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rails--rails/activerecord/test/cases/invertible_migration_test.rb
2019-07-03 15:05:21 +09:00

504 lines
15 KiB
Ruby

# frozen_string_literal: true
require "cases/helper"
class Horse < ActiveRecord::Base
end
module ActiveRecord
class InvertibleMigrationTest < ActiveRecord::TestCase
class SilentMigration < ActiveRecord::Migration::Current
def write(text = "")
# sssshhhhh!!
end
end
class InvertibleMigration < SilentMigration
def change
create_table("horses") do |t|
t.column :content, :text
t.column :remind_at, :datetime
end
end
end
class InvertibleChangeTableMigration < SilentMigration
def change
change_table("horses") do |t|
t.column :name, :string
t.remove :remind_at, type: :datetime
end
end
end
class InvertibleTransactionMigration < InvertibleMigration
def change
transaction do
super
end
end
end
class InvertibleRevertMigration < SilentMigration
def change
revert do
create_table("horses") do |t|
t.column :content, :text
t.column :remind_at, :datetime
end
end
end
end
class InvertibleByPartsMigration < SilentMigration
attr_writer :test
def change
create_table("new_horses") do |t|
t.column :breed, :string
end
reversible do |dir|
@test.yield :both
dir.up { @test.yield :up }
dir.down { @test.yield :down }
end
revert do
create_table("horses") do |t|
t.column :content, :text
t.column :remind_at, :datetime
end
end
end
end
class NonInvertibleMigration < SilentMigration
def change
create_table("horses") do |t|
t.column :content, :text
t.column :remind_at, :datetime
end
remove_column "horses", :content
end
end
class RemoveIndexMigration1 < SilentMigration
def self.up
create_table("horses") do |t|
t.column :name, :string
t.column :color, :string
t.index [:name, :color]
end
end
end
class RemoveIndexMigration2 < SilentMigration
def change
change_table("horses") do |t|
t.remove_index [:name, :color]
end
end
end
class ChangeColumnDefault1 < SilentMigration
def change
create_table("horses") do |t|
t.column :name, :string, default: "Sekitoba"
end
end
end
class ChangeColumnDefault2 < SilentMigration
def change
change_column_default :horses, :name, from: "Sekitoba", to: "Diomed"
end
end
class ChangeColumnComment1 < SilentMigration
def change
create_table("horses") do |t|
t.column :name, :string, comment: "Sekitoba"
end
end
end
class ChangeColumnComment2 < SilentMigration
def change
change_column_comment :horses, :name, from: "Sekitoba", to: "Diomed"
end
end
class ChangeTableComment1 < SilentMigration
def change
create_table("horses", comment: "Sekitoba")
end
end
class ChangeTableComment2 < SilentMigration
def change
change_table_comment :horses, from: "Sekitoba", to: "Diomed"
end
end
class DisableExtension1 < SilentMigration
def change
enable_extension "hstore"
end
end
class DisableExtension2 < SilentMigration
def change
disable_extension "hstore"
end
end
class LegacyMigration < ActiveRecord::Migration::Current
def self.up
create_table("horses") do |t|
t.column :content, :text
t.column :remind_at, :datetime
end
end
def self.down
drop_table("horses")
end
end
class RevertWholeMigration < SilentMigration
def initialize(name = self.class.name, version = nil, migration)
@migration = migration
super(name, version)
end
def change
revert @migration
end
end
class NestedRevertWholeMigration < RevertWholeMigration
def change
revert { super }
end
end
class RevertNamedIndexMigration1 < SilentMigration
def change
create_table("horses") do |t|
t.column :content, :string
t.column :remind_at, :datetime
end
add_index :horses, :content
end
end
class RevertNamedIndexMigration2 < SilentMigration
def change
add_index :horses, :content, name: "horses_index_named"
end
end
class RevertCustomForeignKeyTable < SilentMigration
def change
change_table(:horses) do |t|
t.references :owner, foreign_key: { to_table: :developers }
end
end
end
class UpOnlyMigration < SilentMigration
def change
add_column :horses, :oldie, :integer, default: 0
up_only { execute "update horses set oldie = 1" }
end
end
self.use_transactional_tests = false
setup do
@verbose_was, ActiveRecord::Migration.verbose = ActiveRecord::Migration.verbose, false
end
teardown do
%w[horses new_horses].each do |table|
if ActiveRecord::Base.connection.table_exists?(table)
ActiveRecord::Base.connection.drop_table(table)
end
end
ActiveRecord::Migration.verbose = @verbose_was
end
def test_no_reverse
migration = NonInvertibleMigration.new
migration.migrate(:up)
assert_raises(IrreversibleMigration) do
migration.migrate(:down)
end
end
def test_exception_on_removing_index_without_column_option
index_definition = ["horses", [:name, :color]]
migration1 = RemoveIndexMigration1.new
migration1.migrate(:up)
assert migration1.connection.index_exists?(*index_definition)
migration2 = RemoveIndexMigration2.new
migration2.migrate(:up)
assert_not migration2.connection.index_exists?(*index_definition)
migration2.migrate(:down)
assert migration2.connection.index_exists?(*index_definition)
end
def test_migrate_up
migration = InvertibleMigration.new
migration.migrate(:up)
assert migration.connection.table_exists?("horses"), "horses should exist"
end
def test_migrate_down
migration = InvertibleMigration.new
migration.migrate :up
migration.migrate :down
assert_not migration.connection.table_exists?("horses")
end
def test_migrate_revert
migration = InvertibleMigration.new
revert = InvertibleRevertMigration.new
migration.migrate :up
revert.migrate :up
assert_not migration.connection.table_exists?("horses")
revert.migrate :down
assert migration.connection.table_exists?("horses")
migration.migrate :down
assert_not migration.connection.table_exists?("horses")
end
def test_migrate_revert_change_table
InvertibleMigration.new.migrate :up
migration = InvertibleChangeTableMigration.new
migration.migrate :up
assert_not migration.connection.column_exists?(:horses, :remind_at)
migration.migrate :down
assert migration.connection.column_exists?(:horses, :remind_at)
end
def test_migrate_revert_by_part
InvertibleMigration.new.migrate :up
received = []
migration = InvertibleByPartsMigration.new
migration.test = ->(dir) {
assert migration.connection.table_exists?("horses")
assert migration.connection.table_exists?("new_horses")
received << dir
}
migration.migrate :up
assert_equal [:both, :up], received
assert_not migration.connection.table_exists?("horses")
assert migration.connection.table_exists?("new_horses")
migration.migrate :down
assert_equal [:both, :up, :both, :down], received
assert migration.connection.table_exists?("horses")
assert_not migration.connection.table_exists?("new_horses")
end
def test_migrate_revert_whole_migration
migration = InvertibleMigration.new
[LegacyMigration, InvertibleMigration].each do |klass|
revert = RevertWholeMigration.new(klass)
migration.migrate :up
revert.migrate :up
assert_not migration.connection.table_exists?("horses")
revert.migrate :down
assert migration.connection.table_exists?("horses")
migration.migrate :down
assert_not migration.connection.table_exists?("horses")
end
end
def test_migrate_nested_revert_whole_migration
revert = NestedRevertWholeMigration.new(InvertibleRevertMigration)
revert.migrate :down
assert revert.connection.table_exists?("horses")
revert.migrate :up
assert_not revert.connection.table_exists?("horses")
end
def test_migrate_revert_transaction
migration = InvertibleTransactionMigration.new
migration.migrate :up
assert migration.connection.table_exists?("horses")
migration.migrate :down
assert_not migration.connection.table_exists?("horses")
end
def test_migrate_revert_change_column_default
migration1 = ChangeColumnDefault1.new
migration1.migrate(:up)
Horse.reset_column_information
assert_equal "Sekitoba", Horse.new.name
migration2 = ChangeColumnDefault2.new
migration2.migrate(:up)
Horse.reset_column_information
assert_equal "Diomed", Horse.new.name
migration2.migrate(:down)
Horse.reset_column_information
assert_equal "Sekitoba", Horse.new.name
end
if ActiveRecord::Base.connection.supports_comments?
def test_migrate_revert_change_column_comment
migration1 = ChangeColumnComment1.new
migration1.migrate(:up)
Horse.reset_column_information
assert_equal "Sekitoba", Horse.columns_hash["name"].comment
migration2 = ChangeColumnComment2.new
migration2.migrate(:up)
Horse.reset_column_information
assert_equal "Diomed", Horse.columns_hash["name"].comment
migration2.migrate(:down)
Horse.reset_column_information
assert_equal "Sekitoba", Horse.columns_hash["name"].comment
end
def test_migrate_revert_change_table_comment
connection = ActiveRecord::Base.connection
migration1 = ChangeTableComment1.new
migration1.migrate(:up)
assert_equal "Sekitoba", connection.table_comment("horses")
migration2 = ChangeTableComment2.new
migration2.migrate(:up)
assert_equal "Diomed", connection.table_comment("horses")
migration2.migrate(:down)
assert_equal "Sekitoba", connection.table_comment("horses")
end
end
if current_adapter?(:PostgreSQLAdapter)
def test_migrate_enable_and_disable_extension
migration1 = InvertibleMigration.new
migration2 = DisableExtension1.new
migration3 = DisableExtension2.new
assert_equal true, Horse.connection.extension_available?("hstore")
migration1.migrate(:up)
migration2.migrate(:up)
assert_equal true, Horse.connection.extension_enabled?("hstore")
migration3.migrate(:up)
assert_equal false, Horse.connection.extension_enabled?("hstore")
migration3.migrate(:down)
assert_equal true, Horse.connection.extension_enabled?("hstore")
migration2.migrate(:down)
assert_equal false, Horse.connection.extension_enabled?("hstore")
ensure
enable_extension!("hstore", ActiveRecord::Base.connection)
end
end
def test_revert_order
block = Proc.new { |t| t.string :name }
recorder = ActiveRecord::Migration::CommandRecorder.new(ActiveRecord::Base.connection)
recorder.instance_eval do
create_table("apples", &block)
revert do
create_table("bananas", &block)
revert do
create_table("clementines")
create_table("dates")
end
create_table("elderberries")
end
revert do
create_table("figs")
create_table("grapes")
end
end
assert_equal [[:create_table, ["apples"], block], [:drop_table, ["elderberries"], nil],
[:create_table, ["clementines"], nil], [:create_table, ["dates"], nil],
[:drop_table, ["bananas"], block], [:drop_table, ["grapes"], nil],
[:drop_table, ["figs"], nil]], recorder.commands
end
def test_legacy_up
LegacyMigration.migrate :up
assert ActiveRecord::Base.connection.table_exists?("horses"), "horses should exist"
end
def test_legacy_down
LegacyMigration.migrate :up
LegacyMigration.migrate :down
assert_not ActiveRecord::Base.connection.table_exists?("horses"), "horses should not exist"
end
def test_up
LegacyMigration.up
assert ActiveRecord::Base.connection.table_exists?("horses"), "horses should exist"
end
def test_down
LegacyMigration.up
LegacyMigration.down
assert_not ActiveRecord::Base.connection.table_exists?("horses"), "horses should not exist"
end
def test_migrate_down_with_table_name_prefix
ActiveRecord::Base.table_name_prefix = "p_"
ActiveRecord::Base.table_name_suffix = "_s"
migration = InvertibleMigration.new
migration.migrate(:up)
assert_nothing_raised { migration.migrate(:down) }
assert_not ActiveRecord::Base.connection.table_exists?("p_horses_s"), "p_horses_s should not exist"
ensure
ActiveRecord::Base.table_name_prefix = ActiveRecord::Base.table_name_suffix = ""
end
def test_migrations_can_handle_foreign_keys_to_specific_tables
migration = RevertCustomForeignKeyTable.new
InvertibleMigration.migrate(:up)
migration.migrate(:up)
migration.migrate(:down)
end
# MySQL 5.7 and Oracle do not allow to create duplicate indexes on the same columns
unless current_adapter?(:Mysql2Adapter, :OracleAdapter)
def test_migrate_revert_add_index_with_name
RevertNamedIndexMigration1.new.migrate(:up)
RevertNamedIndexMigration2.new.migrate(:up)
RevertNamedIndexMigration2.new.migrate(:down)
connection = ActiveRecord::Base.connection
assert connection.index_exists?(:horses, :content),
"index on content should exist"
assert_not connection.index_exists?(:horses, :content, name: "horses_index_named"),
"horses_index_named index should not exist"
end
end
def test_up_only
InvertibleMigration.new.migrate(:up)
horse1 = Horse.create
# populates existing horses with oldie = 1 but new ones have default 0
UpOnlyMigration.new.migrate(:up)
Horse.reset_column_information
horse1.reload
horse2 = Horse.create
assert 1, horse1.oldie # created before migration
assert 0, horse2.oldie # created after migration
UpOnlyMigration.new.migrate(:down) # should be no error
connection = ActiveRecord::Base.connection
assert_not connection.column_exists?(:horses, :oldie)
Horse.reset_column_information
end
end
end