FA-12042 / Sensor fusion consistency / Member archive

Arrival time makes an old measurement look fresh · case 02

Delayed sensor samples enter the current fusion window.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

Return IDs in input order whose acquisition timestamp is between now-window and now inclusive. Records are (ID, acquired, arrived); window is nonnegative.

Why this case matters

Deterministic sensor-fusion model isolating one consistency contract; no hardware or production estimator is simulated.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
delayed stale sample	`["a"]`	`[]`	Failed

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