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Removing a module loses charge provenance · case 04

Pack removal subtracts module capacity instead of that module inventory.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Modules map unique identifiers to [charge,capacity]. Return total remaining charge after removing an existing identifier.

Why this case matters

An explicit synthetic battery bookkeeping model isolates this state-accounting error; it is not an engineering prediction or safety procedure.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
low module-432Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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