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Nearest-edge scroll reveal: Revealing an above-viewport item scrolls past its beginning · case 04

Revealing an above-viewport item scrolls past its beginning.

Member previewVariant 4 · 3 implementations · 11 checks per implementation

Case contract

Keep already-visible items stationary; reveal nearest edge; align oversized items at the start; clamp offset to the scrollable extent.

Why this case matters

A deterministic model of nearest-edge scroll reveal; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
above1510Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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