FA-53898 / Accessibility interaction semantics / Member archive

Text position at a link end still resolves to that link · case 03

Text position at a link end still resolves to that link.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

Input [text_length,links,offset] where links [id,start,end,url,enabled]. Admit only nonempty URL, enabled and nonempty interval after clamping. Sort by start then shorter interval then input order; dedupe IDs after sorting. Query offset resolves the first matching half-open span, or None. Return [ordered descriptors,hit_id]. URLs remain exact including fragments; IDs are retained even when URL is shared.

Why this case matters

Offline accessibility bridge model with explicit policy; useful for testing semantic API adapters independently of browser implementations.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
contract fixture 2	`[[["a", 0, 2, "/a"], ["b", 2, 5, "/b"]], "a"]`	`[[["a", 0, 2, "/a"], ["b", 2, 5, "/b"]], "b"]`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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