> Doesn't that just mean that the tests were effective? Very effective. Especially if you consider that there weren't any ;). You can't get any better ROI of z

> Doesn't that just mean that the tests were effective? Very effective. Especially if you consider that there weren't any ;). You can't get any better ROI of zero effort! ;) Each project is different of course, and if you saw this in your project, than it would probably make sense to implement them. But all I'm saying is that this shouldn't be a hard rule. Look at the project, look at the current issues, track your bugs, and draw your own conclusions.