I'm currently trying to use Pex and Moles with a SharePoint 2010 solution that's written in .NET 3.5. When adding a test project (by using Pex -> Create parameterized tests) everything seems to work OK. However, when I try to compile I end up with a massive list of errors (missing namespaces and such) and warnings regarding referenced assemblies not being able to be resolved (such as System.Web which under .NET 4 is no single DLL anymore).
This is due to the projects under test is .NET 3.5 and the Pex test project is .NET 4.0 as far as I understand it, but is it possible to make this combination work at all?