Steven D'Aprano <[email protected]> added the comment:
I think that -m is unacceptable as it will clash with Python's -m option.
I'm not convinced that this added complexity will provide enough benefit to
make it worth while. I can see myself spending an order of magnitude more time
trying to work out why my test suffixes and indexes are selecting the wrong
tests than I would save.
The use of indexes to select individual tests within a single docstring is
especially fragile and error-prone since it requires counting by the user. It's
also likely to introduce artificial errors since tests can rely on side-effects
of previous tests, e.g.
>>> import math
>>> math.sqrt(25)
5.0
Selecting test number 1 alone will fail unless test number 0 is also run. For
these reasons, I think that in practice, the finest selection unit we can run
is a single docstring. Trying to select individual tests within a unit is
likely to be far too fragile and error prone to be practical.
So by my estimation, we have the following selections:
- module docstring alone
- named function or class docstring alone
- named class.method docstring alone
- named class and all its methods
----------
nosy: +steven.daprano, tim.peters
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<https://bugs.python.org/issue42797>
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