I am really trying to understand these flow comments that are coming up. Waiting for 4 seconds for tests to run or even a few seconds more just seems like a silly thing to get caught up on. If we are talking minutes than I can see that but single digit seconds?
If you've developed a workflow around the kind of automatic test suites that run on every save to a source file and provide instant feedback, a several second wait would seem to be potentially a significant rhythm break.
