Comment 1 for bug 1311518

 4. Where is the test result? (when we use checkbox, it is under ./home/usr/.checkbox)

Test result location is defined by the launcher (typically it is /tmp/submission.xml but it can be anything you want). Have a look at the laucher source code (/usr/bin/canonical-certification-client is a good example). Also look at https://code.launchpad.net/~sylvain-pineau/checkbox/ui_profiles/+merge/211490 for a short list of available launcher settings.

Internal data is stored in ~/.cache/plainbox/sessions/ but you should not typically need to use it directly.