First off, Jupyter notebooks requires setup often unrelated to your work. Adopting the typical open source workflow is daunting: downloads, installs, upgrades, etc. Also, data files live outside notebooks and often not stored or tracked well. This breaks down quickly when you want to share or collaborate on a…
Great writeup that finally convinced me to start testing components in React Native. Have you tested with MobX observables?
Also, do you use any high level frameworks for ‘integration’ testing? Most of the hairy issues in my apps involve subtle layout or animation problems, cross platform inconsistencies, etc, which would not be caught by component tests.