Status: Valid
Owner: ----
Labels: Type-Defect Priority-High Testing

New issue 3823 by asmeu...@gmail.com: Travis tests keep timing out
http://code.google.com/p/sympy/issues/detail?id=3823

For some reason, Travis tests keep timing out. It is always just one test run, usually either Python 2.5 or Python 3.3. The rest run in a reasonable amount of time. This is annoying because Travis doesn't show a pull request as passing if one of the tests time out.

I hacked the test runner to print the run time for each file, and it appears that when the runs slow down, they slow down uniformly. See for example https://travis-ci.org/asmeurer/sympy/jobs/7132028 vs. https://travis-ci.org/asmeurer/sympy/jobs/7132029. In that branch (slow_travis) I have also manually set a hash seed and random seed where I observed a slow test run in a previous run (see the commit messages). I'm not sure if it is really the cause, though.

One solution would be to split the tests and doctests into separate builds. It would be great to figure out exactly what causes things to slow down, though.

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