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我目前正在尝试（但失败了）在我的简单应用程序上执行单元测试，该应用程序将数据发布到 MySQL 数据库。下面是我尝试运行的单元测试，不确定这是否能成功测试我的代码，但会出现 TypeError: 'Mock' object is not iterable

单元测试.py

from unittest import mock
from unittest.mock import patch, MagicMock
from unittest.mock import Mock


from source.src.scores import *


@mock.patch('source.src.scores.request')
def test_add_scores(self):
    columns = ["Match_ID", "Home_Score", "Away_Score"]
    values = [1, 1, 1]

    expected_score = {columns[i]: values[i] for i in range(len(columns))}

    with patch('source.src.scores.mysql.connector') as patch_connector:

        cursor = Mock()
        cursor.fetchone.return_value = values
        cursor.column_names = columns
        connect = Mock()
        connect.cursor.return_value = cursor

        patch_connector.connect.return_value = connect

        with patch('source.src.scores.jsonify') as json:
            json.return_value = expected_score

            json_return, http_code = …