Question

对于某些方法，我需要验证日志消息作为断言的一部分。

问题是，如果我仅运行该文件，它将正常工作。但是，当我运行所有测试用例时，它失败了，因为它找不到任何错误日志消息。

delete_later.py

class DeleteLater:

    def message(self):
        logging.info("info")

test_delete_later.py

class TestDeleteLater(unittest.TestCase):
    def test_message(self):
        with self.assertLogs(level='INFO') as cm:
            DeleteLater().message()
            assert "INFO:root:info" in cm.output

运行单个测试用例时通过

(.venv) ➜  ci-cd-framework git:(feature/DAC-962) ✗ py.test -v tests/test_delete_later.py


    ============================================================================================================ test session starts =============================================================================================================
    platform darwin -- Python 3.4.9, pytest-3.2.3, py-1.7.0, pluggy-0.4.0 -- /demo/.venv/bin/python3
    cachedir: .cache
    rootdir: /demo, inifile:
    collected 1 item

tests/test_delete_later.py::TestDeleteLater::test_message PASSED

运行所有测试失败

self = <recipes.tests.test_delete_later.TestDeleteLater testMethod=test_message>

    def test_message(self):
        with self.assertLogs(level='INFO') as cm:
            DeleteLater().message()
>           assert "INFO:root:info" in cm.output
E           AssertionError: assert 'INFO:root:info' in []
E            +  where [] = _LoggingWatcher(records=[], output=[]).output

recipes/tests/test_delete_later.py:15: AssertionError
------------------------------------------------------------------------------------------------------------ Captured stdout call ------------------------------------------------------------------------------------------------------------
2019-01-13 16:47:12,270 - <MagicMock name='mock()' id='4594187624'> - info

单元测试：验证日志消息不起作用

0 个答案: