Added test framework example

Here you go dude. I've set up an example of a test framework you can use. Just keep adding entries into the struct slice. Also, if you use my .vimrc and my plugins it will automatically format code for you, as well as automatically add / remove imports so you don't have to do that at all.

All of the other changes besides the function I've added were done by `gofmt` automatically.
This is the only other change I did besides the function I've added. The test was expecting 0 here so I assumed you made a mistake. Did you not run them?