I want to execute specific test suite of another project

I am using gradle 1.0 milestone3,

I have two projects, ProjectA and ProjectB, now ProjectA has testSuiteBuilder() with three suite in it, and i want to run a specific test suite from ProjectB, when i ran ProjectB:build command.

Or is there a way that from ProjectB and i can create custome sourceset which refers to ProjectA test directories.