# my_module.py import requests def fetch_data_from_api(): response = requests.get('http://example.com/api') return response.json() def process_data(data): # 假设这里有一些数据处理逻辑 return [item['id'] for item in data] 我们可以使用pytest和MagicMock来测试process_data函数: ...
1. 使用MagicMock MagicMock是unittest.mock模块中的一个类,它可以模拟任何对象的行为。以下是一个示例: from unittest.mock import MagicMock class Database: def connect(self): pass def fetch_data(db): db.connect() return "data" def test_fetch_data(): db = MagicMock() result = fetch_data(db) ...
patchfrommy_weather_apiimportget_forecastdeftest_get_forecast():# 创建一个MagicMock对象模拟http_requ...
测试时模拟requests.get：def test_api_client(mocker): mock_response = mocker.MagicMock() ...
# test_mock_example.py from unittest.mock import MagicMock def test_mock_method(): mock_obj = MagicMock() mock_obj.some_method.return_value = 42 result = mock_obj.some_method() assert result == 42 4.2 运行pytest和mock测试 同样地,可以使用pytest命令来运行测试: ...
Then, wheni_call_hello_world()is executed inif isinstance(hw_obj, HelloWorld):HelloWorldis aMagicMock()object and not a class (as the error suggests). 该行为是因为作为修补类引用的副作用,isinstance(hw_obj, HelloWorld)的第二个参数变成了一个对象(MagicMock实例)。这既不是class也不是type。理解此...
tc = TestClass()# 使用MagicMock创建并替换原来的func方法,并指定其被调用时的返回值tc.func = MagicMock(return_value='666')print(tc.func(2,3))# 判断func是否按照指定的方式被调用,如果没有,# 比如这里指定assert_called_with(4, 5),就会抛出异常,# 因为之前使用的是tc.func(2, 3)来进行调用的print...
pytest test_example.py 2.3 Mock 与断言库:unittest.mock 在测试中,我们经常需要模拟某些依赖,比如数据库查询或外部API调用。unittest.mock提供了强大的 mock 功能。 示例代码: 代码语言:javascript 复制 from unittest.mockimportMagicMock deffetch_data(api_client):returnapi_client.get_data()deftest_fetch_data...
MagicMock is the same as Mock, but it includes magic methods. As a quick example of how to mock an object, consider the following sample module: Python weekday.py import datetime def is_weekday(): today = datetime.date.today() return 0 <= today.weekday() < 5 This module defines...
from unittest.mock import MagicMock obj = MagicMock() print(dir(obj)) 1. 2. 3. 4. ['assert_any_call', 'assert_called', 'assert_called_once', 'assert_called_once_with', 'assert_called_with', 'assert_has_calls', 'assert_not_called', 'attach_mock', ...