Determining which classes would benefit most from unit testing?

Posted by benoit on Stack Overflow See other posts from Stack Overflow or by benoit
Published on 2010-03-17T21:04:44Z Indexed on 2010/03/17 21:11 UTC
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unit-testing

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visual-studio

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tfs

I am working on a project where we have only 13% of code coverage with our unit tests. I would like to come up with a plan to improve that but by focusing first on the areas where increasing coverage would bring the greatest value. This project is in C#, we're using VS 2008 and TFS 2008 and out unit tests are written using MSTest.

What methodology should I use to determine which classes we should tackle first? Which metrics (code or usage) should I be looking at (and how can I get those metrics if this is not obvious)?

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