The ability to quickly and easily(-ish) script vim is incredibly useful. At one point, because of environment constraints, the easiest way to run unit tests was

The ability to quickly and easily(-ish) script vim is incredibly useful. At one point, because of environment constraints, the easiest way to run unit tests was either to run them all or to specify the file I wanted to test. A little bit of googling and playing around and I had Vim read my current spec name, chop it up to find the correct source file name, spawn a terminal and run the test command using that source name anytime I wrote a change. Thankfully I’m somewhere with sane tooling that watches for changes and only runs relevant tests, but back then this little foray into “how do I make Vim do a thing” saved me a ton of time.