Add tests/integration tests

[tbillington]

No description provided.

[tompscanlan]

Hi @tbillington I really like the project idea. Cleaning my code archive is something I do frequently, or I tend to run out of disk.

I think I saw #97 in the wild while playing around and didn't think anything of it until the issue was opened.

I'm new to rust, so really opening #98 as practice. Happy to discuss going this route or an alternative.

in #98, I've added a test filesystem, and a simple test that runs discover in the test filesystem and asserts the proper count of discovered projects.

If you hit a particular error, as in #97 , we can capture the important bit of the FS and store it as a test to work against. If it turns out to be nested projects, we just should be able to replicate that in this test structure.

Thoughts?

[tbillington]

It's looking good so far @tompscanlan , I commented in the PR with more details.

[tbillington]

Nested projects are a known issue #29. I have a larger refactor I'm slowly working on to solve it.