How do I run unit tests for a catkin package?

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The camera_info_manager package was converted to catkin, but I suspect an error: rostest is listed as a <build_depend> and a <run_depend>, rather than a <test_depend>.

I checked out an image_common catkin workspace using wstool. I can build those packages with catkin_make, but have not been able to figure out how to run the camera_info_manager unit tests.

I tried make test in every directory I could think of:

$ make test
make: *** No rule to make target `test'.  Stop.

Google has not revealed any answers. So, how is this done, now?

EDIT: I noticed that <test_depend>gtest</test_depend> was missing and added it. Still not running.