Add tests for exit code results
Add tests for exit code results

Summary: Adds more task tests that work based on the exit code of the future.

Reviewed By: c-ryan747

Differential Revision: D15600540

fbshipit-source-id: 7d6df67d747aaf69ef6bd64130bd76055e221d85

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl