pytest无法自动识别_test*测试文件问题求助

Hey there, let's work through why pytest isn't picking up your *_test.py files automatically, even though running them directly works. Here are the most common fixes to check step by step:

• Double-check file naming and working directory
  First, confirm your files match pytest's default discovery patterns: either test_*.py (starts with test) or *_test.py (ends with test). Also, make sure you're running the pytest command from the right folder—if your tests live in a subdirectory like tests/, you might need to run pytest tests/ instead of just pytest from the parent directory.

• Check for conflicting configuration files
  Look for files like pytest.ini, setup.cfg, or tox.ini in your project. These can override pytest's default discovery rules. For example, if there's a line like python_files = test_*.py (missing the *_test.py pattern), that's why your files aren't being found. Update it to include both patterns:

  [pytest]
  python_files = test_*.py *_test.py
  

• Verify pytest isn't ignoring your directory
  Pytest automatically skips directories like __pycache__, venv, node_modules, or any folder starting with a dot. If your tests are in one of these, move them to a valid folder. Also check .gitignore or .pytestignore files—custom ignore rules here might be blocking your test files.

• Force discovery with explicit flags
  To rule out configuration issues, try forcing pytest to use your desired pattern directly from the command line:

  pytest --python-files "*_test.py"
  

  If this works, it means your default configuration was overriding the expected discovery pattern.

• Check test function naming
  Even if the file is found, pytest only runs functions that start with test_. Make sure your test functions follow this convention (e.g., def test_my_feature(): instead of def my_test_function():). Use pytest --collect-only to see exactly which tests pytest detects—this will show you if the file is being found but the functions aren't.

• Update pytest to the latest version
  Older pytest versions might have bugs or different default behaviors. Run pip install --upgrade pytest to get the latest release, then try again.

If none of these steps resolve the issue, sharing details like your project file structure, any existing config files, or the exact commands you're running would help dig deeper!

内容的提问来源于stack exchange，提问作者Raghav