FA-12288 / Power metering accounting / Member archive

A replacement meter opening register becomes billed energy · case 03

A replacement meter opening register becomes billed energy.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

Rows [meter_id, cumulative] are chronological readings. Each meter identifier appears in one contiguous run. Return sum of within-meter consecutive increases; first reading of each meter is a baseline. Readings never decrease within a meter.

Why this case matters

Meter settlement depends on explicit register and tariff policies; this controlled model makes that policy observable.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
high replacement baseline	`306`	`12`	Failed

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