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Pagination button state: Empty results display a nonexistent first page · case 04

Empty results display a nonexistent first page.

Member previewVariant 4 · 3 implementations · 13 checks per implementation

Case contract

Empty pagination uses page zero with disabled controls; nonempty page clamps to 1..pages; actions move by one or to endpoints; availability reflects resulting page.

Why this case matters

A deterministic model of pagination button state; 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 fixture	Actual	Expected	Outcome
empty	`[1, false, false]`	`[0, false, false]`	Failed

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