FA-93848 / Shift rostering labor rules / Member archive

Rest gap computed as wall-clock difference modulo one day · case 03

Two days off between shifts looks like a short rest, and overlapping shifts disappear.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Input shifts as [worker, start, end] absolute minutes and a minimum rest "HH:MM". For each worker, walk shifts by start time, comparing each start with the latest end seen so far (and that shift index): a negative gap is an overlap, a gap below the minimum rest is short_rest; exactly the minimum is compliant. Return [worker, earlier index, later index, kind] rows ordered by worker then start.

Why this case matters

Rest-period validation is the most common roster labor rule; errors either hide fatigue risks or block legal rosters.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: clock wrap gap 1	`[["ana", 1, 2, "short_rest"], ["ana", 2, 0, "short_rest"]]`	`[]`	Failed

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