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Things I find awkward with unit test (and it might just be me) is Inwant to write a test like def testLotsOfWaysTofail(): d = {"Handle Null": (None, foobar

Things I find awkward with unit test (and it might just be me) is Inwant to write a test like def testLotsOfWaysTofail(): d = {"Handle Null": (None, foobar), "Don't allow under 13 to do it": (11, foobar), "or old age pensioner": (77,wobble)} for ... generate a unit test dynamically here I have built metaclasses, I have tried many different options. I am sure there is a near solution. But I never seem to have it right

oweiler 4y ago
What you are looking for is called property based testing
_dain_ 4y ago
isn't this just a parametrized test? or do you want to generate the test cases automatically like in property-based testing?
- lifeisstillgood 4y ago
  Yes parameterised testing. Just all the packages i have tried seemed to make it awkward to impossible - hence metaclasses
  - deleted 4y ago
    [deleted]
  - ckp95 4y ago
    Does this do what you want? https://github.com/ckp95/pytest-parametrize-cases https://github.com/ckp95/pytest-parametrize-cases @parametrize_cases( Case("handle null", age=None, x="foobar"), Case("don't allow under 13s", age=11, x="foobar"), Case("or old age pension", age=77, x="wobble"), ... # as many as you want ) def test_lots_of_ways_to_fail(age, x): with pytest.raises(ValueError): function_under_test(age, x)
    - lifeisstillgood 4y ago
      Just wanted to pop in and say ckp95 actually mailed me this reply in case I missed it. The extra effort kinda restored my faith in humanity - giving a shit about strangers problems matters these days. Nice one. cf https://youtu.be/wUyI3ssmj_U https://youtu.be/wUyI3ssmj_U