def test_false(self): self.assertFalse(is_valid_IP(''))
def test_true(self): self.assertTrue(is_valid_IP('12.255.56.1'))
def test_false_7(self): self.assertFalse(is_valid_IP('123.045.067.089'))
def test_false_6(self): self.assertFalse(is_valid_IP('12.34.56.-1'))
def test_false_3(self): self.assertFalse(is_valid_IP('123.456.789.0'))
def test_false_2(self): self.assertFalse(is_valid_IP('abc.def.ghi.jkl'))