require "cases/helper" require "support/schema_dumping_helper" class SchemaDumperTest < ActiveRecord::TestCase include SchemaDumpingHelper self.use_transactional_tests = false setup do ActiveRecord::SchemaMigration.create_table end def standard_dump @@standard_dump ||= perform_schema_dump end def perform_schema_dump dump_all_table_schema [] end def test_dump_schema_information_outputs_lexically_ordered_versions versions = %w{ 20100101010101 20100201010101 20100301010101 } versions.reverse_each do |v| ActiveRecord::SchemaMigration.create!(version: v) end schema_info = ActiveRecord::Base.connection.dump_schema_information assert_match(/20100201010101.*20100301010101/m, schema_info) ensure ActiveRecord::SchemaMigration.delete_all end if current_adapter?(:SQLite3Adapter) %w{3.7.8 3.7.11 3.7.12}.each do |version_string| test "dumps schema version for sqlite version #{version_string}" do version = ActiveRecord::ConnectionAdapters::SQLite3Adapter::Version.new(version_string) ActiveRecord::Base.connection.stubs(:sqlite_version).returns(version) versions = %w{ 20100101010101 20100201010101 20100301010101 } versions.reverse_each do |v| ActiveRecord::SchemaMigration.create!(version: v) end schema_info = ActiveRecord::Base.connection.dump_schema_information assert_match(/20100201010101.*20100301010101/m, schema_info) ActiveRecord::SchemaMigration.delete_all end end end def test_schema_dump output = standard_dump assert_match %r{create_table "accounts"}, output assert_match %r{create_table "authors"}, output assert_no_match %r{create_table "schema_migrations"}, output assert_no_match %r{create_table "ar_internal_metadata"}, output end def test_schema_dump_uses_force_cascade_on_create_table output = dump_table_schema "authors" assert_match %r{create_table "authors", force: :cascade}, output end def test_schema_dump_excludes_sqlite_sequence output = standard_dump assert_no_match %r{create_table "sqlite_sequence"}, output end def test_schema_dump_includes_camelcase_table_name output = standard_dump assert_match %r{create_table "CamelCase"}, output end def assert_line_up(lines, pattern, required = false) return assert(true) if lines.empty? matches = lines.map { |line| line.match(pattern) } assert matches.all? if required matches.compact! return assert(true) if matches.empty? assert_equal 1, matches.map { |match| match.offset(0).first }.uniq.length end def column_definition_lines(output = standard_dump) output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map { |m| m.last.split(/\n/) } end def test_types_line_up column_definition_lines.each do |column_set| next if column_set.empty? lengths = column_set.map do |column| if match = column.match(/\bt\.\w+\s+(?="\w+?")/) match[0].length end end.compact assert_equal 1, lengths.uniq.length end end def test_arguments_line_up column_definition_lines.each do |column_set| assert_line_up(column_set, /default: /) assert_line_up(column_set, /limit: /) assert_line_up(column_set, /null: /) end end def test_no_dump_errors output = standard_dump assert_no_match %r{\# Could not dump table}, output end def test_schema_dump_includes_not_null_columns output = dump_all_table_schema([/^[^r]/]) assert_match %r{null: false}, output end def test_schema_dump_includes_limit_constraint_for_integer_columns output = dump_all_table_schema([/^(?!integer_limits)/]) assert_match %r{c_int_without_limit}, output if current_adapter?(:PostgreSQLAdapter) assert_no_match %r{c_int_without_limit.*limit:}, output assert_match %r{c_int_1.*limit: 2}, output assert_match %r{c_int_2.*limit: 2}, output # int 3 is 4 bytes in postgresql assert_match %r{c_int_3.*}, output assert_no_match %r{c_int_3.*limit:}, output assert_match %r{c_int_4.*}, output assert_no_match %r{c_int_4.*limit:}, output elsif current_adapter?(:Mysql2Adapter) assert_match %r{c_int_without_limit"$}, output assert_match %r{c_int_1.*limit: 1}, output assert_match %r{c_int_2.*limit: 2}, output assert_match %r{c_int_3.*limit: 3}, output assert_match %r{c_int_4.*}, output assert_no_match %r{c_int_4.*:limit}, output elsif current_adapter?(:SQLite3Adapter) assert_no_match %r{c_int_without_limit.*limit:}, output assert_match %r{c_int_1.*limit: 1}, output assert_match %r{c_int_2.*limit: 2}, output assert_match %r{c_int_3.*limit: 3}, output assert_match %r{c_int_4.*limit: 4}, output end if current_adapter?(:SQLite3Adapter) assert_match %r{c_int_5.*limit: 5}, output assert_match %r{c_int_6.*limit: 6}, output assert_match %r{c_int_7.*limit: 7}, output assert_match %r{c_int_8.*limit: 8}, output elsif current_adapter?(:OracleAdapter) assert_match %r{c_int_5.*limit: 5}, output assert_match %r{c_int_6.*limit: 6}, output assert_match %r{c_int_7.*limit: 7}, output assert_match %r{c_int_8.*limit: 8}, output else assert_match %r{t\.bigint\s+"c_int_5"$}, output assert_match %r{t\.bigint\s+"c_int_6"$}, output assert_match %r{t\.bigint\s+"c_int_7"$}, output assert_match %r{t\.bigint\s+"c_int_8"$}, output end end def test_schema_dump_with_string_ignored_table output = dump_all_table_schema(["accounts"]) assert_no_match %r{create_table "accounts"}, output assert_match %r{create_table "authors"}, output assert_no_match %r{create_table "schema_migrations"}, output assert_no_match %r{create_table "ar_internal_metadata"}, output end def test_schema_dump_with_regexp_ignored_table output = dump_all_table_schema([/^account/]) assert_no_match %r{create_table "accounts"}, output assert_match %r{create_table "authors"}, output assert_no_match %r{create_table "schema_migrations"}, output assert_no_match %r{create_table "ar_internal_metadata"}, output end def test_schema_dumps_index_columns_in_right_order index_definition = standard_dump.split(/\n/).grep(/t\.index.*company_index/).first.strip if current_adapter?(:Mysql2Adapter, :PostgreSQLAdapter) assert_equal 't.index ["firm_id", "type", "rating"], name: "company_index", using: :btree', index_definition else assert_equal 't.index ["firm_id", "type", "rating"], name: "company_index"', index_definition end end def test_schema_dumps_partial_indices index_definition = standard_dump.split(/\n/).grep(/t\.index.*company_partial_index/).first.strip if current_adapter?(:PostgreSQLAdapter) assert_equal 't.index ["firm_id", "type"], name: "company_partial_index", where: "(rating > 10)", using: :btree', index_definition elsif current_adapter?(:Mysql2Adapter) assert_equal 't.index ["firm_id", "type"], name: "company_partial_index", using: :btree', index_definition elsif current_adapter?(:SQLite3Adapter) && ActiveRecord::Base.connection.supports_partial_index? assert_equal 't.index ["firm_id", "type"], name: "company_partial_index", where: "rating > 10"', index_definition else assert_equal 't.index ["firm_id", "type"], name: "company_partial_index"', index_definition end end def test_schema_dump_should_honor_nonstandard_primary_keys output = standard_dump match = output.match(%r{create_table "movies"(.*)do}) assert_not_nil(match, "nonstandardpk table not found") assert_match %r(primary_key: "movieid"), match[1], "non-standard primary key not preserved" end def test_schema_dump_should_use_false_as_default output = standard_dump assert_match %r{t\.boolean\s+"has_fun",.+default: false}, output end def test_schema_dump_does_not_include_limit_for_text_field output = standard_dump assert_match %r{t\.text\s+"params"$}, output end def test_schema_dump_does_not_include_limit_for_binary_field output = standard_dump assert_match %r{t\.binary\s+"data"$}, output end if current_adapter?(:Mysql2Adapter) def test_schema_dump_includes_length_for_mysql_binary_fields output = standard_dump assert_match %r{t\.binary\s+"var_binary",\s+limit: 255$}, output assert_match %r{t\.binary\s+"var_binary_large",\s+limit: 4095$}, output end def test_schema_dump_includes_length_for_mysql_blob_and_text_fields output = standard_dump assert_match %r{t\.blob\s+"tiny_blob",\s+limit: 255$}, output assert_match %r{t\.binary\s+"normal_blob"$}, output assert_match %r{t\.binary\s+"medium_blob",\s+limit: 16777215$}, output assert_match %r{t\.binary\s+"long_blob",\s+limit: 4294967295$}, output assert_match %r{t\.text\s+"tiny_text",\s+limit: 255$}, output assert_match %r{t\.text\s+"normal_text"$}, output assert_match %r{t\.text\s+"medium_text",\s+limit: 16777215$}, output assert_match %r{t\.text\s+"long_text",\s+limit: 4294967295$}, output end def test_schema_does_not_include_limit_for_emulated_mysql_boolean_fields output = standard_dump assert_no_match %r{t\.boolean\s+"has_fun",.+limit: 1}, output end def test_schema_dumps_index_type output = standard_dump assert_match %r{t\.index \["awesome"\], name: "index_key_tests_on_awesome", type: :fulltext}, output assert_match %r{t\.index \["pizza"\], name: "index_key_tests_on_pizza", using: :btree}, output end end def test_schema_dump_includes_decimal_options output = dump_all_table_schema([/^[^n]/]) assert_match %r{precision: 3,[[:space:]]+scale: 2,[[:space:]]+default: "2\.78"}, output end if current_adapter?(:PostgreSQLAdapter) def test_schema_dump_includes_bigint_default output = standard_dump assert_match %r{t\.bigint\s+"bigint_default",\s+default: 0}, output end def test_schema_dump_includes_limit_on_array_type output = standard_dump assert_match %r{t\.bigint\s+"big_int_data_points\",\s+array: true}, output end def test_schema_dump_allows_array_of_decimal_defaults output = standard_dump assert_match %r{t\.decimal\s+"decimal_array_default",\s+default: \["1.23", "3.45"\],\s+array: true}, output end def test_schema_dump_expression_indices index_definition = standard_dump.split(/\n/).grep(/t\.index.*company_expression_index/).first.strip assert_equal 't.index "lower((name)::text)", name: "company_expression_index", using: :btree', index_definition end if ActiveRecord::Base.connection.supports_extensions? def test_schema_dump_includes_extensions connection = ActiveRecord::Base.connection connection.stubs(:extensions).returns(["hstore"]) output = perform_schema_dump assert_match "# These are extensions that must be enabled", output assert_match %r{enable_extension "hstore"}, output connection.stubs(:extensions).returns([]) output = perform_schema_dump assert_no_match "# These are extensions that must be enabled", output assert_no_match %r{enable_extension}, output end end end def test_schema_dump_keeps_large_precision_integer_columns_as_decimal output = standard_dump # Oracle supports precision up to 38 and it identifies decimals with scale 0 as integers if current_adapter?(:OracleAdapter) assert_match %r{t\.integer\s+"atoms_in_universe",\s+precision: 38}, output elsif current_adapter?(:FbAdapter) assert_match %r{t\.integer\s+"atoms_in_universe",\s+precision: 18}, output else assert_match %r{t\.decimal\s+"atoms_in_universe",\s+precision: 55}, output end end def test_schema_dump_keeps_id_column_when_id_is_false_and_id_column_added output = standard_dump match = output.match(%r{create_table "goofy_string_id"(.*)do.*\n(.*)\n}) assert_not_nil(match, "goofy_string_id table not found") assert_match %r(id: false), match[1], "no table id not preserved" assert_match %r{t\.string\s+"id",.*?null: false$}, match[2], "non-primary key id column not preserved" end def test_schema_dump_keeps_id_false_when_id_is_false_and_unique_not_null_column_added output = standard_dump assert_match %r{create_table "subscribers", id: false}, output end if ActiveRecord::Base.connection.supports_foreign_keys? def test_foreign_keys_are_dumped_at_the_bottom_to_circumvent_dependency_issues output = standard_dump assert_match(/^\s+add_foreign_key "fk_test_has_fk"[^\n]+\n\s+add_foreign_key "lessons_students"/, output) end def test_do_not_dump_foreign_keys_for_ignored_tables output = dump_table_schema "authors" assert_equal ["authors"], output.scan(/^\s*add_foreign_key "([^"]+)".+$/).flatten end end class CreateDogMigration < ActiveRecord::Migration::Current def up create_table("dog_owners") do |t| end create_table("dogs") do |t| t.column :name, :string t.column :owner_id, :integer t.index [:name] t.foreign_key :dog_owners, column: "owner_id" if supports_foreign_keys? end end def down drop_table("dogs") drop_table("dog_owners") end end def test_schema_dump_with_table_name_prefix_and_suffix original, $stdout = $stdout, StringIO.new ActiveRecord::Base.table_name_prefix = "foo_" ActiveRecord::Base.table_name_suffix = "_bar" migration = CreateDogMigration.new migration.migrate(:up) output = perform_schema_dump assert_no_match %r{create_table "foo_.+_bar"}, output assert_no_match %r{add_index "foo_.+_bar"}, output assert_no_match %r{create_table "schema_migrations"}, output assert_no_match %r{create_table "ar_internal_metadata"}, output if ActiveRecord::Base.connection.supports_foreign_keys? assert_no_match %r{add_foreign_key "foo_.+_bar"}, output assert_no_match %r{add_foreign_key "[^"]+", "foo_.+_bar"}, output end ensure migration.migrate(:down) ActiveRecord::Base.table_name_suffix = ActiveRecord::Base.table_name_prefix = "" $stdout = original end def test_schema_dump_with_table_name_prefix_and_ignoring_tables original, $stdout = $stdout, StringIO.new create_cat_migration = Class.new(ActiveRecord::Migration::Current) do def change create_table("cats") do |t| end create_table("omg_cats") do |t| end end end original_table_name_prefix = ActiveRecord::Base.table_name_prefix original_schema_dumper_ignore_tables = ActiveRecord::SchemaDumper.ignore_tables ActiveRecord::Base.table_name_prefix = "omg_" ActiveRecord::SchemaDumper.ignore_tables = ["cats"] migration = create_cat_migration.new migration.migrate(:up) stream = StringIO.new output = ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream).string assert_match %r{create_table "omg_cats"}, output refute_match %r{create_table "cats"}, output ensure migration.migrate(:down) ActiveRecord::Base.table_name_prefix = original_table_name_prefix ActiveRecord::SchemaDumper.ignore_tables = original_schema_dumper_ignore_tables $stdout = original end end class SchemaDumperDefaultsTest < ActiveRecord::TestCase include SchemaDumpingHelper setup do @connection = ActiveRecord::Base.connection @connection.create_table :defaults, force: true do |t| t.string :string_with_default, default: "Hello!" t.date :date_with_default, default: "2014-06-05" t.datetime :datetime_with_default, default: "2014-06-05 07:17:04" t.time :time_with_default, default: "07:17:04" end end teardown do return unless @connection @connection.drop_table "defaults", if_exists: true end def test_schema_dump_defaults_with_universally_supported_types output = dump_table_schema("defaults") assert_match %r{t\.string\s+"string_with_default",.*?default: "Hello!"}, output assert_match %r{t\.date\s+"date_with_default",\s+default: '2014-06-05'}, output assert_match %r{t\.datetime\s+"datetime_with_default",\s+default: '2014-06-05 07:17:04'}, output assert_match %r{t\.time\s+"time_with_default",\s+default: '2000-01-01 07:17:04'}, output end end