MbUnit is an advanced unit testing framework. Jonathan de Halleux origonally wrote this framework and posted to The Code Project in the article MbUnit : Generative Unit Test Framework.

Peli joined Microsoft in early 2005 and MbUnit was founded as a opensource project under the leadership of Andrew Stopford

MbUnit is an extensible .Net test framework. As in NUnit, tests are created at runtime using Reflection and custom attributes. MbUnit differentiates itself from NUnit in it's extensibility model. It contains a number of tests that go beyond the simple unit testing, such as a greater assert range, pairwise testing, combinatorial testing, data oriented testing, etc...