def test_copy(self):
a = TuplePath(("k1", "k2", "k3"))
b = a.copy()
self.assertIsNot(a, b)
self.assertEqual(a, b)
a[1] = "foo"
self.assertEqual(a, ("k1", "foo", "k3"))
self.assertNotEqual(a, b)
def test_copy__index_set(self):
a = TuplePath(("k1", "k2", "k3"))
b = a.copy(slice(1, len(a)))
self.assertEqual(b, ("k2", "k3"))