The new version of my PipelineTesting library is coming along nicely. I'm mostly done with the new API, though there are still a few changes that I'm pondering about. However, right now this is already implemented:

• Creating standard pipelines
• Creating pipelines from compiled types
• Building pipelines from scratch
• Adding document specifications and other things to pipeline contexts for execution
• Creating XML and Flat File Assembler and Disassembler components (only a couple of properties are not exposed at this point)

I may still decide to rename a few methods and I'm considering providing an alternative to the current MessageHelper class and its horrible interface. Meanwhile, here's the current state of the library :)

BizTalk, Testing