FA-4710 / Multiset accounting / Member archive
Counter total includes negative and zero · case 05
The operation returns a result or retained state that violates this contract: The total sums all signed counts, including negative entries rather than counting expanded positive elements.
Case scope
A controlled failure with recorded boundary checks.
Why this case matters
A controlled local-runtime regression for collection APIs, language semantics, or ownership wrappers. Fixtures include boundary and interaction cases.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| negative offsets positive | 3 | 1 | Failed |
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