Project has no tests

Im still trying to figure out how tests will help me with my project, or even yet, how to implement it in my current iOS project, or if its even needed...

@Revenger ever written 2 hours straight of ugly code, tested manually each possible output for 1 hour and made it work.

Then, you refactor the ugly code to make it look prettier/readable and now you're not sure if it still works or if you broke something?

That's one of many things tests helps with. It's called regression