I don't understand the line of thought that automated tests are too time consuming to add. You know what's more time consuming? Manual testing. It takes forev

I don't understand the line of thought that automated tests are too time consuming to add. You know what's more time consuming? Manual testing. It takes forever. And if you have to fix a bug somewhere, have fun manually testing everything again, if you can even remember all the manual tests you should be running. For example, a project I work on is available in Asia. They put their last name first. So anything related to names needs 2 tests to make sure it works right. Oh, there is legacy data, so customers might be missing first, last, or both names. So add another 3 tests onto the pile. You're looking at 5 tests right there. Let's say the feature you're working on related to names has 3 dimensions. Well, now you potentially have to run 5*3=15 tests. If one of those fails and you bugfix, you have to re-run those tests. Have fun with that if your tests are manual.