def test_copy2(self):
a = Data(b="c")
aa = copy(a)
self.assertEqual(aa, a, "expecting to be the same")
self.assertEqual(a, aa, "expecting to be the same")
a.b = "d"
self.assertNotEqual(a, aa, "expecting to be different now")
self.assertNotEqual(aa, a, "expecting to be different now")
def test_update2_with_lists(self):
org = Data()
org.a = [1, 2, {'a': 'superman'}]
someother = Data()
someother.b = [{'b': 123}]
org |= someother
correct = {'a': [1, 2, {'a': 'superman'}], 'b': [{'b': 123}]}
org |= someother
self.assertEqual(org, correct)
self.assertIsInstance(org.b[0], Mapping)
