Tests succeed, still get traceback

Question

I\'m using Python\'s unittest library and all the tests succeed, but I still get a traceback and I can\'t understand how I can fix the problem.

Answer 1

sys.exit(not self.result.wasSuccessful())

I ran into this when I assumed my __main__.py in my Python package would always have the __name__, "__main__" - but when I ran my unittests through discovery there, I found that they would be executed but with a different __name__ - "package.__main__".

Therefore I did need the following in my __main__.py just like in simple Python scripts:

if __name__ == '__main__':
    main()

instead of just

main()

If the main is unittest.main, call it with

if __name__ == '__main__':
    main(exit=False)

if you want the process to stick around in interactive mode if you're calling

python -im package_name

If you're using:

python -m unittest discover 

then I don't think exit=False should matter.