FA-94277 / Shift rostering labor rules / Member archive
Junior workers bid before senior workers · case 02
Newest hires take the most preferred shifts.
Case contract
workers [id, hire day, max shifts]; shifts id -> [start, end]; prefs id -> ordered shift ids. Bidding rounds repeat until nobody picks: in each round workers in seniority order (earlier hire day, then id) take their first preferred shift that is untaken and does not overlap a shift they already hold (touching is fine), one pick per round, until reaching their maximum. Return worker -> picks in order.
Why this case matters
Seniority bidding is a common contractual roster procedure; each rule change reallocates shifts.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| regression: seniority direction 1 | {"w0": ["s0"], "w1": ["s3"], "w2": ["s2"], "w3": ["s1"]} | {"w0": ["s0"], "w1": ["s3"], "w2": [], "w3": ["s2"]} | Failed |
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