[Solved] Given this project structure: project/ app.py tests/ test_math.py utils/ test_utils.py Which files will pytest run by default when you run pytest in the project root? | PyTest

PyTest - Basics and Setup

Given this project structure:

project/
  app.py
  tests/
    test_math.py
    utils/
      test_utils.py

Which files will pytest run by default when you run pytest in the project root?

AOnly <code>tests/utils/test_utils.py</code>

BOnly <code>tests/test_math.py</code>

CBoth <code>tests/test_math.py</code> and <code>tests/utils/test_utils.py</code>

DNo tests run because of subfolder

Step-by-Step Solution

Solution:

Step 1: Understand pytest recursive discovery
pytest looks inside the tests/ folder and all its subfolders for files starting with test_.
Step 2: Identify test files
Both test_math.py and test_utils.py match naming rules and are inside tests/ or its subfolder.
Final Answer:
Both tests/test_math.py and tests/utils/test_utils.py -> Option C
Quick Check:
pytest finds tests recursively in tests/ [OK]

Quick Trick: pytest finds test files recursively inside tests/ folder [OK]

Common Mistakes:

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