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1745e905a3
In MySQL, the text column size is 65,535 bytes by default (1 GiB in PostgreSQL). It is sometimes too short when people want to use a text column, so they sometimes change the text size to mediumtext (16 MiB) or longtext (4 GiB) by giving the `limit` option. Unlike MySQL, PostgreSQL doesn't allow the `limit` option for a text column (raises ERROR: type modifier is not allowed for type "text"). So `limit: 4294967295` (longtext) couldn't be used in Action Text. I've allowed changing text and blob size without giving the `limit` option, it prevents that migration failure on PostgreSQL.
527 lines
20 KiB
Ruby
527 lines
20 KiB
Ruby
# frozen_string_literal: true
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require "cases/helper"
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require "support/schema_dumping_helper"
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class SchemaDumperTest < ActiveRecord::TestCase
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include SchemaDumpingHelper
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self.use_transactional_tests = false
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setup do
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ActiveRecord::SchemaMigration.create_table
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end
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def standard_dump
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@@standard_dump ||= perform_schema_dump
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end
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def perform_schema_dump
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dump_all_table_schema []
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end
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def test_dump_schema_information_with_empty_versions
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ActiveRecord::SchemaMigration.delete_all
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schema_info = ActiveRecord::Base.connection.dump_schema_information
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assert_no_match(/INSERT INTO/, schema_info)
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end
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def test_dump_schema_information_outputs_lexically_ordered_versions
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versions = %w{ 20100101010101 20100201010101 20100301010101 }
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versions.reverse_each do |v|
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ActiveRecord::SchemaMigration.create!(version: v)
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end
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schema_info = ActiveRecord::Base.connection.dump_schema_information
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assert_match(/20100201010101.*20100301010101/m, schema_info)
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ensure
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ActiveRecord::SchemaMigration.delete_all
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end
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def test_schema_dump
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output = standard_dump
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assert_match %r{create_table "accounts"}, output
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assert_match %r{create_table "authors"}, output
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assert_no_match %r{(?<=, ) do \|t\|}, output
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assert_no_match %r{create_table "schema_migrations"}, output
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assert_no_match %r{create_table "ar_internal_metadata"}, output
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end
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def test_schema_dump_uses_force_cascade_on_create_table
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output = dump_table_schema "authors"
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assert_match %r{create_table "authors",.* force: :cascade}, output
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end
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def test_schema_dump_excludes_sqlite_sequence
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output = standard_dump
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assert_no_match %r{create_table "sqlite_sequence"}, output
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end
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def test_schema_dump_includes_camelcase_table_name
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output = standard_dump
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assert_match %r{create_table "CamelCase"}, output
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end
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def assert_no_line_up(lines, pattern)
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return assert(true) if lines.empty?
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matches = lines.map { |line| line.match(pattern) }
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matches.compact!
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return assert(true) if matches.empty?
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line_matches = lines.map { |line| [line, line.match(pattern)] }.select { |line, match| match }
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assert line_matches.all? { |line, match|
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start = match.offset(0).first
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line[start - 2..start - 1] == ", "
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}
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end
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def column_definition_lines(output = standard_dump)
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output.scan(/^( *)create_table.*?\n(.*?)^\1end/m).map { |m| m.last.split(/\n/) }
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end
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def test_types_no_line_up
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column_definition_lines.each do |column_set|
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next if column_set.empty?
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assert column_set.all? { |column| !column.match(/\bt\.\w+\s{2,}/) }
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end
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end
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def test_arguments_no_line_up
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column_definition_lines.each do |column_set|
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assert_no_line_up(column_set, /default: /)
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assert_no_line_up(column_set, /limit: /)
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assert_no_line_up(column_set, /null: /)
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end
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end
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def test_no_dump_errors
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output = standard_dump
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assert_no_match %r{\# Could not dump table}, output
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end
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def test_schema_dump_includes_not_null_columns
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output = dump_all_table_schema([/^[^r]/])
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assert_match %r{null: false}, output
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end
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def test_schema_dump_includes_limit_constraint_for_integer_columns
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output = dump_all_table_schema([/^(?!integer_limits)/])
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assert_match %r{"c_int_without_limit"(?!.*limit)}, output
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if current_adapter?(:PostgreSQLAdapter)
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assert_match %r{c_int_1.*limit: 2}, output
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assert_match %r{c_int_2.*limit: 2}, output
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# int 3 is 4 bytes in postgresql
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assert_match %r{"c_int_3"(?!.*limit)}, output
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assert_match %r{"c_int_4"(?!.*limit)}, output
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elsif current_adapter?(:Mysql2Adapter)
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assert_match %r{c_int_1.*limit: 1}, output
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assert_match %r{c_int_2.*limit: 2}, output
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assert_match %r{c_int_3.*limit: 3}, output
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assert_match %r{"c_int_4"(?!.*limit)}, output
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elsif current_adapter?(:SQLite3Adapter)
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assert_match %r{c_int_1.*limit: 1}, output
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assert_match %r{c_int_2.*limit: 2}, output
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assert_match %r{c_int_3.*limit: 3}, output
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assert_match %r{c_int_4.*limit: 4}, output
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end
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if current_adapter?(:SQLite3Adapter, :OracleAdapter)
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assert_match %r{c_int_5.*limit: 5}, output
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assert_match %r{c_int_6.*limit: 6}, output
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assert_match %r{c_int_7.*limit: 7}, output
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assert_match %r{c_int_8.*limit: 8}, output
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else
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assert_match %r{t\.bigint\s+"c_int_5"$}, output
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assert_match %r{t\.bigint\s+"c_int_6"$}, output
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assert_match %r{t\.bigint\s+"c_int_7"$}, output
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assert_match %r{t\.bigint\s+"c_int_8"$}, output
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end
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end
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def test_schema_dump_with_string_ignored_table
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output = dump_all_table_schema(["accounts"])
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assert_no_match %r{create_table "accounts"}, output
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assert_match %r{create_table "authors"}, output
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assert_no_match %r{create_table "schema_migrations"}, output
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assert_no_match %r{create_table "ar_internal_metadata"}, output
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end
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def test_schema_dump_with_regexp_ignored_table
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output = dump_all_table_schema([/^account/])
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assert_no_match %r{create_table "accounts"}, output
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assert_match %r{create_table "authors"}, output
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assert_no_match %r{create_table "schema_migrations"}, output
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assert_no_match %r{create_table "ar_internal_metadata"}, output
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end
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def test_schema_dumps_index_columns_in_right_order
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index_definition = dump_table_schema("companies").split(/\n/).grep(/t\.index.*company_index/).first.strip
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if current_adapter?(:Mysql2Adapter)
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if ActiveRecord::Base.connection.supports_index_sort_order?
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assert_equal 't.index ["firm_id", "type", "rating"], name: "company_index", length: { type: 10 }, order: { rating: :desc }', index_definition
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else
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assert_equal 't.index ["firm_id", "type", "rating"], name: "company_index", length: { type: 10 }', index_definition
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end
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elsif ActiveRecord::Base.connection.supports_index_sort_order?
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assert_equal 't.index ["firm_id", "type", "rating"], name: "company_index", order: { rating: :desc }', index_definition
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else
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assert_equal 't.index ["firm_id", "type", "rating"], name: "company_index"', index_definition
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end
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end
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def test_schema_dumps_partial_indices
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index_definition = dump_table_schema("companies").split(/\n/).grep(/t\.index.*company_partial_index/).first.strip
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if ActiveRecord::Base.connection.supports_partial_index?
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assert_equal 't.index ["firm_id", "type"], name: "company_partial_index", where: "(rating > 10)"', index_definition
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else
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assert_equal 't.index ["firm_id", "type"], name: "company_partial_index"', index_definition
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end
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end
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def test_schema_dumps_index_sort_order
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index_definition = dump_table_schema("companies").split(/\n/).grep(/t\.index.*_name_and_rating/).first.strip
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if ActiveRecord::Base.connection.supports_index_sort_order?
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assert_equal 't.index ["name", "rating"], name: "index_companies_on_name_and_rating", order: :desc', index_definition
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else
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assert_equal 't.index ["name", "rating"], name: "index_companies_on_name_and_rating"', index_definition
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end
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end
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def test_schema_dumps_index_length
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index_definition = dump_table_schema("companies").split(/\n/).grep(/t\.index.*_name_and_description/).first.strip
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if current_adapter?(:Mysql2Adapter)
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assert_equal 't.index ["name", "description"], name: "index_companies_on_name_and_description", length: 10', index_definition
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else
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assert_equal 't.index ["name", "description"], name: "index_companies_on_name_and_description"', index_definition
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end
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end
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def test_schema_dump_should_honor_nonstandard_primary_keys
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output = standard_dump
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match = output.match(%r{create_table "movies"(.*)do})
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assert_not_nil(match, "nonstandardpk table not found")
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assert_match %r(primary_key: "movieid"), match[1], "non-standard primary key not preserved"
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end
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def test_schema_dump_should_use_false_as_default
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output = dump_table_schema "booleans"
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assert_match %r{t\.boolean\s+"has_fun",.+default: false}, output
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end
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def test_schema_dump_does_not_include_limit_for_text_field
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output = dump_table_schema "admin_users"
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assert_match %r{t\.text\s+"params"$}, output
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end
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def test_schema_dump_does_not_include_limit_for_binary_field
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output = dump_table_schema "binaries"
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assert_match %r{t\.binary\s+"data"$}, output
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end
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def test_schema_dump_does_not_include_limit_for_float_field
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output = dump_table_schema "numeric_data"
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assert_match %r{t\.float\s+"temperature"$}, output
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end
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if ActiveRecord::Base.connection.supports_expression_index?
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def test_schema_dump_expression_indices
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index_definition = dump_table_schema("companies").split(/\n/).grep(/t\.index.*company_expression_index/).first.strip
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index_definition.sub!(/, name: "company_expression_index"\z/, "")
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if current_adapter?(:PostgreSQLAdapter)
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assert_match %r{CASE.+lower\(\(name\)::text\).+END\) DESC"\z}i, index_definition
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elsif current_adapter?(:Mysql2Adapter)
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assert_match %r{CASE.+lower\(`name`\).+END\) DESC"\z}i, index_definition
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elsif current_adapter?(:SQLite3Adapter)
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assert_match %r{CASE.+lower\(name\).+END\) DESC"\z}i, index_definition
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else
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assert false
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end
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end
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end
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if current_adapter?(:Mysql2Adapter)
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def test_schema_dump_includes_length_for_mysql_binary_fields
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output = dump_table_schema "binary_fields"
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assert_match %r{t\.binary\s+"var_binary",\s+limit: 255$}, output
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assert_match %r{t\.binary\s+"var_binary_large",\s+limit: 4095$}, output
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end
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def test_schema_dump_includes_length_for_mysql_blob_and_text_fields
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output = dump_table_schema "binary_fields"
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assert_match %r{t\.binary\s+"tiny_blob",\s+size: :tiny$}, output
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assert_match %r{t\.binary\s+"normal_blob"$}, output
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assert_match %r{t\.binary\s+"medium_blob",\s+size: :medium$}, output
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assert_match %r{t\.binary\s+"long_blob",\s+size: :long$}, output
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assert_match %r{t\.text\s+"tiny_text",\s+size: :tiny$}, output
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assert_match %r{t\.text\s+"normal_text"$}, output
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assert_match %r{t\.text\s+"medium_text",\s+size: :medium$}, output
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assert_match %r{t\.text\s+"long_text",\s+size: :long$}, output
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assert_match %r{t\.binary\s+"tiny_blob_2",\s+size: :tiny$}, output
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assert_match %r{t\.binary\s+"medium_blob_2",\s+size: :medium$}, output
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assert_match %r{t\.binary\s+"long_blob_2",\s+size: :long$}, output
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assert_match %r{t\.text\s+"tiny_text_2",\s+size: :tiny$}, output
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assert_match %r{t\.text\s+"medium_text_2",\s+size: :medium$}, output
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assert_match %r{t\.text\s+"long_text_2",\s+size: :long$}, output
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end
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def test_schema_does_not_include_limit_for_emulated_mysql_boolean_fields
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output = dump_table_schema "booleans"
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assert_no_match %r{t\.boolean\s+"has_fun",.+limit: 1}, output
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end
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def test_schema_dumps_index_type
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output = dump_table_schema "key_tests"
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assert_match %r{t\.index \["awesome"\], name: "index_key_tests_on_awesome", type: :fulltext$}, output
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assert_match %r{t\.index \["pizza"\], name: "index_key_tests_on_pizza"$}, output
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end
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end
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def test_schema_dump_includes_decimal_options
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output = dump_all_table_schema([/^[^n]/])
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assert_match %r{precision: 3,[[:space:]]+scale: 2,[[:space:]]+default: "2\.78"}, output
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end
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if current_adapter?(:PostgreSQLAdapter)
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def test_schema_dump_includes_bigint_default
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output = dump_table_schema "defaults"
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assert_match %r{t\.bigint\s+"bigint_default",\s+default: 0}, output
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end
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def test_schema_dump_includes_limit_on_array_type
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output = dump_table_schema "bigint_array"
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assert_match %r{t\.bigint\s+"big_int_data_points\",\s+array: true}, output
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end
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def test_schema_dump_allows_array_of_decimal_defaults
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output = dump_table_schema "bigint_array"
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assert_match %r{t\.decimal\s+"decimal_array_default",\s+default: \["1.23", "3.45"\],\s+array: true}, output
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end
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def test_schema_dump_interval_type
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output = dump_table_schema "postgresql_times"
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assert_match %r{t\.interval\s+"time_interval"$}, output
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assert_match %r{t\.interval\s+"scaled_time_interval",\s+precision: 6$}, output
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end
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def test_schema_dump_oid_type
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output = dump_table_schema "postgresql_oids"
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assert_match %r{t\.oid\s+"obj_id"$}, output
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end
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def test_schema_dump_includes_extensions
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connection = ActiveRecord::Base.connection
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connection.stub(:extensions, ["hstore"]) do
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output = perform_schema_dump
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assert_match "# These are extensions that must be enabled", output
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assert_match %r{enable_extension "hstore"}, output
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end
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connection.stub(:extensions, []) do
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output = perform_schema_dump
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assert_no_match "# These are extensions that must be enabled", output
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assert_no_match %r{enable_extension}, output
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end
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end
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def test_schema_dump_includes_extensions_in_alphabetic_order
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connection = ActiveRecord::Base.connection
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connection.stub(:extensions, ["hstore", "uuid-ossp", "xml2"]) do
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output = perform_schema_dump
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enabled_extensions = output.scan(%r{enable_extension "(.+)"}).flatten
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assert_equal ["hstore", "uuid-ossp", "xml2"], enabled_extensions
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end
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connection.stub(:extensions, ["uuid-ossp", "xml2", "hstore"]) do
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output = perform_schema_dump
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enabled_extensions = output.scan(%r{enable_extension "(.+)"}).flatten
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assert_equal ["hstore", "uuid-ossp", "xml2"], enabled_extensions
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end
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end
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end
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def test_schema_dump_keeps_large_precision_integer_columns_as_decimal
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output = standard_dump
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# Oracle supports precision up to 38 and it identifies decimals with scale 0 as integers
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if current_adapter?(:OracleAdapter)
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assert_match %r{t\.integer\s+"atoms_in_universe",\s+precision: 38}, output
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elsif current_adapter?(:FbAdapter)
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assert_match %r{t\.integer\s+"atoms_in_universe",\s+precision: 18}, output
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else
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assert_match %r{t\.decimal\s+"atoms_in_universe",\s+precision: 55}, output
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end
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end
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def test_schema_dump_keeps_id_column_when_id_is_false_and_id_column_added
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output = standard_dump
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match = output.match(%r{create_table "goofy_string_id"(.*)do.*\n(.*)\n})
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assert_not_nil(match, "goofy_string_id table not found")
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assert_match %r(id: false), match[1], "no table id not preserved"
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assert_match %r{t\.string\s+"id",.*?null: false$}, match[2], "non-primary key id column not preserved"
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end
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def test_schema_dump_keeps_id_false_when_id_is_false_and_unique_not_null_column_added
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output = standard_dump
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assert_match %r{create_table "string_key_objects", id: false}, output
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end
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if ActiveRecord::Base.connection.supports_foreign_keys?
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def test_foreign_keys_are_dumped_at_the_bottom_to_circumvent_dependency_issues
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output = standard_dump
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assert_match(/^\s+add_foreign_key "fk_test_has_fk"[^\n]+\n\s+add_foreign_key "lessons_students"/, output)
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end
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def test_do_not_dump_foreign_keys_for_ignored_tables
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output = dump_table_schema "authors"
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assert_equal ["authors"], output.scan(/^\s*add_foreign_key "([^"]+)".+$/).flatten
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end
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end
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class CreateDogMigration < ActiveRecord::Migration::Current
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def up
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create_table("dog_owners") do |t|
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end
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create_table("dogs") do |t|
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t.column :name, :string
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t.references :owner
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t.index [:name]
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t.foreign_key :dog_owners, column: "owner_id"
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end
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end
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def down
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drop_table("dogs")
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drop_table("dog_owners")
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end
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end
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def test_schema_dump_with_table_name_prefix_and_suffix
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original, $stdout = $stdout, StringIO.new
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ActiveRecord::Base.table_name_prefix = "foo_"
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ActiveRecord::Base.table_name_suffix = "_bar"
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migration = CreateDogMigration.new
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migration.migrate(:up)
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output = perform_schema_dump
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assert_no_match %r{create_table "foo_.+_bar"}, output
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assert_no_match %r{add_index "foo_.+_bar"}, output
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assert_no_match %r{create_table "schema_migrations"}, output
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assert_no_match %r{create_table "ar_internal_metadata"}, output
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if ActiveRecord::Base.connection.supports_foreign_keys?
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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_suffix_regexp_escape
|
|
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
|
|
assert_no_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 :dump_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"
|
|
t.decimal :decimal_with_default, default: "1234567890.0123456789", precision: 20, scale: 10
|
|
end
|
|
|
|
if current_adapter?(:PostgreSQLAdapter)
|
|
@connection.create_table :infinity_defaults, force: true do |t|
|
|
t.float :float_with_inf_default, default: Float::INFINITY
|
|
t.float :float_with_nan_default, default: Float::NAN
|
|
end
|
|
end
|
|
end
|
|
|
|
teardown do
|
|
@connection.drop_table "dump_defaults", if_exists: true
|
|
end
|
|
|
|
def test_schema_dump_defaults_with_universally_supported_types
|
|
output = dump_table_schema("dump_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
|
|
assert_match %r{t\.decimal\s+"decimal_with_default",\s+precision: 20,\s+scale: 10,\s+default: "1234567890.0123456789"}, output
|
|
end
|
|
|
|
def test_schema_dump_with_float_column_infinity_default
|
|
skip unless current_adapter?(:PostgreSQLAdapter)
|
|
output = dump_table_schema("infinity_defaults")
|
|
assert_match %r{t\.float\s+"float_with_inf_default",\s+default: ::Float::INFINITY}, output
|
|
assert_match %r{t\.float\s+"float_with_nan_default",\s+default: ::Float::NAN}, output
|
|
end
|
|
end
|