I’ve just released a new open source project on codeplex: http://powerassert.codeplex.com
Power Assert .NET is a .NET port of Groovy’s PowerAssert, which replaces your normal unit test assertions.
Unlike the standard assertions built into nunit, MSTest, and xunit etc; Power Assert gives you a breakdown of all the values within your assertion expression, making it quicker for you to hunt down the cause of the test failure:
System.Exception : IsTrue failed, expression was:
x + 5 == d.Month * y
| | | | | | |
| | | | | | 6
| | | | | 18
| | | | 3
| | | 01/03/2010 00:00:00
| | False
| 16
11
It’s quite a simple little thing, but it’s already saved me lots of debugging time. Give it a go 
