How it works...

Creating temporary files and directories can be done using the ioutil package. Although you must still delete the files yourself, RemoveAll is the convention, and it will do that for you with only one extra line of code.

When writing tests, the use of temporary files is highly recommended. It's also useful for things such as build artifacts and more. The Go ioutil package will try and honor the OS preferences by default, but it allows you to fall back to other directories if required.