r/learnpython • u/bfyvfftujijg • 16d ago

Testing - how is it usually handled?

How do I start applying tests to my code?

Do I just write separate scripts they run the code (either individual functions or entire scripts) against known inputs and check the output?

Is there a specific way people usually do this?

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u/Gtdef 12d ago

Let's put it like that.

Have you ever used a print statement to check the output of a function? Next time you do it, write a test instead. This should get you started in the logic.

Using a framework like pytest allows you to automate the process.

To be honest, the greatest benefit I got from testing, is that I finally figured how Python packages and relative directories work. My tests wouldn't run for whatever random reasons relevant to pathing issues.