This looks useful! I'm surprised that no resources I have found talk about testing in detail. I also like that it's only 7 days. Signing up!

I started testing with Jest just by tossing it into any new projects I would begin working on. Forcing myself to follow the documentation and write tests for my code definitely helped me see the benefit, and now it means I don’t have to write weird demo scripts for my libraries, I can be confident my code works for most cases, and I can catch bugs as I introduce them. I’ve really enjoyed writing my tests in tandem with my coding, and sometimes I even find myself writing tests first and then implementing to get the tests to pass.

As for learning resources, I found the part that took me the most time to understand was what exactly a test was supposed to do. The best advice I can give is to just imagine you were using this package in another project, or imagine that you’re writing some example code. Then ask yourself, “what did I start with before calling this code?” “What do I get after running the code?” “Is this what I expected?” Tests are one of the most controversial topics in programming, just because everyone has their own opinions about how it should be done. I would recommend reading a little more about general testing paradigms, then sticking with what makes the most sense to you, and what helps you the most.

Test frameworks are a dime a dozen, as are articles that help you get from nothing to a project that you can start writing tests in. Remember, everyone does testing differently, so it’s only natural that there should be choices! If you have an existing project, or something small you’ve been wanting to make, I’d highly recommend just writing a test or two and seeing what you learn! Remember, tests aren’t required, they serve to give YOU and other developers peace of mind!

If you have any questions about testing, feel free to PM me and I’ll help in any way I can!