[openstack-dev] [Infra][Devstack] Why aren't test-requirements.txt installed during test runs?

Clark Boylan clark.boylan at gmail.com
Fri Dec 27 00:06:02 UTC 2013

On Thu, Dec 26, 2013 at 3:49 PM, Jay Pipes <jaypipes at gmail.com> wrote:
> Hello all,
> When looking at a Solum patch in review [1], I wondered why Georgy needed to
> move fixtures, testresources, and httplib2 into requirements.txt [2] instead
> of test-requirements.txt, when those aforementioned dependencies are not for
> Solum itself, but rather the newly-introduced functional tests. When I asked
> Georgy on IRC, he mentioned that the gate doesn't install the dependencies
> in test-requirements.txt.
> I'm wondering why that is the case? Why bother having a
> test-requirements.txt at all, if we need to list test-specific dependencies
> in requirements.txt?
> Thanks in advance for answers!
> Best,
> -jay
> [1] https://review.openstack.org/#/c/64165
> [2] https://review.openstack.org/#/c/64165/9/requirements.txt
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The gate is made up of two major types of tests. The first are self
contained unittest like tests that rely on tox for their invocation
and the second are the devstack-gate tests that use the devstack-gate
project to configure and run tests. In both cases projects are
installed from source (with pip install $PATH_TO_PROJECT iirc) which
installs only the requirements.txt. These are the requirements needed
to run the project but not to test it. In the tox run tests you will
typically add the test-requirements.txt file to the testenv's dep list
in order to get those dependencies installed for testing. In
devstack-gate land no test-requirements are installed as these are
functional/integration tests and should be tested as normally

So it depends on which test was having trouble. If it was something
run by tox then tox.ini probably needs an update. This sounds like a
problem with the devstack-gate tests which are trickier because it
just does normal installs of projects before testing them and the test
framework is expected to pull in the test dependencies as its normal
dependencies. In this case I would probably update the job in question
to install the test-requirements as part of the pre_test_hook in

The reason for the difference in lists is requirements.txt is the
minimum to run the project. test-requirements.txt is the minimum
needed to run the unittests, doc builds, lint checks, and so on.


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