def test_true_2(self): self.assertTrue(circular_prime(971))
def test_true(self): self.assertTrue(circular_prime(197))
def test_false(self): self.assertFalse(circular_prime(12345))
def test_false_2(self): self.assertFalse(circular_prime(222))
def test_true_3(self): self.assertTrue(circular_prime(11939))