Go into the Hydrant module in the web browser, and select the hydrant you would like to see. Towards the bottom of the page, Expand the "Flow Test History" tab Towards the end of each row, you will see the previous test information.
In the desktop app, go to the hydrant module, and select "Test Assignment". The left field shows the pool of hydrants. To see only unassigned hydrants, check the "Unassigned only" box, then search. After searching for only unassigned Hydrant Tests ...