def test_qualified_name(self):
key1 = Key.build_from_qualified_name('Kettle.Black')
self.assertEqual(key1, Key.make_key('Black', 'Kettle'))
key2 = Key.build_from_qualified_name('Kettle.Black.Osmus')
self.assertEqual(key2, Key.make_key('Black.Osmus', 'Kettle'))
key3 = Key.make_key()
self.assertEqual(str(key3), 'default.?')
