EcomDev breaks when adding an test class without tests inside

[sgrund]

When creating a new testclass without any test methods inside, EcomDev adds an Error Class "PHPUnit_Framework_Warning" with message "No tests found in class '...' to the tests array. EcomDev then tries to execute the "Warning" test.

I'm not sure if EcomDev is responsible for collecting the tests or if PHPUnit does this.