Add fake identity for VCSs

[jspricke]

This makes the unit tests self contained.

[wjwwood]

I updated the travis settings to only test current versions of Python which should fix the setup issues in CI, but several of the matrix entries just have failing tests.

[jspricke]

Looks like your update hid the test output and made Travis green :). For comparison, this is the corresponding Debian build log with the change and test output: https://buildd.debian.org/status/fetch.php?pkg=ros-wstool&arch=all&ver=0.1.13-3&stamp=1500371291&raw=0. It's running python3.6 -m unittest discover -v, maybe we should do that as well?

[wjwwood]

Looks like your update hid the test output and made Travis green :).

Good catch, it looks like coverage is not installed for some reason. It's really bad behavior that it shows all tests passing because it couldn't import coverage.

It's running python3.6 -m unittest discover -v, maybe we should do that as well?

I don't think we need to do that. nosetest should work as it was before.

[wjwwood]

Hmm, it seems like python setup.py nosetest is not working correctly... it might be a setting in the setup.py that is affecting this. I'll have to debug it some more. Maybe I'll switch to the unittest invocation that @jspricke suggested, but I wanted to keep nosetest in case it was using some nosetest specific API in the tests (I didn't check for this yet).

[wjwwood]

Ok, sorry, I got the tests running again (the test layout was confusing nosetest). I couldn't use your suggested invocation @jspricke because it doesn't do the coverage stuff I think.

Now that the tests are running again, it is failing with the no author issue. Can you have another look?

[coveralls]

Coverage remained the same at 81.992% when pulling 80d9026 on jspricke:fix_identity into c793ad8 on vcstools:master.

[jspricke]

@wjwwood thanks for fixing Travis. This should be fine now.

[wjwwood]

@jspricke thank you for iterating on it!