary_key = :minivan_id
diff --git a/activerecord/test/models/mixed_case_monkey.rb b/activerecord/test/models/mixed_case_monkey.rb
index 552de2c18c..1c35006665 100644
--- a/activerecord/test/models/mixed_case_monkey.rb
+++ b/activerecord/test/models/mixed_case_monkey.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class MixedCaseMonkey < ActiveRecord::Base
belongs_to :man
end
diff --git a/activerecord/test/models/mocktail_designer.rb b/activerecord/test/models/mocktail_designer.rb
index fc9fc4c942..77b44651a3 100644
--- a/activerecord/test/models/mocktail_designer.rb
+++ b/activerecord/test/models/mocktail_designer.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class MocktailDesigner < DrinkDesigner
end
diff --git a/activerecord/test/models/molecule.rb b/activerecord/test/models/molecule.rb
index 8e0f6eb6ee..26870c8f88 100644
--- a/activerecord/test/models/molecule.rb
+++ b/activerecord/test/models/molecule.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Molecule < ActiveRecord::Base
belongs_to :liquid
has_many :electrons
diff --git a/activerecord/test/models/movie.rb b/activerecord/test/models/movie.rb
index fc620656e4..0302abad1e 100644
--- a/activerecord/test/models/movie.rb
+++ b/activerecord/test/models/movie.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Movie < ActiveRecord::Base
self.primary_key = "movieid"
diff --git a/activerecord/test/models/node.rb b/activerecord/test/models/node.rb
index 3422a9ea3a..459ea8cf95 100644
--- a/activerecord/test/models/node.rb
+++ b/activerecord/test/models/node.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Node < ActiveRecord::Base
belongs_to :tree, touch: true
belongs_to :parent, class_name: "Node", touch: true, optional: true
diff --git a/activerecord/test/models/non_primary_key.rb b/activerecord/test/models/non_primary_key.rb
index 4a5fdb88b8..1cafb09608 100644
--- a/activerecord/test/models/non_primary_key.rb
+++ b/activerecord/test/models/non_primary_key.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class NonPrimaryKey < ActiveRecord::Base
end
diff --git a/activerecord/test/models/notification.rb b/activerecord/test/models/notification.rb
index 9e8ce108d5..82edc64b68 100644
--- a/activerecord/test/models/notification.rb
+++ b/activerecord/test/models/notification.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Notification < ActiveRecord::Base
validates_presence_of :message
end
diff --git a/activerecord/test/models/numeric_data.rb b/activerecord/test/models/numeric_data.rb
index 8998495101..c6e025a9ce 100644
--- a/activerecord/test/models/numeric_data.rb
+++ b/activerecord/test/models/numeric_data.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class NumericData < ActiveRecord::Base
self.table_name = "numeric_data"
# Decimal columns with 0 scale being automatically treated as integers
diff --git a/activerecord/test/models/order.rb b/activerecord/test/models/order.rb
index c8693586a0..699be53959 100644
--- a/activerecord/test/models/order.rb
+++ b/activerecord/test/models/order.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Order < ActiveRecord::Base
belongs_to :billing, class_name: "Customer", foreign_key: "billing_customer_id"
belongs_to :shipping, class_name: "Customer", foreign_key: "shipping_customer_id"
diff --git a/activerecord/test/models/organization.rb b/activerecord/test/models/organization.rb
index c08a01994b..462830dadc 100644
--- a/activerecord/test/models/organization.rb
+++ b/activerecord/test/models/organization.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Organization < ActiveRecord::Base
has_many :member_details
has_many :members, through: :member_details
diff --git a/activerecord/test/models/other_dog.rb b/activerecord/test/models/other_dog.rb
index a836d9de1a..418caf34be 100644
--- a/activerecord/test/models/other_dog.rb
+++ b/activerecord/test/models/other_dog.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require_dependency "models/arunit2_model"
class OtherDog < ARUnit2Model
diff --git a/activerecord/test/models/owner.rb b/activerecord/test/models/owner.rb
index f6190fe5af..21fc9b6eb8 100644
--- a/activerecord/test/models/owner.rb
+++ b/activerecord/test/models/owner.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Owner < ActiveRecord::Base
self.primary_key = :owner_id
has_many :pets, -> { order "pets.name desc" }
diff --git a/activerecord/test/models/parrot.rb b/activerecord/test/models/parrot.rb
index 4a027fa0bb..1e5f9285a8 100644
--- a/activerecord/test/models/parrot.rb
+++ b/activerecord/test/models/parrot.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Parrot < ActiveRecord::Base
self.inheritance_column = :parrot_sti_class
diff --git a/activerecord/test/models/person.rb b/activerecord/test/models/person.rb
index c1ea965a6e..18994d6f18 100644
--- a/activerecord/test/models/person.rb
+++ b/activerecord/test/models/person.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Person < ActiveRecord::Base
has_many :readers
has_many :secure_readers
diff --git a/activerecord/test/models/personal_legacy_thing.rb b/activerecord/test/models/personal_legacy_thing.rb
index 1a70aa7e7b..adde7a504a 100644
--- a/activerecord/test/models/personal_legacy_thing.rb
+++ b/activerecord/test/models/personal_legacy_thing.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PersonalLegacyThing < ActiveRecord::Base
self.locking_column = :version
belongs_to :person, counter_cache: true
diff --git a/activerecord/test/models/pet.rb b/activerecord/test/models/pet.rb
index f0d82ddfc9..51a3e42815 100644
--- a/activerecord/test/models/pet.rb
+++ b/activerecord/test/models/pet.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Pet < ActiveRecord::Base
attr_accessor :current_user
diff --git a/activerecord/test/models/pet_treasure.rb b/activerecord/test/models/pet_treasure.rb
index 2d552bf50c..1fe7807ffe 100644
--- a/activerecord/test/models/pet_treasure.rb
+++ b/activerecord/test/models/pet_treasure.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PetTreasure < ActiveRecord::Base
self.table_name = "pets_treasures"
diff --git a/activerecord/test/models/pirate.rb b/activerecord/test/models/pirate.rb
index 21fe1b7847..c532ab426e 100644
--- a/activerecord/test/models/pirate.rb
+++ b/activerecord/test/models/pirate.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Pirate < ActiveRecord::Base
belongs_to :parrot, validate: true
belongs_to :non_validated_parrot, class_name: "Parrot"
diff --git a/activerecord/test/models/possession.rb b/activerecord/test/models/possession.rb
index d8c2a5f21f..0226336c16 100644
--- a/activerecord/test/models/possession.rb
+++ b/activerecord/test/models/possession.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Possession < ActiveRecord::Base
self.table_name = "having"
end
diff --git a/activerecord/test/models/post.rb b/activerecord/test/models/post.rb
index 534ba47c98..ed64e0ee52 100644
--- a/activerecord/test/models/post.rb
+++ b/activerecord/test/models/post.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Post < ActiveRecord::Base
class CategoryPost < ActiveRecord::Base
self.table_name = "categories_posts"
diff --git a/activerecord/test/models/price_estimate.rb b/activerecord/test/models/price_estimate.rb
index abdff640c7..ce086e40a3 100644
--- a/activerecord/test/models/price_estimate.rb
+++ b/activerecord/test/models/price_estimate.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class PriceEstimate < ActiveRecord::Base
belongs_to :estimate_of, polymorphic: true
belongs_to :thing, polymorphic: true
diff --git a/activerecord/test/models/professor.rb b/activerecord/test/models/professor.rb
index 6ec183bb07..4dfb1a9602 100644
--- a/activerecord/test/models/professor.rb
+++ b/activerecord/test/models/professor.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require_dependency "models/arunit2_model"
class Professor < ARUnit2Model
diff --git a/activerecord/test/models/project.rb b/activerecord/test/models/project.rb
index e30f1d729a..4fbd986e40 100644
--- a/activerecord/test/models/project.rb
+++ b/activerecord/test/models/project.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Project < ActiveRecord::Base
belongs_to :mentor
has_and_belongs_to_many :developers, -> { distinct.order "developers.name desc, developers.id desc" }
diff --git a/activerecord/test/models/publisher.rb b/activerecord/test/models/publisher.rb
index 55cf0e42a5..0d4a7f9235 100644
--- a/activerecord/test/models/publisher.rb
+++ b/activerecord/test/models/publisher.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
module Publisher
end
diff --git a/activerecord/test/models/publisher/article.rb b/activerecord/test/models/publisher/article.rb
index 43b88117e0..d73a8eb936 100644
--- a/activerecord/test/models/publisher/article.rb
+++ b/activerecord/test/models/publisher/article.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Publisher::Article < ActiveRecord::Base
has_and_belongs_to_many :magazines
has_and_belongs_to_many :tags
diff --git a/activerecord/test/models/publisher/magazine.rb b/activerecord/test/models/publisher/magazine.rb
index 25e34aca99..82e1a14008 100644
--- a/activerecord/test/models/publisher/magazine.rb
+++ b/activerecord/test/models/publisher/magazine.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Publisher::Magazine < ActiveRecord::Base
has_and_belongs_to_many :articles
end
diff --git a/activerecord/test/models/randomly_named_c1.rb b/activerecord/test/models/randomly_named_c1.rb
index 1cd2ca1bb8..d4be1e13b4 100644
--- a/activerecord/test/models/randomly_named_c1.rb
+++ b/activerecord/test/models/randomly_named_c1.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
-class ClassNameThatDoesNotFollowCONVENTIONS < ActiveRecord::Base
- self.table_name = :randomly_named_table1
-end
+class ClassNameThatDoesNotFollowCONVENTIONS < ActiveRecord::Base
+ self.table_name = :randomly_named_table1
+end
diff --git a/activerecord/test/models/rating.rb b/activerecord/test/models/rating.rb
index 753df20e8d..7420821db0 100644
--- a/activerecord/test/models/rating.rb
+++ b/activerecord/test/models/rating.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Rating < ActiveRecord::Base
belongs_to :comment
has_many :taggings, as: :taggable
diff --git a/activerecord/test/models/reader.rb b/activerecord/test/models/reader.rb
index 05a17eca8b..7c5a159fe0 100644
--- a/activerecord/test/models/reader.rb
+++ b/activerecord/test/models/reader.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Reader < ActiveRecord::Base
belongs_to :post
belongs_to :person, inverse_of: :readers
diff --git a/activerecord/test/models/recipe.rb b/activerecord/test/models/recipe.rb
index 8f81807340..c387230603 100644
--- a/activerecord/test/models/recipe.rb
+++ b/activerecord/test/models/recipe.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Recipe < ActiveRecord::Base
belongs_to :chef
end
diff --git a/activerecord/test/models/record.rb b/activerecord/test/models/record.rb
index 81d5baa6b1..f77ac9fc03 100644
--- a/activerecord/test/models/record.rb
+++ b/activerecord/test/models/record.rb
@@ -1,3 +1,2 @@
-# frozen_string_literal: true
class Record < ActiveRecord::Base
end
diff --git a/activerecord/test/models/reference.rb b/activerecord/test/models/reference.rb
index 5daa48d8ce..e2bb980fed 100644
--- a/activerecord/test/models/reference.rb
+++ b/activerecord/test/models/reference.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Reference < ActiveRecord::Base
belongs_to :person
belongs_to :job
diff --git a/activerecord/test/models/reply.rb b/activerecord/test/models/reply.rb
index f3372e81fd..a2d169292a 100644
--- a/activerecord/test/models/reply.rb
+++ b/activerecord/test/models/reply.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "models/topic"
class Reply < Topic
diff --git a/activerecord/test/models/ship.rb b/activerecord/test/models/ship.rb
index 0ee8da78db..77a7b22315 100644
--- a/activerecord/test/models/ship.rb
+++ b/activerecord/test/models/ship.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Ship < ActiveRecord::Base
self.record_timestamps = false
diff --git a/activerecord/test/models/ship_part.rb b/activerecord/test/models/ship_part.rb
index 67c089a7d0..1a633b8d77 100644
--- a/activerecord/test/models/ship_part.rb
+++ b/activerecord/test/models/ship_part.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ShipPart < ActiveRecord::Base
belongs_to :ship
has_many :trinkets, class_name: "Treasure", as: :looter
diff --git a/activerecord/test/models/shop.rb b/activerecord/test/models/shop.rb
index 819af853ad..f9d23d13b0 100644
--- a/activerecord/test/models/shop.rb
+++ b/activerecord/test/models/shop.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module Shop
class Collection < ActiveRecord::Base
has_many :products, dependent: :nullify
diff --git a/activerecord/test/models/shop_account.rb b/activerecord/test/models/shop_account.rb
index cb00e202f0..1580e8b20c 100644
--- a/activerecord/test/models/shop_account.rb
+++ b/activerecord/test/models/shop_account.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class ShopAccount < ActiveRecord::Base
belongs_to :customer
belongs_to :customer_carrier
diff --git a/activerecord/test/models/speedometer.rb b/activerecord/test/models/speedometer.rb
index b34e3c16fc..497c3aba9a 100644
--- a/activerecord/test/models/speedometer.rb
+++ b/activerecord/test/models/speedometer.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Speedometer < ActiveRecord::Base
self.primary_key = :speedometer_id
belongs_to :dashboard
diff --git a/activerecord/test/models/sponsor.rb b/activerecord/test/models/sponsor.rb
index cfcd1f762a..3f142b25fe 100644
--- a/activerecord/test/models/sponsor.rb
+++ b/activerecord/test/models/sponsor.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Sponsor < ActiveRecord::Base
belongs_to :sponsor_club, class_name: "Club", foreign_key: "club_id"
belongs_to :sponsorable, polymorphic: true
diff --git a/activerecord/test/models/string_key_object.rb b/activerecord/test/models/string_key_object.rb
index 94c7fb7582..f084ec1bdc 100644
--- a/activerecord/test/models/string_key_object.rb
+++ b/activerecord/test/models/string_key_object.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class StringKeyObject < ActiveRecord::Base
self.primary_key = :id
end
diff --git a/activerecord/test/models/student.rb b/activerecord/test/models/student.rb
index 888a0ae481..28a0b6c99b 100644
--- a/activerecord/test/models/student.rb
+++ b/activerecord/test/models/student.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Student < ActiveRecord::Base
has_and_belongs_to_many :lessons
belongs_to :college
diff --git a/activerecord/test/models/subscriber.rb b/activerecord/test/models/subscriber.rb
index 8ef679486d..a820329003 100644
--- a/activerecord/test/models/subscriber.rb
+++ b/activerecord/test/models/subscriber.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Subscriber < ActiveRecord::Base
self.primary_key = "nick"
has_many :subscriptions
diff --git a/activerecord/test/models/subscription.rb b/activerecord/test/models/subscription.rb
index e210836413..1cedf6deae 100644
--- a/activerecord/test/models/subscription.rb
+++ b/activerecord/test/models/subscription.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Subscription < ActiveRecord::Base
belongs_to :subscriber, counter_cache: :books_count
belongs_to :book
diff --git a/activerecord/test/models/tag.rb b/activerecord/test/models/tag.rb
index 6c59dc6183..c907aea10f 100644
--- a/activerecord/test/models/tag.rb
+++ b/activerecord/test/models/tag.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Tag < ActiveRecord::Base
has_many :taggings
has_many :taggables, through: :taggings
diff --git a/activerecord/test/models/tagging.rb b/activerecord/test/models/tagging.rb
index 0060b96f73..f739b4a197 100644
--- a/activerecord/test/models/tagging.rb
+++ b/activerecord/test/models/tagging.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
# test that attr_readonly isn't called on the :taggable polymorphic association
module Taggable
end
diff --git a/activerecord/test/models/task.rb b/activerecord/test/models/task.rb
index 1ab1048bdb..e36989dd56 100644
--- a/activerecord/test/models/task.rb
+++ b/activerecord/test/models/task.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Task < ActiveRecord::Base
def updated_at
ending
diff --git a/activerecord/test/models/topic.rb b/activerecord/test/models/topic.rb
index a74263428b..d9381ac9cf 100644
--- a/activerecord/test/models/topic.rb
+++ b/activerecord/test/models/topic.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Topic < ActiveRecord::Base
scope :base, -> { all }
scope :written_before, lambda { |time|
diff --git a/activerecord/test/models/toy.rb b/activerecord/test/models/toy.rb
index 97b877caea..ddc7048a56 100644
--- a/activerecord/test/models/toy.rb
+++ b/activerecord/test/models/toy.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Toy < ActiveRecord::Base
self.primary_key = :toy_id
belongs_to :pet
diff --git a/activerecord/test/models/traffic_light.rb b/activerecord/test/models/traffic_light.rb
index 595b1cb716..a6b7edb882 100644
--- a/activerecord/test/models/traffic_light.rb
+++ b/activerecord/test/models/traffic_light.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class TrafficLight < ActiveRecord::Base
serialize :state, Array
serialize :long_state, Array
diff --git a/activerecord/test/models/treasure.rb b/activerecord/test/models/treasure.rb
index 3f2162a63d..fb2a5d44e2 100644
--- a/activerecord/test/models/treasure.rb
+++ b/activerecord/test/models/treasure.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Treasure < ActiveRecord::Base
has_and_belongs_to_many :parrots
belongs_to :looter, polymorphic: true
diff --git a/activerecord/test/models/treaty.rb b/activerecord/test/models/treaty.rb
index a6c227c84e..373cd48f71 100644
--- a/activerecord/test/models/treaty.rb
+++ b/activerecord/test/models/treaty.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Treaty < ActiveRecord::Base
self.primary_key = :treaty_id
diff --git a/activerecord/test/models/tree.rb b/activerecord/test/models/tree.rb
index 844c2693ec..dc29cccc9c 100644
--- a/activerecord/test/models/tree.rb
+++ b/activerecord/test/models/tree.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Tree < ActiveRecord::Base
has_many :nodes, dependent: :destroy
end
diff --git a/activerecord/test/models/tuning_peg.rb b/activerecord/test/models/tuning_peg.rb
index 4fee61c565..1252d6dc1d 100644
--- a/activerecord/test/models/tuning_peg.rb
+++ b/activerecord/test/models/tuning_peg.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class TuningPeg < ActiveRecord::Base
belongs_to :guitar
validates_numericality_of :pitch
diff --git a/activerecord/test/models/tyre.rb b/activerecord/test/models/tyre.rb
index 03ba9d3364..e50a21ca68 100644
--- a/activerecord/test/models/tyre.rb
+++ b/activerecord/test/models/tyre.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Tyre < ActiveRecord::Base
belongs_to :car
diff --git a/activerecord/test/models/user.rb b/activerecord/test/models/user.rb
index 3ceacc5e7f..5089a795f4 100644
--- a/activerecord/test/models/user.rb
+++ b/activerecord/test/models/user.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "models/job"
class User < ActiveRecord::Base
diff --git a/activerecord/test/models/uuid_child.rb b/activerecord/test/models/uuid_child.rb
index eaa380ba20..a3d0962ad6 100644
--- a/activerecord/test/models/uuid_child.rb
+++ b/activerecord/test/models/uuid_child.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class UuidChild < ActiveRecord::Base
belongs_to :uuid_parent
end
diff --git a/activerecord/test/models/uuid_item.rb b/activerecord/test/models/uuid_item.rb
index bb152c381a..2353e40213 100644
--- a/activerecord/test/models/uuid_item.rb
+++ b/activerecord/test/models/uuid_item.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class UuidItem < ActiveRecord::Base
end
diff --git a/activerecord/test/models/uuid_parent.rb b/activerecord/test/models/uuid_parent.rb
index f654a964e0..5634f22d0c 100644
--- a/activerecord/test/models/uuid_parent.rb
+++ b/activerecord/test/models/uuid_parent.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class UuidParent < ActiveRecord::Base
has_many :uuid_children
end
diff --git a/activerecord/test/models/vegetables.rb b/activerecord/test/models/vegetables.rb
index c97b6b939d..a4590d06e0 100644
--- a/activerecord/test/models/vegetables.rb
+++ b/activerecord/test/models/vegetables.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Vegetable < ActiveRecord::Base
validates_presence_of :name
diff --git a/activerecord/test/models/vehicle.rb b/activerecord/test/models/vehicle.rb
index 61e18b2e40..855bc4e325 100644
--- a/activerecord/test/models/vehicle.rb
+++ b/activerecord/test/models/vehicle.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Vehicle < ActiveRecord::Base
self.abstract_class = true
default_scope -> { where("tires_count IS NOT NULL") }
diff --git a/activerecord/test/models/vertex.rb b/activerecord/test/models/vertex.rb
index b90f71cec6..3d19433b6f 100644
--- a/activerecord/test/models/vertex.rb
+++ b/activerecord/test/models/vertex.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
# This class models a vertex in a directed graph.
class Vertex < ActiveRecord::Base
has_many :sink_edges, class_name: "Edge", foreign_key: "source_id"
diff --git a/activerecord/test/models/warehouse_thing.rb b/activerecord/test/models/warehouse_thing.rb
index 684af49f2f..f20bd1a245 100644
--- a/activerecord/test/models/warehouse_thing.rb
+++ b/activerecord/test/models/warehouse_thing.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class WarehouseThing < ActiveRecord::Base
self.table_name = "warehouse-things"
diff --git a/activerecord/test/models/wheel.rb b/activerecord/test/models/wheel.rb
index f2fecf9545..cba2b3e518 100644
--- a/activerecord/test/models/wheel.rb
+++ b/activerecord/test/models/wheel.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Wheel < ActiveRecord::Base
belongs_to :wheelable, polymorphic: true, counter_cache: true
end
diff --git a/activerecord/test/models/without_table.rb b/activerecord/test/models/without_table.rb
index 77a471e682..7c0fc286e1 100644
--- a/activerecord/test/models/without_table.rb
+++ b/activerecord/test/models/without_table.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class WithoutTable < ActiveRecord::Base
default_scope -> { where(published: true) }
end
diff --git a/activerecord/test/models/zine.rb b/activerecord/test/models/zine.rb
index 4c72cbb242..3f2b348b46 100644
--- a/activerecord/test/models/zine.rb
+++ b/activerecord/test/models/zine.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
class Zine < ActiveRecord::Base
has_many :interests, inverse_of: :zine
end
diff --git a/activerecord/test/schema/mysql2_specific_schema.rb b/activerecord/test/schema/mysql2_specific_schema.rb
index f55b030ebf..90a314c83c 100644
--- a/activerecord/test/schema/mysql2_specific_schema.rb
+++ b/activerecord/test/schema/mysql2_specific_schema.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
ActiveRecord::Schema.define do
if ActiveRecord::Base.connection.version >= "5.6.0"
diff --git a/activerecord/test/schema/oracle_specific_schema.rb b/activerecord/test/schema/oracle_specific_schema.rb
index 9129981708..264d9b8910 100644
--- a/activerecord/test/schema/oracle_specific_schema.rb
+++ b/activerecord/test/schema/oracle_specific_schema.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
ActiveRecord::Schema.define do
execute "drop table test_oracle_defaults" rescue nil
diff --git a/activerecord/test/schema/postgresql_specific_schema.rb b/activerecord/test/schema/postgresql_specific_schema.rb
index dbf0972b4b..e56e8fa36a 100644
--- a/activerecord/test/schema/postgresql_specific_schema.rb
+++ b/activerecord/test/schema/postgresql_specific_schema.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
ActiveRecord::Schema.define do
enable_extension!("uuid-ossp", ActiveRecord::Base.connection)
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index d4f029ff16..f534e9c00e 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
ActiveRecord::Schema.define do
# ------------------------------------------------------------------- #
# #
diff --git a/activerecord/test/support/config.rb b/activerecord/test/support/config.rb
index e385d7fff7..aaff408b41 100644
--- a/activerecord/test/support/config.rb
+++ b/activerecord/test/support/config.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "yaml"
require "erb"
require "fileutils"
diff --git a/activerecord/test/support/connection.rb b/activerecord/test/support/connection.rb
index 06a037d3d0..1a609e13c3 100644
--- a/activerecord/test/support/connection.rb
+++ b/activerecord/test/support/connection.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
require "active_support/logger"
require "models/college"
require "models/course"
diff --git a/activerecord/test/support/connection_helper.rb b/activerecord/test/support/connection_helper.rb
index 5e37a4a991..4a19e5df44 100644
--- a/activerecord/test/support/connection_helper.rb
+++ b/activerecord/test/support/connection_helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module ConnectionHelper
def run_without_connection
original_connection = ActiveRecord::Base.remove_connection
diff --git a/activerecord/test/support/ddl_helper.rb b/activerecord/test/support/ddl_helper.rb
index 3a07316637..43cb235e01 100644
--- a/activerecord/test/support/ddl_helper.rb
+++ b/activerecord/test/support/ddl_helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module DdlHelper
def with_example_table(connection, table_name, definition = nil)
connection.execute("CREATE TABLE #{table_name}(#{definition})")
diff --git a/activerecord/test/support/schema_dumping_helper.rb b/activerecord/test/support/schema_dumping_helper.rb
index 1a3f67f3ed..666c1b6a14 100644
--- a/activerecord/test/support/schema_dumping_helper.rb
+++ b/activerecord/test/support/schema_dumping_helper.rb
@@ -1,4 +1,3 @@
-# frozen_string_literal: true
module SchemaDumpingHelper
def dump_table_schema(table, connection = ActiveRecord::Base.connection)
old_ignore_tables = ActiveRecord::SchemaDumper.ignore_tables