It's an interesting hole that the test cases don't cover any of Microsoft Office, Windows Explorer, PowerShell's various cmdlets, or the several major .NET ZIP archive libraries. It would seem that the author just does not use Microsoft Windows.

There's a whole extra level of archive file format tooling gotchas that one misses out on when one assumes "UNIX" for everything, and does not account for "FAT", "NTFS", "HPFS", and even "OpenVMS".

Or ZIP64. (-:

* https://github.com/dotnet/runtime/blob/main/src/libraries/Sy...

* https://github.com/mihula/ProDotNetZip/blob/main/src/Zip/Zip...