"Vroom is for testing vim.

Let's say you're a vimscript author. You want to test your new plugin.
You could find a nice vimscript test suite, but that only lets you test
your vimscript functions. What you really want is a way to specify vim
commands — actual input keys that that the user hits — and then verify
vim's output."

Homepage: https://github.com/google/vroom
License: Apache 2.0