Test driven development in .NET

Several months after discovering TDD in Python thanks to Eric Jones, I don’t think I could develop anymore without it. Currently working on a different project in .NET, the first thing I did was re-installing NUnit (I already gave it a try several years ago, but without understanding how to use it, it was soon abandoned).

I have to admit that having a GUI for the test runner (compared to Nosetest) is better on the psychological point of view: having all those green and red lights is way funnier than a dark listing with a big “OK” at the end.

But NUnit runner also has its drawbacks, for instance there is no way to tell it to stay on the tray/taskbar even when pressing the close button. I don’t know if it would be a useful option but I have the (bad) reflex of closing windows instead of minimizing them, so I have to start NUnit like ten times a day. I also miss the “–pdb-failure” option a lot 🙂

I’ve recently read a book that was reviewed on Slashdot about unit testing and this, and combined with my previous experiments in Python, it completely changed the way I write code today. I think unit testing should really be taught in CS classes, as it improves software internal quality by so many orders of magnitude that it’s definitely worth the extra minutes spent writing tests.

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