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-rw-r--r--activerecord/test/cases/adapters/postgresql/active_schema_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/array_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/bit_string_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/bytea_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/case_insensitive_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/change_schema_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/cidr_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/citext_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/collation_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/composite_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/connection_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/datatype_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/domain_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/enum_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/explain_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/extension_migration_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/full_text_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/geometric_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/hstore_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/infinity_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/integer_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/json_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/ltree_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/money_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/network_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/numbers_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/prepared_statements_disabled_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/quoting_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/range_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/referential_integrity_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/rename_table_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/schema_authorization_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/schema_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/serial_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/statement_pool_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/timestamp_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/transaction_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/type_lookup_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/utils_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/uuid_test.rb1
-rw-r--r--activerecord/test/cases/adapters/postgresql/xml_test.rb1
42 files changed, 0 insertions, 42 deletions
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"