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Diffstat (limited to 'activerecord/test/cases/migrator_test.rb')
-rw-r--r-- | activerecord/test/cases/migrator_test.rb | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/activerecord/test/cases/migrator_test.rb b/activerecord/test/cases/migrator_test.rb new file mode 100644 index 0000000000..143aadd833 --- /dev/null +++ b/activerecord/test/cases/migrator_test.rb @@ -0,0 +1,133 @@ +require "cases/helper" + +module ActiveRecord + class MigratorTest < ActiveRecord::TestCase + # Use this class to sense if migrations have gone + # up or down. + class Sensor < ActiveRecord::Migration + attr_reader :went_up, :went_down + + def initialize name, version + super + @went_up = false + @went_down = false + end + + def up; @went_up = true; end + def down; @went_down = true; end + end + + def setup + super + ActiveRecord::SchemaMigration.create_table + ActiveRecord::SchemaMigration.delete_all rescue nil + end + + def teardown + super + ActiveRecord::SchemaMigration.delete_all rescue nil + end + + def test_migrator_with_duplicate_names + assert_raises(ActiveRecord::DuplicateMigrationNameError, "Multiple migrations have the name Chunky") do + list = [Migration.new('Chunky'), Migration.new('Chunky')] + ActiveRecord::Migrator.new(:up, list) + end + end + + def test_migrator_with_duplicate_versions + assert_raises(ActiveRecord::DuplicateMigrationVersionError) do + list = [Migration.new('Foo', 1), Migration.new('Bar', 1)] + ActiveRecord::Migrator.new(:up, list) + end + end + + def test_migrator_with_missing_version_numbers + assert_raises(ActiveRecord::UnknownMigrationVersionError) do + list = [Migration.new('Foo', 1), Migration.new('Bar', 2)] + ActiveRecord::Migrator.new(:up, list, 3).run + end + end + + def test_finds_migrations + migrations = ActiveRecord::Migrator.migrations(MIGRATIONS_ROOT + "/valid") + + [[1, 'ValidPeopleHaveLastNames'], [2, 'WeNeedReminders'], [3, 'InnocentJointable']].each_with_index do |pair, i| + assert_equal migrations[i].version, pair.first + assert_equal migrations[i].name, pair.last + end + end + + def test_finds_migrations_in_subdirectories + migrations = ActiveRecord::Migrator.migrations(MIGRATIONS_ROOT + "/valid_with_subdirectories") + + [[1, 'ValidPeopleHaveLastNames'], [2, 'WeNeedReminders'], [3, 'InnocentJointable']].each_with_index do |pair, i| + assert_equal migrations[i].version, pair.first + assert_equal migrations[i].name, pair.last + end + end + + def test_finds_migrations_from_two_directories + directories = [MIGRATIONS_ROOT + '/valid_with_timestamps', MIGRATIONS_ROOT + '/to_copy_with_timestamps'] + migrations = ActiveRecord::Migrator.migrations directories + + [[20090101010101, "PeopleHaveHobbies"], + [20090101010202, "PeopleHaveDescriptions"], + [20100101010101, "ValidWithTimestampsPeopleHaveLastNames"], + [20100201010101, "ValidWithTimestampsWeNeedReminders"], + [20100301010101, "ValidWithTimestampsInnocentJointable"]].each_with_index do |pair, i| + assert_equal pair.first, migrations[i].version + assert_equal pair.last, migrations[i].name + end + end + + def test_deprecated_constructor + assert_deprecated do + ActiveRecord::Migrator.new(:up, MIGRATIONS_ROOT + "/valid") + end + end + + def test_relative_migrations + list = Dir.chdir(MIGRATIONS_ROOT) do + ActiveRecord::Migrator.migrations("valid/") + end + + migration_proxy = list.find { |item| + item.name == 'ValidPeopleHaveLastNames' + } + assert migration_proxy, 'should find pending migration' + end + + def test_finds_pending_migrations + ActiveRecord::SchemaMigration.create!(:version => '1') + migration_list = [ Migration.new('foo', 1), Migration.new('bar', 3) ] + migrations = ActiveRecord::Migrator.new(:up, migration_list).pending_migrations + + assert_equal 1, migrations.size + assert_equal migration_list.last, migrations.first + end + + def test_migrator_interleaved_migrations + pass_one = [Sensor.new('One', 1)] + + ActiveRecord::Migrator.new(:up, pass_one).migrate + assert pass_one.first.went_up + refute pass_one.first.went_down + + pass_two = [Sensor.new('One', 1), Sensor.new('Three', 3)] + ActiveRecord::Migrator.new(:up, pass_two).migrate + refute pass_two[0].went_up + assert pass_two[1].went_up + assert pass_two.all? { |x| !x.went_down } + + pass_three = [Sensor.new('One', 1), + Sensor.new('Two', 2), + Sensor.new('Three', 3)] + + ActiveRecord::Migrator.new(:down, pass_three).migrate + assert pass_three[0].went_down + refute pass_three[1].went_down + assert pass_three[2].went_down + end + end +end |