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(2L**1279-1), True)
        self.assertEqual(number.isPrime(-(2L**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,
                          346141L * 692281L, 1007119L * 2014237L, 3589477L * 7178953L,
                          4859419L * 9718837L, 2730439L * 5460877L,
                          245127919L * 490255837L, 963939391L * 1927878781L,
                          4186358431L * 8372716861L, 1576820467L * 3153640933L):
            self.assertEqual(number.isPrime(long(composite)), False)