Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

381 lines (295 sloc) 12.007 kb
require "cases/helper"
require "cases/migration/helper"
module ActiveRecord
class MigratorTest < ActiveRecord::TestCase
self.use_transactional_fixtures = false
# 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 = self.class.name, version = nil
super
@went_up = false
@went_down = false
end
def up; @went_up = true; end
def down; @went_down = true; end
# also used in place of a MigrationProxy
def filename; "anon.rb"; end
def fingerprint; "123456789012345678901234567890ab"; 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', :name => "anon", :migrated_at => Time.now)
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
def test_up_calls_up
migrations = [Sensor.new(nil, 0), Sensor.new(nil, 1), Sensor.new(nil, 2)]
ActiveRecord::Migrator.new(:up, migrations).migrate
assert migrations.all? { |m| m.went_up }
assert migrations.all? { |m| !m.went_down }
assert_equal 2, ActiveRecord::Migrator.current_version
end
def test_down_calls_down
test_up_calls_up
migrations = [Sensor.new(nil, 0), Sensor.new(nil, 1), Sensor.new(nil, 2)]
ActiveRecord::Migrator.new(:down, migrations).migrate
assert migrations.all? { |m| !m.went_up }
assert migrations.all? { |m| m.went_down }
assert_equal 0, ActiveRecord::Migrator.current_version
end
def test_current_version
ActiveRecord::SchemaMigration.create!(:version => '1000', :name => "anon", :migrated_at => Time.now)
assert_equal 1000, ActiveRecord::Migrator.current_version
end
def test_migrator_one_up
calls, migrations = sensors(3)
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_equal [[:up, 1]], calls
calls.clear
ActiveRecord::Migrator.new(:up, migrations, 2).migrate
assert_equal [[:up, 2]], calls
end
def test_migrator_one_down
calls, migrations = sensors(3)
ActiveRecord::Migrator.new(:up, migrations).migrate
assert_equal [[:up, 1], [:up, 2], [:up, 3]], calls
calls.clear
ActiveRecord::Migrator.new(:down, migrations, 1).migrate
assert_equal [[:down, 3], [:down, 2]], calls
end
def test_migrator_one_up_one_down
calls, migrations = sensors(3)
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_equal [[:up, 1]], calls
calls.clear
ActiveRecord::Migrator.new(:down, migrations, 0).migrate
assert_equal [[:down, 1]], calls
end
def test_migrator_double_up
calls, migrations = sensors(3)
assert_equal(0, ActiveRecord::Migrator.current_version)
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_equal [[:up, 1]], calls
calls.clear
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_equal [], calls
end
def test_migrator_double_down
calls, migrations = sensors(3)
assert_equal(0, ActiveRecord::Migrator.current_version)
ActiveRecord::Migrator.new(:up, migrations, 1).run
assert_equal [[:up, 1]], calls
calls.clear
ActiveRecord::Migrator.new(:down, migrations, 1).run
assert_equal [[:down, 1]], calls
calls.clear
ActiveRecord::Migrator.new(:down, migrations, 1).run
assert_equal [], calls
assert_equal(0, ActiveRecord::Migrator.current_version)
end
def test_migrator_verbosity
_, migrations = sensors(3)
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_not_equal 0, ActiveRecord::Migration.message_count
ActiveRecord::Migration.message_count = 0
ActiveRecord::Migrator.new(:down, migrations, 0).migrate
assert_not_equal 0, ActiveRecord::Migration.message_count
ActiveRecord::Migration.message_count = 0
end
def test_migrator_verbosity_off
_, migrations = sensors(3)
ActiveRecord::Migration.message_count = 0
ActiveRecord::Migration.verbose = false
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_equal 0, ActiveRecord::Migration.message_count
ActiveRecord::Migrator.new(:down, migrations, 0).migrate
assert_equal 0, ActiveRecord::Migration.message_count
end
def test_target_version_zero_should_run_only_once
calls, migrations = sensors(3)
# migrate up to 1
ActiveRecord::Migrator.new(:up, migrations, 1).migrate
assert_equal [[:up, 1]], calls
calls.clear
# migrate down to 0
ActiveRecord::Migrator.new(:down, migrations, 0).migrate
assert_equal [[:down, 1]], calls
calls.clear
# migrate down to 0 again
ActiveRecord::Migrator.new(:down, migrations, 0).migrate
assert_equal [], calls
end
def test_migrator_going_down_due_to_version_target
calls, migrator = migrator_class(3)
migrator.up("valid", 1)
assert_equal [[:up, 1]], calls
calls.clear
migrator.migrate("valid", 0)
assert_equal [[:down, 1]], calls
calls.clear
migrator.migrate("valid")
assert_equal [[:up, 1], [:up, 2], [:up, 3]], calls
end
def test_migrator_rollback
_, migrator = migrator_class(3)
migrator.migrate("valid")
assert_equal(3, ActiveRecord::Migrator.current_version)
migrator.rollback("valid")
assert_equal(2, ActiveRecord::Migrator.current_version)
migrator.rollback("valid")
assert_equal(1, ActiveRecord::Migrator.current_version)
migrator.rollback("valid")
assert_equal(0, ActiveRecord::Migrator.current_version)
migrator.rollback("valid")
assert_equal(0, ActiveRecord::Migrator.current_version)
end
def test_migrator_db_has_no_schema_migrations_table
_, migrator = migrator_class(3)
ActiveRecord::Base.connection.execute("DROP TABLE schema_migrations")
refute ActiveRecord::Base.connection.table_exists?('schema_migrations')
migrator.migrate("valid", 1)
assert ActiveRecord::Base.connection.table_exists?('schema_migrations')
end
def test_migrator_forward
_, migrator = migrator_class(3)
migrator.migrate("/valid", 1)
assert_equal(1, ActiveRecord::Migrator.current_version)
migrator.forward("/valid", 2)
assert_equal(3, ActiveRecord::Migrator.current_version)
migrator.forward("/valid")
assert_equal(3, ActiveRecord::Migrator.current_version)
end
def test_only_loads_pending_migrations
# migrate up to 1
ActiveRecord::SchemaMigration.create!(:version => '1', :name => "anon", :migrated_at => Time.now)
calls, migrator = migrator_class(3)
migrator.migrate("valid", nil)
assert_equal [[:up, 2], [:up, 3]], calls
end
def test_get_all_versions
_, migrator = migrator_class(3)
migrator.migrate("valid")
assert_equal([1,2,3], ActiveRecord::Migrator.get_all_versions)
migrator.rollback("valid")
assert_equal([1,2], ActiveRecord::Migrator.get_all_versions)
migrator.rollback("valid")
assert_equal([1], ActiveRecord::Migrator.get_all_versions)
migrator.rollback("valid")
assert_equal([], ActiveRecord::Migrator.get_all_versions)
end
private
def m(name, version, &block)
x = Sensor.new name, version
x.extend(Module.new {
define_method(:up) { block.call(:up, x); super() }
define_method(:down) { block.call(:down, x); super() }
}) if block_given?
end
def sensors(count)
calls = []
migrations = count.times.map { |i|
m(nil, i + 1) { |c,migration|
calls << [c, migration.version]
}
}
[calls, migrations]
end
def migrator_class(count)
calls, migrations = sensors(count)
migrator = Class.new(Migrator).extend(Module.new {
define_method(:migrations) { |paths|
migrations
}
})
[calls, migrator]
end
end
end
Jump to Line
Something went wrong with that request. Please try again.