Add a very small test for the CLI
Add a very small test for the CLI

This adds a super small test suite for the CLI. Essentially to verify my
fix for #373 but we can build upon it later to test more stuff.

Part of #373

fredsod/NIPAP,SoundGoof/NIPAP,garberg/NIPAP,garberg/NIPAP,bbaja42/NIPAP,SoundGoof/NIPAP,SoundGoof/NIPAP,ettrig/NIPAP,bbaja42/NIPAP,SpriteLink/NIPAP,SoundGoof/NIPAP,plajjan/NIPAP,ettrig/NIPAP,fredsod/NIPAP,SpriteLink/NIPAP,garberg/NIPAP,plajjan/NIPAP,fredsod/NIPAP,ettrig/NIPAP,SoundGoof/NIPAP,SoundGoof/NIPAP,ettrig/NIPAP,plajjan/NIPAP,garberg/NIPAP,fredsod/NIPAP,fredsod/NIPAP,bbaja42/NIPAP,SpriteLink/NIPAP,ettrig/NIPAP,plajjan/NIPAP,bbaja42/NIPAP,fredsod/NIPAP,ettrig/NIPAP,garberg/NIPAP,bbaja42/NIPAP,garberg/NIPAP,SpriteLink/NIPAP,plajjan/NIPAP,plajjan/NIPAP,SpriteLink/NIPAP,SpriteLink/NIPAP,bbaja42/NIPAP