On the "Test result view" we have, on claimed test a icon that display that the test is claimed, and with an overhead of the mouse, we can see to whom.

On non claimed test, would it be possible to add a quick action to claim to yourself ?

On the case of multiples failing test (10+) that would save us to open 10+ tabs.
While mass select could be useful, with this quick action button, a JS script could easily do the same