yacman tests take too long when they fail

[nsheff]

If it passes, pytest only takes a few seconds.

But if it fails, pytest is taking a minute and I have to cancel it. I wonder if it has something to do with the 'wait' function of yacman?

The errors that I'm seeing in these cases are:

        if totaltime >= wait_max:
>               raise RuntimeError("The maximum wait time has been reached and the lock file still exists.")
E               RuntimeError: The maximum wait time has been reached and the lock file still exists.

we need to streamline the tests so that even if they fail, fail quickly.

[nsheff]

Along similar lines; if the tests fail, then they leave behind lock files, which makes a repeated run of the test fail, even if the underlying cause is complete.

the tests need to clean up after themselves, even if interrupted, so that if run repeatedly they don't cause erroneous repeated failures.