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Fresh body factories on retries: A fresh retry body inherits a consumed cursor · case 04

A fresh retry body inherits a consumed cursor

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

open sets a body factory recipe; attempt calls it to make a fresh cursor, read consumes the current body, change changes the recipe for future logical requests only, new snapshots the changed recipe. Return emitted chunks; attempts beyond allowance return exhausted. Recipe is snapshotted on open/new.

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
1	`["factory", [4, 5], [6], [], "factory", [], "exhausted"]`	`["factory", [4, 5], [6], [], "factory", [4, 5, 6], "exhausted"]`	Failed

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