Check whether a mouse button remains logically held while you drag for five seconds. The test uses pointer capture and browser button-state events to surface premature releases that can cause dropped selections, interrupted aim, broken drawing strokes or drag-and-drop failures.
A worn or contaminated switch can sometimes register a release even though your finger still feels physically pressed. In games this can interrupt aiming, charging or continuous fire; in desktop work it can drop a selection or end a drag unexpectedly.
Browsers report button state as part of pointer/mouse events. Continuous movement gives the page more opportunities to observe the held-state mask and makes the test more sensitive to a browser-visible release during the trial.
The test suppresses the normal context menu and middle-button scrolling behavior inside the diagnostic area where possible. Browser and operating-system behavior still varies, especially for auxiliary buttons and touchpad emulation.
For an intermittent problem, five to ten trials on the suspect button is a useful starting point. If only one button repeatedly releases early while another completes every hold, that comparison is more meaningful than a single failed attempt.
Yes. Any release before five seconds ends the trial, so keep your finger down until the page reports PASS.
Yes. The test specifically combines a held button with ongoing movement, which matches the basic input pattern used by dragging.
No. It means no browser-visible dropout occurred during that trial. Intermittent faults may require repeated testing.