def test_non_prime_alt(self): self.assertTrue(is_prime(4), msg="Four is not a prime number.")
def test_zero(self): self.assertFalse(is_prime(0))
def test_non_prime(self): self.assertFalse(is_prime(4))
def test_prime(self): self.assertTrue(is_prime(5))
def test_string(self): with self.assertRaises(TypeError): is_prime('1')
def test_true(self): self.assertTrue(is_prime(5)) self.assertFalse(is_prime(4))
def test_value(self): self.assertEqual(is_prime(3), True)