As BizTalk developers we all know that one of the common challenges is how to test your BizTalk solution once it is deployed to BizTalk. Hopefully most of us are using the BizUnit framework for testing, but we still have the limitation that it's a very Black Box test.

I have put together a sample and video to show a technique where I'm using the Logging Framework from the BizTalk CAT Team at Microsoft and where by BizUnit test is able to make assertions against the instrumentation going through the framework. This means that I can test for things happening such as the fact a component was executed or which branch of an orchestration was executed by simply using my normal instrumented code.

I've put the sample and video for this on the following codeplex site:

http://btsloggingeventsinbi.codeplex.com/

The video should also be on cloud casts fairly soon too.