pytest: If a crash/segfault/etc. occurs during testing, is there a way to make pytest log the crash as a test failure and continue testing?

Question

I have a few unit tests written using pytest that have successfully caused segfaults to occur. However if a segfault occurs (on my Mac) during these execution, pytest seems to quit altogether and provide no information on what caused the python interpreter to crash.

Now I could infer from the logs the specific test that was crashing and determine the values used within, but I was wondering if there was any way to be able to somehow log the crash as a regular test failure and keep iterating through my tests without stopping?

If helpful, I can try to conceive an example but I think the question should be pretty self-explanatory.

py.test is also running in Python, so if the interpreter crashes entirely so does the testing; there's no Python exception to catch and you will have to debug that at the OS level. — jonrsharpe
– jonrsharpe, Commented Aug 18, 2015 at 16:59
And where does one begin to look for that? The py.test log in my case shows the last thing to be done was executing a command that does not result in any crashes, so there's something else happening that pytest cannot see. — Zim
– Zim, Commented Apr 11, 2019 at 15:50

flub · Accepted Answer · 2015-08-21 12:28:10Z

6

Using the pytest-xdist plugin it will restart the nodes automatically when they crash, so installing the plugin and running the tests with -n1 should make py.test survive the crashing tests.

answered Aug 21, 2015 at 12:28

flub

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