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by IanCal
4095 days ago
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> I have in fact had to deal with exactly this problem in Hypothesis internals. Hah, wonderful. It's a great example of how this type of testing can really dig out odd bugs. Once you've tried property based testing, I think you never really trust things quite the same :) > The bug aryx is talking about though actually illustrates an amusing feature of Hypothesis, which is that the code in it is just weird enough that it tends to do unexpected things that trigger bugs which have nothing to do with the properties being tested Nice :) Thanks for releasing this library, it's great to see more work being done in this area. There are usually a few random testing libraries floating about but adding things like minimisation (and I'm still reading through the templating & other new stuff) really makes it stand out. The API testing example in particular actually comes at a perfect time for me, so it'll definitely be getting some use. |
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Oh god, tell me about it. So far I've hit 4 pypy bugs, 3 cpython bugs, two pytz bugs (one caused by a cpython bug), and I've learned far more about the edge cases of the language than I ever wanted to know.
Lets just not talk about the number of bugs I've found in Hypothesis itself in the course of testing bits of the system I was sure worked perfectly.