209: Testing argparse Applications

Test & Code

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How do you test the argument parsing bit of an application that uses argparse?

This episode covers:

Design for Test: Structuring your app or script so it's easier to test.
pytest & capsys for testing stdout
Adding debug and preview flags for debugging and testing
And reverting to subprocess.run if you can't modify the code under test

Also, there's a full writeup and code samples available:

Blog post: Testing argparse Applications
Code Repo

239 episoade

#Programming #Software Development #Python #Software #Brian Okken #Tech #Podcasting Education #Test