test_utils.py 文件源码

def test_bytes(self):
        "test b() helper, bytes and native str type"
        if PY3:
            import builtins
            self.assertIs(bytes, builtins.bytes)
        else:
            import __builtin__ as builtins
            self.assertIs(bytes, builtins.str)

        self.assertIsInstance(b(''), bytes)
        self.assertIsInstance(b('\x00\xff'), bytes)
        if PY3:
            self.assertEqual(b('\x00\xff').decode("latin-1"), "\x00\xff")
        else:
            self.assertEqual(b('\x00\xff'), "\x00\xff")