test_shelve.py 文件源码

def test_writeback_also_writes_immediately(self):
        # Issue 5754
        d = {}
        key = 'key'
        encodedkey = key.encode('utf-8')
        s = shelve.Shelf(d, writeback=True)
        s[key] = [1]
        p1 = d[encodedkey]  # Will give a KeyError if backing store not updated
        s['key'].append(2)
        s.close()
        p2 = d[encodedkey]
        self.assertNotEqual(p1, p2)  # Write creates new object in store