+
+ def test_uniqueness
+ tag = OldNodeTag.new
+ tag.id = node_tags(:t1).id
+ tag.version = node_tags(:t1).version
+ tag.k = node_tags(:t1).k
+ tag.v = node_tags(:t1).v
+ assert tag.new_record?
+ assert !tag.valid?
+ assert_raise(ActiveRecord::RecordInvalid) {tag.save!}
+ assert tag.new_record?
+ end