def test_equal_1(self): self.assertEqual(sorted(two_sum([1, 2, 3], 4)), [0, 2])
def test_equal_2(self): self.assertEqual(sorted(two_sum([1234, 5678, 9012], 14690)), [1, 2])
def test_equal_3(self): self.assertEqual(sorted(two_sum([2, 2, 3], 4)), [0, 1])