FA-25949 / Filter interfaces / Member archive

Pinned headers keep user pin order and exclude absent options · case 04

Pinned headers keep user pin order and exclude absent options is violated by the widget projection.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Facet ordering uses pinned then selected priority, descending known counts, and stable server order for ties; unknown counts sort behind known counts. This example checks: Pinned headers keep user pin order and exclude absent options.

Why this case matters

Filter-widget state and serialization must preserve user constraints while the view changes.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
contract fixture 0	`{"descending-count": ["c", "a", "b"], "pin-priority": ["b", "a", "c"], "pin-visible-only": ["a", "z", "b"], "selection-priority": ["b", "c", "a"], "stable-count-ties": ["c", "a", "b"], "unknown-last": ["a", "c", "b"]}`	`{"descending-count": ["c", "a", "b"], "pin-priority": ["b", "a", "c"], "pin-visible-only": ["a", "b"], "selection-priority": ["b", "c", "a"], "stable-count-ties": ["c", "a", "b"], "unknown-last": ["a", "c", "b"]}`	Failed

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