Each fixture contains one large.bin entry with a 67,108,864-byte (64 MiB) deterministic, repeated text pattern with a 2 KiB 0xFF prefix. The entry CRC-32 is f9081eb0.

Fixture	Archive API	Reader API
`Large.zip`	Yes	Yes
Generated `Large.tar`	Yes	Yes
`Large.gz`	Yes	Yes
`Large.rar`	Yes	Yes
`Large.7z`	Yes	No
`Large.tar.gz`	No	Yes

The compressible payload keeps the compressed fixtures small while requiring a full 64 MiB decompression to validate each API. The tests expand Large.tar.gz to a scratch Large.tar before exercising raw TAR support, so the 64 MiB TAR file is not committed.

Regenerating

The fixtures were created with zip, tar, gzip, RAR 7.22, and 7-Zip. Run these commands from a temporary directory after replacing <repo> with the repository root:

yes "SharpCompress large fixture" | head -c 67108864 > large.bin
printf '\377%.0s' {1..2048} > prefix.bin
dd if=prefix.bin of=large.bin bs=2048 count=1 conv=notrunc
touch -t 202001010000 large.bin
mkdir -p <repo>/tests/TestArchives/Archives/Large
zip -X -9 -j <repo>/tests/TestArchives/Archives/Large/Large.zip large.bin
COPYFILE_DISABLE=1 tar -cf large.tar large.bin
gzip -9 -c large.bin > <repo>/tests/TestArchives/Archives/Large/Large.gz
gzip -n -9 -c large.tar > <repo>/tests/TestArchives/Archives/Large/Large.tar.gz
rar a -ma5 -m5 -ep <repo>/tests/TestArchives/Archives/Large/Large.rar large.bin
7z a -t7z -mx=9 <repo>/tests/TestArchives/Archives/Large/Large.7z large.bin