FA-7765 / Connection lifecycle / Member archive

Happy eyeballs winner cancels only other attempts · case 05

Happy eyeballs winner cancels only other attempts.

Member previewVariant 5 · 3 implementations · 4 checks per implementation

Case contract

Given attempts, winner, happy eyeballs winner cancels only other attempts. Return the protocol decision or transformed value; fields are validated and fixtures state boundary outcomes.

Why this case matters

This deterministic connection lifecycle model isolates the happy-eyeballs-winner-cancels-only-other-attempts policy at a network component boundary.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
fixture 4	`["v6"]`	`[]`	Failed

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