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From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: assertraises behaviour
Date: Tue, 17 Jul 2012 14:39:12 -0400
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Xref: csiph.com comp.lang.python:25532

On 7/17/2012 5:06 AM, andrea crotti wrote:

> Well this is what I meant:
>
> import unittest
>
> class TestWithRaises(unittest.TestCase):
>      def test_first(self):
>          assert False
>
>      def test_second(self):
>          print("also called")
>          assert True
>
> if __name__ == '__main__':
>      unittest.main()
>
> in this case also the second test is run even if the first fails.

Or test_first is run even if test_second fails. The point is that 
unittest runs separate test methods independently. They could 
theoretically be run simultaneously.

Tests within a method are dependent unless you take steps to make them 
independent by not having them raise exceptions or by catching exception 
as you go until you are done. If you make a error_list of problems as 
you go, you could end the method with assertFalse(error_list).

-- 
Terry Jan Reedy