Test execution dependency for py_test

Question

I am writing an integration-test (py_test) for a Python library. Now it only makes sense to run this one if a set of other py_test unit-tests have successfully completed.

I could not yet find a way of adding such a testing-dependency in Bazel.

kristina · Accepted Answer · 2017-04-18 14:21:22Z

2

Sorry it is not possible.

An action cannot declare a dependency on a test action.

Maybe you can work around by doing only one test or by adding tags (phase1, phase2):

bazel test --test_tag_filter -phase2 //... && bazel test --test_tag_filter phase2 //...

edited Apr 18, 2017 at 14:21

kristina

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answered Apr 13, 2017 at 12:49

Damien Martin-Guillerez

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2 Comments

abergmeier Over a year ago

How far is this gone, though? Are there any run dependencies supported yet?

kristina Over a year ago

Right now, Bazel has a fairly strict separation between the phases of the build (compiling vs. execution). We're working on relaxing this so they can be interleaved, but it's a long way off (AFAIK). Theoretically, you could make running the unit test a "build" step (by executing them in a genrule) and then make the output of that a dependency of the integration tests. But that's super hacky, Damien's way is better.

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