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Client persistence write transaction: Failed write retry buffer · case 05

Failed write retry buffer.

Member previewVariant 5 · 3 implementations · 60 checks per implementation

Case contract

A debounced local snapshot write commits saved data only after a permitted successful write. Failures retain dirty edits, no-op snapshots avoid writes, and timer deadlines include equality. Operation failed-write-retry-buffer has the six explicit input/output oracles below.

Why this case matters

An offline client lifecycle model that isolates a state-management defect without DOM rendering or network services.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
failed-write-retry-buffer scenario 2	`null`	`{"a": 0}`	Failed

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