def test_400_should_return_true(self): self.assertTrue(is_leap_year(400))
def test_2019_should_return_false(self): self.assertFalse(is_leap_year(2019))
def test_2100_should_return_false(self): self.assertFalse(is_leap_year(2100))
def test_2016_should_return_true(self): self.assertTrue(is_leap_year(2016))
def test_1_should_return_false(self): self.assertFalse(is_leap_year(1))