尝试运行 Flask 的测试套件时出错

Question

我遵循how to contribute to Flask 教程。

当我运行 pytest tests/*.py 时，测试通过了，但是当我简单地运行 pytest 时（如上面的参考资料所述），我收到以下错误消息：

pytest
============================= test session starts ==============================
platform linux -- Python 3.5.2, pytest-3.0.7, py-1.4.33, pluggy-0.4.0
rootdir: /home/begueradj/flask, inifile: setup.cfg
collected 377 items / 3 errors 

==================================== ERRORS ====================================
____________ ERROR collecting examples/flaskr/tests/test_flaskr.py _____________
ImportError while importing test module '/home/begueradj/flask/examples/flaskr/tests/test_flaskr.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
examples/flaskr/tests/test_flaskr.py:15: in <module>
    from flaskr import flaskr
E   ImportError: No module named 'flaskr'
__________ ERROR collecting examples/minitwit/tests/test_minitwit.py ___________
ImportError while importing test module '/home/begueradj/flask/examples/minitwit/tests/test_minitwit.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
examples/minitwit/tests/test_minitwit.py:14: in <module>
    from minitwit import minitwit
E   ImportError: No module named 'minitwit'
_____ ERROR collecting examples/patterns/largerapp/tests/test_largerapp.py _____
ImportError while importing test module '/home/begueradj/flask/examples/patterns/largerapp/tests/test_largerapp.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
examples/patterns/largerapp/tests/test_largerapp.py:1: in <module>
    from yourapplication import app
E   ImportError: No module named 'yourapplication'
!!!!!!!!!!!!!!!!!!! Interrupted: 3 errors during collection !!!!!!!!!!!!!!!!!!!!
=========================== 3 error in 2.78 seconds ============================

我的环境是：

• Ubuntu 16.04 LTS
• Python 3.5.2
• pytest 3.0.7 版

为什么会发生这种情况以及如何解决？

Answer 1

现在 Flask 1.0 已经发布，pytest 将仅在 tests 目录中运行测试。安装示例后，使用pytest tests examples 测试两者。

pip install -e examples/tutorial
pip install -e examples/javascript
pytest tests examples

---

贡献文档 are 已过期，您需要运行 pytest tests。如果您想测试示例（这是现在失败的原因），您需要像 tox 那样安装它们。

pip install -e examples/flaskr
pip install -e examples/minitwit
pip install -e examples/patterns/largerapp
pytest

---

或者，运行 tox -e py 运行整个测试套件，或运行 tox 在所有受支持的 Python 版本上运行套件。