Python for Testing — quiz

You name a test file `helpers.py` with a function `def test_login(): ...`. pytest doesn't find it. Why?

• By default pytest only collects files matching test_*.py or *_test.py
• pytest requires every test to live inside a `class TestX` wrapper
• pytest can't find any tests under the project root without a config file
• pytest only discovers test files added to a config list