steveloughran commented on PR #16568: URL: https://github.com/apache/iceberg/pull/16568#issuecomment-4812499350
claude looking at your tests after taking the ones from the suite that
weren't in the parquet lib one and replicating
```
┌────────────────────────────────────────┬──────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Local test │
Why it's unique │
├────────────────────────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────┤
│ testWellFormedRoundTrip │ Happy-path baseline. Iceberg's
file is malformed-only, so it has no positive control. │
├────────────────────────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────┤
│ testEmptyMetadataRejected │ Zero-byte metadata →
IllegalArgumentException "empty". No empty-metadata case in the Iceberg 20. │
├────────────────────────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────┤
│ testSingleByteMetadataRejected │ Lone version byte (below the
3-byte spec minimum) → "truncated". No analog. │
├────────────────────────────────────────┼──────────────────────────────────────────────────────────────────────────────────────────────────┤
│ testUnsupportedMetadataVersionRejected │ Version bits ≠ 1 →
UnsupportedOperationException. Iceberg has no version-check test. │
└────────────────────────────────────────┴──────────────────────────────────────────────────────────────────────────────────────────────────┘
```
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