Footgun #9 - Slow Tests
This mini-post is part of a series about good testing practices, which I also presented at a couple of conferences. Here it is in PyCon US 2023 Slow tests are not fun. In this post, I’ll talk about two ways in which they are not fun The bottleneck and the time bomb The feedback loop and the bug funnel The bottleneck and the time bomb The bottleneck here is where the tests take so long to run, that we have a long queue of tasks waiting to be merged to the main branch. (this assumes we’re merging tasks to the main branch one-by-one, and only after the tests pass. Other branching models have similar issues, but this is the simplest to explain) ...