What is the ROI of Testing?

A question that pops up now and then is “What is the ROI of testing?” A Korean research paper from December 2011 tries to answer the question.

Reverse use of GIT bisect

Here is an interesting post on how to reverse GIT bisect to find fix-introducing commits instead of fault-introducing commits. It seems to me that using this would be helpful for anyone wanting to use the regression test selection (RTS) method we introduced a few years back.

Check my publications page for more details.

One-liner test cases

There are many kinds of testing. Detailled scripted manual test cases are quite popular but an article at testzonen.se might be an eye-opener if that is your favourite kind of test case. According to the article, these test cases are a waste of time and effort and demeaning to the testers. Instead they advocate a form of test cases which they call “one liners”.

This is quite contrary to the trend towards automated testing which I have written about so often before… Or is it? I guess the main lessons to be learned here are:

• There are a lot of different test tools, methods, practices, conventions etc
• Each of them has different advantages and disadvantages, risks and rewards
• It is important to choose the right one for the right situation
• Which requires expertise
• But in the end, any testing is probably better than no testing

Generating Whole Test Suites with SBSE

I find this rather exciting, generating / optimizing your whole test suite automatically.