[Solved] Given this folder structure: tests/ __init__.py test_math.py test_string.py What will happen when you run pytest tests/? | PyTest

PyTest - Test Organization

Given this folder structure:

tests/
  __init__.py
  test_math.py
  test_string.py

What will happen when you run pytest tests/?

Apytest will skip all tests because folder has __init__.py

Bpytest will run only <code>test_math.py</code> tests

Cpytest will raise an error because <code>__init__.py</code> is present

Dpytest will run all tests in both <code>test_math.py</code> and <code>test_string.py</code>

Step-by-Step Solution

Solution:

Step 1: Understand pytest test discovery in packages
pytest finds and runs all test files inside a test package folder when you run pytest on that folder.
Step 2: Effect of __init__.py on test discovery
The presence of __init__.py marks the folder as a package but does not prevent pytest from running tests inside.
Final Answer:
pytest will run all tests in both test_math.py and test_string.py -> Option D
Quick Check:
pytest runs all tests in package folder = D [OK]

Quick Trick: pytest runs all tests in package folder with __init__.py [OK]

Common Mistakes:

MISTAKES

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