def test_answer_03(self):
x = 0
result = 0
self.assertEqual(Solution().mySqrt(x), result)
def test_answer_05(self):
x = 1
result = 1
self.assertEqual(Solution().mySqrt(x), result)
def test_answer_02(self):
x = 8
result = 2
self.assertEqual(Solution().mySqrt(x), result)