Acceptance Tests

These are the tests a build should satisfy before it is accepted as matching the intended system behavior.

Rendering and Export Acceptance

When QR is visible live, exported output includes QR.
When URL-art mode is active, export preserves URL-art readability and placement.
Selected export resolution controls actual render size.
Image aspect handling matches accepted panel behavior.

Every user-visible control added in a build is documented.
Every new scriptable function is reflected in commands-and-functions and scripting-interface docs.
No previously accepted requirement disappears from the docs.

Select tile 2: it should highlight instantly and should not activate on that first click.
Immediately click Download Thumbnail after selection: the button should acknowledge the click immediately and the JPEG should download automatically once ready, even if rendering was still in progress when clicked.
Select tile 3 and wait briefly, then click Download Thumbnail: the JPEG should begin downloading immediately with no extra preparation pause visible to the user.
After a rebuild, tile 1 should remain pre-armed so the first post-load click on tile 1 may activate immediately.
Changing output resolution, QR visibility, URL visibility, type visibility, or QR geometry must cause the selected tile’s JPEG pipeline to prepare the updated output rather than downloading stale data.

Press any button on a fast modern laptop: visible acknowledgment should begin immediately at button-down with no perceptible wait.
Rapidly press many different buttons in sequence: each newly pressed button should acknowledge instantly while previously animated buttons return to resting state.
No button should grow wider or taller while acknowledging input.
Press Download Thumbnail: the button should acknowledge instantly even if export or file preparation still takes longer.
In classroom or live-demo use, an observer should be able to tell immediately that the app registered the press before the resulting action finishes.

Press any button and hold the mouse or finger down: that button alone should show immediate visible acknowledgment before release.
While rapidly pressing different buttons, only the most recently pressed button should retain the active feedback state; earlier buttons should restore immediately.
The requested action may still be underway while the feedback animation continues. The system must not wait for the animation to end before starting the action.
Reload the wall repeatedly: startup focus must begin on tile 1 every time in the current non-shuffled build.