Learn how to view the contents of a subunit binary stream with the handy 'test results viewer' application.
https://www.youtube.com/watch?v=jkLtbmQxXYc

To install the application, you must first add my 'trv' ppa:

$ sudo add-apt-repository ppa:thomir/trv

Then update your package index files:

$ sudo apt-get update

Finally, install the application:

$ sudo apt-get install trv