test_number.py 文件源码

def test_isPrime(self):
        """Util.number.isPrime"""
        self.assertEqual(number.isPrime(-3), False)     # Regression test: negative numbers should not be prime
        self.assertEqual(number.isPrime(-2), False)     # Regression test: negative numbers should not be prime
        self.assertEqual(number.isPrime(1), False)      # Regression test: isPrime(1) caused some versions of PyCrypto to crash.
        self.assertEqual(number.isPrime(2), True)
        self.assertEqual(number.isPrime(3), True)
        self.assertEqual(number.isPrime(4), False)
        self.assertEqual(number.isPrime(2**1279-1), True)
        self.assertEqual(number.isPrime(-(2**1279-1)), False)     # Regression test: negative numbers should not be prime
        # test some known gmp pseudo-primes taken from
        # http://www.trnicely.net/misc/mpzspsp.html
        for composite in (43 * 127 * 211, 61 * 151 * 211, 15259 * 30517,
                          346141 * 692281, 1007119 * 2014237, 3589477 * 7178953,
                          4859419 * 9718837, 2730439 * 5460877,
                          245127919 * 490255837, 963939391 * 1927878781,
                          4186358431 * 8372716861, 1576820467 * 3153640933):
            self.assertEqual(number.isPrime(int(composite)), False)