require "cases/helper" class SchemaDumperTest < ActiveRecord::TestCase def setup super ActiveRecord::SchemaMigration.create_table @stream = StringIO.new end def standard_dump @stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = [] ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, @stream) @stream.string 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) end def test_magic_comment assert_match "# encoding: #{@stream.external_encoding.name}", standard_dump 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 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(/t\.(?:integer|decimal|float|datetime|timestamp|time|date|text|binary|string|boolean)\s+"/) match[0].length end end 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 stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = [/^[^r]/] ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream) output = stream.string assert_match %r{null: false}, output end def test_schema_dump_includes_limit_constraint_for_integer_columns stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = [/^(?!integer_limits)/] ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream) output = stream.string if current_adapter?(:PostgreSQLAdapter) 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?(:MysqlAdapter, :Mysql2Adapter) 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_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 assert_match %r{c_int_without_limit.*}, output assert_no_match %r{c_int_without_limit.*limit:}, output 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{c_int_5.*limit: 8}, output assert_match %r{c_int_6.*limit: 8}, output assert_match %r{c_int_7.*limit: 8}, output assert_match %r{c_int_8.*limit: 8}, output end end def test_schema_dump_with_string_ignored_table stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = ['accounts'] ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream) output = stream.string assert_no_match %r{create_table "accounts"}, output assert_match %r{create_table "authors"}, output assert_no_match %r{create_table "schema_migrations"}, output end def test_schema_dump_with_regexp_ignored_table stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = [/^account/] ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream) output = stream.string assert_no_match %r{create_table "accounts"}, output assert_match %r{create_table "authors"}, output assert_no_match %r{create_table "schema_migrations"}, output end def test_schema_dump_illegal_ignored_table_value stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = [5] assert_raise(StandardError) do ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream) end end def test_schema_dumps_index_columns_in_right_order index_definition = standard_dump.split(/\n/).grep(/add_index.*companies/).first.strip assert_equal 'add_index "companies", ["firm_id", "type", "rating"], name: "company_index"', index_definition end def test_schema_dumps_partial_indices index_definition = standard_dump.split(/\n/).grep(/add_index.*company_partial_index/).first.strip if current_adapter?(:PostgreSQLAdapter) assert_equal 'add_index "companies", ["firm_id", "type"], name: "company_partial_index", where: "(rating > 10)"', index_definition else assert_equal 'add_index "companies", ["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 if current_adapter?(:MysqlAdapter, :Mysql2Adapter) def test_schema_dump_should_not_add_default_value_for_mysql_text_field output = standard_dump assert_match %r{t.text\s+"body",\s+null: false$}, output end def test_schema_dump_includes_length_for_mysql_binary_fields output = standard_dump assert_match %r{t.binary\s+"var_binary",\s+limit: 255$}, output assert_match %r{t.binary\s+"var_binary_large",\s+limit: 4095$}, output end def test_schema_dump_includes_length_for_mysql_blob_and_text_fields output = standard_dump assert_match %r{t.binary\s+"tiny_blob",\s+limit: 255$}, 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: 2147483647$}, output assert_match %r{t.text\s+"tiny_text",\s+limit: 255$}, 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: 2147483647$}, output end end def test_schema_dump_includes_decimal_options stream = StringIO.new ActiveRecord::SchemaDumper.ignore_tables = [/^[^n]/] ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream) output = stream.string assert_match %r{precision: 3,[[:space:]]+scale: 2,[[:space:]]+default: 2.78}, output end if current_adapter?(:PostgreSQLAdapter) def test_schema_dump_includes_extensions connection = ActiveRecord::Base.connection skip unless connection.supports_extensions? connection.stubs(:extensions).returns(['hstore']) output = standard_dump assert_match "# These are extensions that must be enabled", output assert_match %r{enable_extension "hstore"}, output connection.stubs(:extensions).returns([]) output = standard_dump assert_no_match "# These are extensions that must be enabled", output assert_no_match %r{enable_extension}, output end def test_schema_dump_includes_xml_shorthand_definition output = standard_dump if %r{create_table "postgresql_xml_data_type"} =~ output assert_match %r{t.xml "data"}, output end end def test_schema_dump_includes_json_shorthand_definition output = standard_dump if %r{create_table "postgresql_json_data_type"} =~ output assert_match %r|t.json "json_data", default: {}|, output end end def test_schema_dump_includes_inet_shorthand_definition output = standard_dump if %r{create_table "postgresql_network_addresses"} =~ output assert_match %r{t.inet\s+"inet_address",\s+default: "192.168.1.1"}, output end end def test_schema_dump_includes_cidr_shorthand_definition output = standard_dump if %r{create_table "postgresql_network_addresses"} =~ output assert_match %r{t.cidr\s+"cidr_address",\s+default: "192.168.1.0/24"}, output end end def test_schema_dump_includes_macaddr_shorthand_definition output = standard_dump if %r{create_table "postgresql_network_addresses"} =~ output assert_match %r{t.macaddr\s+"mac_address",\s+default: "ff:ff:ff:ff:ff:ff"}, output end end def test_schema_dump_includes_uuid_shorthand_definition output = standard_dump if %r{create_table "poistgresql_uuids"} =~ output assert_match %r{t.uuid "guid"}, output end end def test_schema_dump_includes_hstores_shorthand_definition output = standard_dump if %r{create_table "postgresql_hstores"} =~ output assert_match %r[t.hstore "hash_store", default: {}], output end end def test_schema_dump_includes_ltrees_shorthand_definition output = standard_dump if %r{create_table "postgresql_ltrees"} =~ output assert_match %r[t.ltree "path"], output end end def test_schema_dump_includes_arrays_shorthand_definition output = standard_dump if %r{create_table "postgresql_arrays"} =~ output assert_match %r[t.text\s+"nicknames",\s+array: true], output assert_match %r[t.integer\s+"commission_by_quarter",\s+array: true], output end end def test_schema_dump_includes_tsvector_shorthand_definition output = standard_dump if %r{create_table "postgresql_tsvectors"} =~ output assert_match %r{t.tsvector "text_vector"}, 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,\s+scale: 0}, output else assert_match %r{t.decimal\s+"atoms_in_universe",\s+precision: 55,\s+scale: 0}, 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[[:space:]]+"id",[[:space:]]+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 class CreateDogMigration < ActiveRecord::Migration def up create_table("dogs") do |t| t.column :name, :string end add_index "dogs", [:name] end def down drop_table("dogs") 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 = standard_dump assert_no_match %r{create_table "foo_.+_bar"}, output assert_no_match %r{create_index "foo_.+_bar"}, output assert_no_match %r{create_table "schema_migrations"}, output ensure migration.migrate(:down) ActiveRecord::Base.table_name_suffix = ActiveRecord::Base.table_name_prefix = '' $stdout = original end end