Printing test execution times and pinning down slow tests with py.test

python pytest
Mikko Ohtamaa picture Mikko Ohtamaa · Jan 11, 2015 · Viewed 20.1k times · Source

I am running unit tests on a CI server using py.test. Tests use external resources fetched over network. Sometimes test runner takes too long, causing test runner to be aborted. I cannot repeat the issues locally.

Is there a way to make py.test print out execution times of (slow) test, so pinning down problematic tests become easier?

Answer

Bruno Oliveira picture Bruno Oliveira · Jan 12, 2015

I'm not sure this will solve your problem, but you can pass --durations=N to print the slowest N tests after the test suite finishes.

Use --durations=0 to print all.

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