After planning, the cli command rhcert-backend run -t hwcert/audio --device=Internal runs successfully only the Internal audio test. In the web UI, clicking the button to test Internal audio test results in hdmi test being run as well. If you don't have an hdmi sound device, it will not prompt you, but you will see the failure in the results.
Versions: Rhel 3.10.0-327.el7.x86_64 redhat-certification-hardware 1.7.1-20151112.el7 redhat-certification redhat-certification-2.0-20151111.el7.noarch redhat-certification-backend redhat-certification-backend-2.0-20151111.el7.noarch