You have two test modules: test_math.py and test_string.py. You want to run only tests from test_string.py. Which command should you use?

medium Q9 of 15

PyTest - Test Organization

You have two test modules: test_math.py and test_string.py. You want to run only tests from test_string.py. Which command should you use?

Apytest -m test_string

Bpytest test_string.py

Cpytest --module=test_string.py

Dpytest --only=test_string.py

Step-by-Step Solution

Solution:

Step 1: Understand pytest command line options for running specific modules
pytest accepts file or directory names as arguments to run tests only from those locations.
Step 2: Identify correct command to run tests from a single module
Running pytest test_string.py runs tests only from that file. Other options are invalid or unsupported.
Final Answer:
pytest test_string.py -> Option B
Quick Check:
Run tests from a file by passing its name to pytest [OK]

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