FA-26047 / Filter interfaces / Member archive

Endpoint validation matches both row identity and operand slot · case 02

Endpoint validation matches both row identity and operand slot is violated by the widget projection.

Member previewVariant 2 · 3 implementations · 10 checks per implementation

Case contract

Filter validation is attached to stable criterion IDs and operand slots. Server errors belong to the submitted revision and cannot move to neighboring rows after reordering. This example checks: Endpoint validation matches both row identity and operand slot.

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	`{"first-invalid-row": "a", "invalid-row-count": 2, "removed-row-errors": [{"id": "b", "message": "L", "slot": "lower"}, {"id": "a", "message": "U", "slot": "upper"}, {"id": "b", "message": "B", "slot": "upper"}], "row-error": ["U"], "server-error-revision": [{"id": "b", "message": "L", "slot": "lower"}, {"id": "a", "message": "U", "slot": "upper"}, {"id": "b", "message": "B", "slot": "upper"}], "slot-error": ["U"]}`	`{"first-invalid-row": "a", "invalid-row-count": 2, "removed-row-errors": [{"id": "b", "message": "L", "slot": "lower"}, {"id": "a", "message": "U", "slot": "upper"}, {"id": "b", "message": "B", "slot": "upper"}], "row-error": ["U"], "server-error-revision": [{"id": "b", "message": "L", "slot": "lower"}, {"id": "a", "message": "U", "slot": "upper"}, {"id": "b", "message": "B", "slot": "upper"}], "slot-error": []}`	Failed

MEMBER ARCHIVE

The complete case is available to members.

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

Member access is invitation-based. Sign in with your invited account to inspect the sources.