Automated white-box testing of .NET applications using PEX Framework

The PEX Framework is a Visual Studio 2010 Powertool for automated white-box testing of .NET applications. Implemented as a Visual Studio add-in, PEX was developed by Microsoft Research and can be downloaded here. Once installed, PEX lets you automatically generate test suites with high code coverage. Unlike other unit testing tools, PEX suggests fixes to potential bugs it detects in your code. PEX is capable of performing an analysis on your application's code, searching for boundary conditions, generating test cases, searching for assertion failures and ultimately reducing maintenance costs. In this article, I examine the PEX Framework and show how you can integrate it with Visual Studio to create better unit tests with high code coverage.

Andre Marion: Pex is definitely intriguing. What is Microsoft doing in the way of trying to catch up and develop tools like the Ruby community has, such as Rspec, Sinatra, Rake, Cucumber, Rails, etc...

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Article By Joydip Kanjilal

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