Method testHash

Lib/test/test_fractions.py:1147–1156

(self)

        self.assertEqual("7", str(F(7, 1)))

    def testHash(self):
        hmod = sys.hash_info.modulus
        hinf = sys.hash_info.inf
        self.assertEqual(hash(2.5), hash(F(5, 2)))
        self.assertEqual(hash(10**50), hash(F(10**50)))
        self.assertNotEqual(hash(float(10**23)), hash(F(10**23)))
        self.assertEqual(hinf, hash(F(1, hmod)))
        # Check that __hash__ produces the same value as hash(), for
        # consistency with int and Decimal.  (See issue #10356.)
        self.assertEqual(hash(F(-1)), F(-1).__hash__())

    def testApproximatePi(self):
        # Algorithm borrowed from