FA-7855 / Keyboard accessibility / Member archive
Sequential keyboard focus: Shift-tab advances in the wrong direction · case 05
Shift-tab advances in the wrong direction.
Case contract
Visit visible enabled nonnegative tabindex controls; positive tabindex precedes zero; ties retain document order and navigation wraps.
Why this case matters
A deterministic model of sequential keyboard focus; this isolates one interface invariant without requiring a browser.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| reverse | 2 | 0 | Failed |
MEMBER ARCHIVE
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