如何在visual studio中调试mbunit / Gallio单元测试

I am trying to figure out how I can hit breakpoints in my unit tests that are written with MbUnit/Gallio. I tried running Gallio.Icarus, attaching vs debugger to it, the breakpoints weren't hit. Next I tried to start Gallio.Echo from project properties, but I was getting an error message, after supplying the dll, saying only .exe's can be tested. The unit test runs fine from Gallio.Icarus, however, I am unable to debug them.I am trying to figure out how I can hit breakpo