def test_02(self):
x = 19
expected = 21
got = lab.hailstone(x)
self.assertEqual(got, expected)
def test_03(self):
x = 27
expected = 112
got = lab.hailstone(x)
self.assertEqual(got, expected)
def test_01(self):
x = 12
expected = 10
got = lab.hailstone(x)
self.assertEqual(got, expected)