Terry J. Reedy <tjre...@udel.edu> added the comment:
I agree with Paul about the wording. Note that the proposed platform-specific
catch and raise are for crypt.py, not test_crypt.py.
If a test module should be skipped entirely, import_module is correct. For
more refinement, test_idle has, for example,
tk = import_module('tkinter') # Also imports _tkinter.
if tk.TkVersion < 8.5:
raise unittest.SkipTest("IDLE requires tk 8.5 or later.")
Testing only continues if tkinter and _tkinter and tk >= 8.5.
I presume that crypt = import_module('crypt') will only continue if crypt and
_crypt, which is what you want. It is apparently not an error for _crypt to be
missing on unix, just an inconvenience for people who expect it.
FYI, Individual test classes and methods can be skipped with
@unittest.skipIf(condition, message) # example
@unittest.skipIf(sys.platform != 'darwin', 'test macOS-only code')
See the unittest doc for more, though apparently not needed here.
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<https://bugs.python.org/issue25172>
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