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Bounded body spooling for replay: Limit boundary violates retry transition semantics · case 04

Limit boundary violates retry transition semantics

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

open(memory threshold,total limit) begins capturing byte-list chunks. append stores an entire chunk only if total limit permits; crossing memory threshold spills all prior memory and new chunk to modeled disk. fail_disk invalidates captured body. seal finalizes; replay returns captured bytes only when sealed and valid. Overflow is terminal until next open. Return replay decisions and storage mode.

Why this case matters

Offline deterministic model of HTTP request retries.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
3	`[["overflow"], "memory"]`	`[["overflow"], "disk"]`	Failed

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