TL;DR
This post is about heuristic that I discovered while I wrote rspec ruby test script. Heuristic can be applied in any situation when you investigate errors reported on file line number.
One of my test frameworks includes Ruby where I write test scripts in rspec. I like rspec because it represents domain specific language (DSL) that makes testing code more readable and maintainable.
So yo have been in situation when you run your test suite, and you get test run report that contains line numbers where your check failed.
You need to update your test script. If you start your edit from top to bottom, your script will be no more aligned with test report. Now you have to run test suite again in order to align it again, and that takes time.
It is time for bottom up heuristic. Start your edits from bottom up directions, and you will keep your test report with test script. You will save some test run cycles and become slightly more productive.
