test_mimetypes.py 文件源码

def test_type_map_values(self):
        import _winreg

        class MockWinreg(object):
            def __getattr__(self, name):
                if name == 'QueryValueEx':
                    return lambda subkey, label: (u'text/plain', _winreg.REG_SZ)
                return getattr(_winreg, name)

        mimetypes._winreg = MockWinreg()
        try:
            mimetypes.init()
            self.assertTrue(isinstance(mimetypes.types_map.values()[0], str))
        finally:
            mimetypes._winreg = _winreg