FA-36832 / Tab interfaces / Member archive

Multirow tab strip: active row painted y · case 02

The tab workspace reports an incorrect active row painted y.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

A multirow strip greedily packs indivisible tab widths with exact fits allowed. The active tab row is painted adjacent to content after other rows; tab identity and within-row coordinates follow this row permutation.

Why this case matters

Offline tab/panel workspace behavior; no browser or desktop framework is emulated.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
workspace regression 2	`[[[0, 1], [2, 3]], 0, 0, [[2, 3], [0, 1]], 0, [2, 3, 0, 1]]`	`[[[0, 1], [2, 3]], 0, 0, [[2, 3], [0, 1]], 48, [2, 3, 0, 1]]`	Failed

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

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