FA-11397 / Accessibility interaction semantics / Member archive

Removing a presentational wrapper deletes its meaningful descendants · case 02

A text-bearing child disappears when its structural wrapper has no exposed role.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

Input is preorder [id,parent,presentational] with unique IDs and earlier parents. Return [id,exposed_parent] for nonpresentational nodes. Presentational nodes disappear but their descendants retain the nearest nonpresentational ancestor, or None.

Why this case matters

A controlled offline accessibility-data model. It isolates the stated contract; it does not simulate browser accessibility APIs or claim full ARIA conformance.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
nested wrapper	`[["a", null]]`	`[["a", null], ["2", "a"]]`	Failed

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