Tested Application Step 8: Look at the Gaps

Run coverage with branch reporting and ignore the percentage entirely. Look only at the uncovered branches, and for each decide: is this a gap worth closing, or code that does not need a test? Write down both lists. Then run your suite ten times in a row and fix or delete anything that failed even once. Finally, run it in a different order if your runner supports it, which is the fastest way to find tests that secretly depend on each other.