FA-12740 / Auction allocation rules / Member archive

A minimum-fill order is rejected despite sufficient aggregate counterparties · case 05

A minimum-fill order is rejected despite sufficient aggregate counterparties.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

For a buy size, minimum fill and already-price-compatible opposing sizes, aggregate available size; execute min(size,total) only if it is at least minimum, otherwise zero. Size >= minimum >=1; opposing sizes positive.

Why this case matters

Deterministic teaching model for reviewing auction allocation software; not a representation of any venue or financial advice.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
aggregate meets minimum	`0`	`5`	Failed

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