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Dataset deduplication: case variants survive text-key deduplication · case 05

case variants survive text-key deduplication.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Return the number of distinct Unicode case-folded strings. Whitespace and punctuation remain significant.

Why this case matters

This deterministic toy operation makes one dataset equivalence or representative rule explicit.

One recorded failure

Sample boundary fixture

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

Boundary fixtureActualExpectedOutcome
ASCII case duplicates21Failed

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

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