The package provides a wrapper for pytest to be using conjunction with ROS.
To use the ros_pytest_runner use the following stanza in your .test launch file:
<launch>
<param name="test_module" value="$(find your_package)/src"/>
<test test-name="test_lib" pkg="ros_pytest" type="ros_pytest_runner" />
</launch>Make sure to pass your test path as parameter test_module to the runner.
A more elaborate description for why I created this ROS package can be found on my blog.
To run the unit tests use following command inside your ROS package catkin run_tests --this.
Then view the test results with: catkin_test_results