Two bugs in the browser suite, both dating from step 7 adding eyes, brows and
teeth to the stage.
The shut-mouth check asked for exactly one tone on the whole canvas. That was
true when the stage held nothing but a mouth; since step 7 every frame carries
five or six tones whatever the mouth is doing, so the check failed on a correct
picture. Ask instead whether :mouth-dark is on the stage at all: nothing else
carries that tone, so it answers "is the interior drawn" without needing to know
where the mouth is. freeze_test already got this same rescoping; its browser twin
did not.
The failure went unnoticed because close() raced Chrome's own profile writes and
threw ENOTEMPTY out of main's `finally`, past the summary line and the
process.exit that reports the failure count. The suite therefore exited 2 and
printed no verdict whether it passed or failed. Teardown is now allowed to fail
out loud without taking the exit code with it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B87NVmiU36qQmN9gmFYnJ9
