Test Legato app on the mangOH Red

How can I test the unit test Legato app on the mangOH Red development board? I know we can upload the app to the mangOH Red and start the app with app start. But how can I fetch the app status is failed or not?

Probably you need to understand the program flow and read if there is error message

Is there another way to read the app message from the logread?

you can fprint your message to a file