filtering works

When starting a single test method from within an IDE (IntellJ IDEA in my case), the tests results do not show up properly in the results tab.

Actual:
![actual](https://cloud.githubusercontent.com/assets/4005877/5477938/0b1bb488-8630-11e4-8c67-1b432d828f0a.png)

Expected:
![expected](https://cloud.githubusercontent.com/assets/4005877/5477943/13adbab0-8630-11e4-96d4-1f66622302f7.png)

Unfortunately, this fix doesn't cover running more than one test case at a time.