src/zip/fixtures

Binary inputs for the Rust tests. Two archives, used by src/zip/tests.rs.

overlay-deflate.zip / overlay-stored.zip

Both hold the same thing — a miniature game-root overlay, which is the only shape a real package ever has:

Plugins/Pacenote/                                   (directory entry)
Plugins/Pacenote/config/                            (directory entry)
Plugins/Pacenote/sounds/                            (directory entry)
Plugins/Pacenote/config/pacenote/Rbr.ini            24 bytes, CRLF
Plugins/Pacenote/sounds/polish/male/Kamil/001.ogg   75 bytes
Plugins/Pacenote/sounds/polish/                     (directory entry)
Plugins/Pacenote/sounds/polish/male/                (directory entry)
aa/evil.txt                                         9 bytes

Three properties matter, and all three are why these are real archives rather than bytes this repository wrote:

• Not every directory is an entry. Plugins/ has no entry, and neither does the directory holding a nested file. An extractor that only created the directories it was told about would fail on the first real package.
• One is deflated, one is stored. -CompressionLevel NoCompression gives method 0 throughout; the default gives method 8. Both occur in the wild and both must read identically.
• aa/evil.txt is exactly as long as ../evil.txt. The zip-slip test renames it in place, in both the local header and the central directory, which turns a valid archive into a hostile one without moving a single offset — and without this project owning a zip writer.

Produced with PowerShell’s Compress-Archive, i.e. .NET’s own ZipArchive: the library that wrote every package the legacy installer ever read, and the one deploy/README.md tells an operator to use. Reading back an archive we had also written would only prove our two halves agree with each other.

To regenerate (from installer/):

$src = "$env:TEMP\zipsrc"
New-Item -ItemType Directory -Force "$src\Plugins\Pacenote\config\pacenote",
    "$src\Plugins\Pacenote\sounds\polish\male\Kamil", "$src\aa" | Out-Null
Set-Content -NoNewline "$src\Plugins\Pacenote\config\pacenote\Rbr.ini" "[PACENOTE]`r`nname=Kamil`r`n"
Set-Content -NoNewline "$src\Plugins\Pacenote\sounds\polish\male\Kamil\001.ogg" `
    ("OggS`0fake audio payload, repeated: " + ('x' * 40))
Set-Content -NoNewline "$src\aa\evil.txt" "harmless`n"

Compress-Archive "$src\Plugins","$src\aa" src\zip\fixtures\overlay-deflate.zip -Force
Compress-Archive "$src\Plugins","$src\aa" src\zip\fixtures\overlay-stored.zip `
    -CompressionLevel NoCompression -Force

The byte counts in src/zip/tests.rs come from the files above, so if you change the content, change the assertions with it.

What these fixtures cannot tell you

That the reader copes with the packages that actually exist. For that there is a MANUAL CHECK in src/zip/tests.rs which walks a directory of real ones:

$env:PACENOTES_ZIP_CORPUS = "D:\Games\RichardBurnsRally\.pacenotes\cache"
cargo test --target x86_64-pc-windows-msvc --lib every_real_package -- --ignored --nocapture

Any directory of real package zips will do. A game folder the installer has downloaded into is the easy one, since that is where its cache lives.