On Thu, Mar 30, 2017 at 23:08 +0200, Ronny Pfannschmidt wrote:
> I do because we make something a "magical god function" again, more of the 
> rant tommorow.

God functions or objects are usually ones that do many different things.
Here, "pytest.raises" deals with the dependent code block's exception 
raising behaviour -- allowing None (to signal: no exception expected) 
does not change or much extend this functionality.

holger




> Gn8, Ronny
> 
> Am 30. März 2017 23:03:45 MESZ schrieb Bruno Oliveira <[email protected]>:
> >On Thu, Mar 30, 2017 at 4:32 PM holger krekel <[email protected]>
> >wrote:
> >
> >> It's a bit odd to introduce a new helper just for this particular
> >case.
> >> After skimming https://github.com/pytest-dev/pytest/issues/1830
> >> i'd prefer the mentioned pytest.raises(None) solution which lets
> >through
> >> all exceptions
> >> of the dependent code block.  Adding an example to the pytest docs
> >and
> >> extending
> >> the pytest.raises help string and implementation would be enough IMO.
> >> By contrast, adding a new helper feels like unneccessary clutter of
> >> the pytest.* namespace. The above would then be:
> >>
> >>  @pytest.mark.parametrize('inp, expectation', [
> >>      (-1, ValueError),
> >>      (3.5, TypeError),
> >>      (5, None),
> >>      (10, None)])
> >>  def test_bar(inp, expectation):
> >>      with pytest.raises(expectation):
> >>          validate_positive_integer(inp)
> >>
> >> where the parametrization is shorter and if one does not know
> >> what pytest.raises(None) means one could find it easily in the
> >> doc string or the pytest docs.
> >>
> >
> >I agree. Does anybody else still prefers the original proposal?
> >
> >Cheers,
> >Bruno.
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