FA-36854 / Table interactions / Member archive

Column track resolution: unlisted track · case 04

The table unlisted track result violates the stipulated column track resolution contract.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Resolve unique schema IDs in saved order then append unlisted visible columns; clamp widths to per-column bounds, keep explicit zero, compute prefix starts, omit a terminal resize handle, and use None for no terminal column.

Why this case matters

An offline table UI model isolates column track resolution, including adversarial row/column relationships.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
mixed schema	`{"handles": ["b"], "ids": ["b", "a"], "last": "a", "resizable": ["b"], "starts": {"a": 48, "b": 0}, "total": 58, "widths": {"a": 10, "b": 48}}`	`{"handles": ["b"], "ids": ["b", "a", "c"], "last": "c", "resizable": ["b", "c"], "starts": {"a": 48, "b": 0, "c": 58}, "total": 78, "widths": {"a": 10, "b": 48, "c": 20}}`	Failed

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

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