Python ideas are discussed here these days: https://discuss.python.org/ Suggest you raise this there in the Ideas category.
Barry > On 24 Jan 2024, at 17:11, Kerrick Staley via Python-list > <python-list@python.org> wrote: > > I think we should define a unittest.mock.NAN constant that can be used with > Mock.assert_called_with() to assert that an argument passed to a Mock was > NaN. NaNs are special in that math.nan != math.nan, so you can't just do > assert_called_with(math.nan). The naming is meant to parallel > unittest.mock.ANY. > > Here is a reference implementation: > > class _EqNaN: > def __eq__(self, other): > return math.isnan(other) > > NAN = _EqNaN() > > The alternative is that users can just define this EqNaN class themselves > as needed in test code. I encountered the need to test for a NaN argument > today and was surprised to find that (as far as I can tell) there is no > pre-built solution to this in unittest or pytest. It feels like it should > be included in some standard library. > > - Kerrick > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
