And if you’re feeling like doing some TDD, fastai needs your help to write tests. So pick an area/API you’d like to learn and write tests to deepen your understanding and then contribute those tests to the fastai test suite! Please see: Improving/Expanding Functional Tests, but instead of trying to write tests based on fastai “needs” as that thread indicates, write tests that meet your needs.
And the best way to learn how to write tests for DL is to study the existing fastai tests, Plus you will find a lot of tips here: https://docs.fast.ai/dev/test.html.