diff --git a/activerecord/test/cases/migration/compatibility_test.rb b/activerecord/test/cases/migration/compatibility_test.rb index 7a80bfb899426334606b29c48f166a451220b764..596a21dcbca60284872375dbe469f94fc6cf9700 100644 --- a/activerecord/test/cases/migration/compatibility_test.rb +++ b/activerecord/test/cases/migration/compatibility_test.rb @@ -90,6 +90,21 @@ def migrate(x) connection.drop_table :more_testings rescue nil end + def test_timestamps_have_null_constraints_if_not_present_in_migration_of_change_table + migration = Class.new(ActiveRecord::Migration[4.2]) { + def migrate(x) + change_table :testings do |t| + t.timestamps + end + end + }.new + + ActiveRecord::Migrator.new(:up, [migration]).migrate + + assert connection.columns(:testings).find { |c| c.name == "created_at" }.null + assert connection.columns(:testings).find { |c| c.name == "updated_at" }.null + end + def test_timestamps_have_null_constraints_if_not_present_in_migration_for_adding_timestamps_to_existing_table migration = Class.new(ActiveRecord::Migration[4.2]) { def migrate(x)