Testing Vim plugins is cumbersome. This makes it marginally easier to
test the Vim-Vroom plugin. It basically gives you a couple of
directories in which you can run your tests with basic options
configured. CD your way into, e.g., test-unit, run ./start_vim, and
then try out vroom#RunTestFile() to see that it works. Same with the
other directories (there you can also try vroom#RunNearestTest().
It's not much, but it is something.