FA-25588 / Filter interfaces / Member archive

Bulk-change counts report newly added eligible choices · case 03

Bulk-change counts report newly added eligible choices is violated by the widget projection.

Member previewVariant 3 · 3 implementations · 10 checks per implementation

Case contract

Bulk selection acts on eligible visible choices, preserves hidden selections and reports mixed state over the eligible visible subset only. This example checks: Bulk-change counts report newly added eligible choices.

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	`{"all-visible": false, "bulk-added-count": 2, "clear-subset": [], "eligible": ["a", "b"], "mixed-visible": true, "select-union": ["a", "b"]}`	`{"all-visible": false, "bulk-added-count": 1, "clear-subset": [], "eligible": ["a", "b"], "mixed-visible": true, "select-union": ["a", "b"]}`	Failed

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