FA-8932 / Table interactions / Member archive

Multi-column sort interaction: New sort columns start descending despite ascending contract · case 02

New sort columns start descending despite ascending contract.

Member previewVariant 2 · 3 implementations · 10 checks per implementation

Case contract

New sort is ascending; activation cycles ascending to descending to removed when allowed; single mode replaces all sorts; multi mode preserves priorities when changing direction.

Why this case matters

A deterministic model of multi-column sort interaction; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
new	`[["a", "desc"]]`	`[["a", "asc"]]`	Failed

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