"It is funny how things turn around. For fifteen years I have been preaching TDD (Test-driven development, or as it used to be called: test-first approach), or at least for developers to write some unit tests. However, in recent times I have found myself saying more often, 'Why did you write that test?' instead of, 'You should write a test.'"
Daniel Lebrero on 18/05/2016
It presents some interesting opinions & views, worth to take a look...
It's in here: http://labs.ig.com/code-coverage-100-percent-tragedy
Have fun! :)