test_hashlib.py 文件源码

def test_get_builtin_constructor(self):
        get_builtin_constructor = hashlib.__dict__[
                '__get_builtin_constructor']
        self.assertRaises(ValueError, get_builtin_constructor, 'test')
        try:
            import _md5
        except ImportError:
            pass
        # This forces an ImportError for "import _md5" statements
        sys.modules['_md5'] = None
        try:
            self.assertRaises(ValueError, get_builtin_constructor, 'md5')
        finally:
            if '_md5' in locals():
                sys.modules['_md5'] = _md5
            else:
                del sys.modules['_md5']
        self.assertRaises(TypeError, get_builtin_constructor, 3)