PR ci testing - add assertion messages

[pnasrat]

No description provided.

[travisbot]

This pull request fails (merged 75af797 into e0db44e).

[pnasrat]

Testing CI on Pull Requests successful - known flaky test as per Issue #530

[hltbra]

Hi @pnasrat,

I remember I always had trouble using nose and native python assertions because the lack of message help, and IIRC @RonnyPfannschmidt was trying to change nose by pytest in pip, and assertions were one of the reasons.

I think it would be nice to define a standard for assertions, like using nose's assert functions or change test runner for pytest.

Have you ever thought about it?

[pnasrat]

@hltbra There is a seperate issue already for looking at pip testing in general, which I hope to get to once I get back from travelling (ie in a few weeks).

This was really a simple pull request to trigger, but I did a meaningful but disposable changes to test the CI integration.

Thanks for the pointers, we definitely could do better here.