You aim for maximizing code paths in the minimum test cases. Test cases written correctly can be quickly reused with different input values. Design to test. Pro

You aim for maximizing code paths in the minimum test cases. Test cases written correctly can be quickly reused with different input values. Design to test. Prove your code through automated unit testing. Skipping proper test development leads to terrible tech debt when you try to maintain the code. Error paths are generally the place that doesn't get most coverage and those are where you crash a lot of programs. This stuff is elementary.