Method test_pylong_roundtrip

Lib/test/test_int.py:842–853

(self)

                int(big_value)

    def test_pylong_roundtrip(self):
        from random import randrange, getrandbits
        bits = 5000
        while bits <= 1_000_000:
            bits += randrange(-100, 101) # break bitlength patterns
            hibit = 1 << (bits - 1)
            n = hibit | getrandbits(bits - 1)
            assert n.bit_length() == bits
            sn = str(n)
            self.assertNotStartsWith(sn, '0')
            self.assertEqual(n, int(sn))
            bits <<= 1

    @support.requires_resource('cpu')
    @unittest.skipUnless(_decimal, "C _decimal module required")