def test_equals(self): self.assertEqual(power([1, 2, 3]), [ [], [1], [2], [3], [1, 2], [1, 3], [2, 3], [1, 2, 3] ])
def test_equals_2(self): self.assertEqual(power([1, 2, 3, 4]), [ [], [1], [2], [3], [4], [1, 2], [1, 3], [1, 4], [2, 3], [2, 4], [3, 4], [1, 2, 3], [1, 2, 4], [1, 3, 4], [2, 3, 4], [1, 2, 3, 4] ])