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Updating an early field moves the offsets of later fields · case 04

Updating an early field moves the offsets of later fields in the controlled document model.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Replace disjoint nonempty half-open ranges whose offsets all refer to the original string. Input edits may be unordered.

Why this case matters

Structured editing must preserve document semantics independently of visual rendering.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
document fixture 0"aqqZqqbYc""aqqqqqbZc"Failed

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