7z - LZMA2 Archive
A 7-Zip archive using LZMA2 compression, containing a small documented file tree. For testing 7z extraction and conversion.
- README.txt
- records.csv
- config.json
- notes.md
Specifications
- Format
- 7z (LZMA2)
- Members
- 4
- Encryption
- none
Testing contract
Expected to pass- Scenario
- Exercise 7z - LZMA2 Archive in its sevenzip workflow. A 7-Zip archive using LZMA2 compression, containing a small documented file tree.
- Expected result
- 4 members after reading the header with the documented fixture password when required; member paths: README.txt, data/records.csv, data/config.json, docs/notes.md; 715 uncompressed bytes. Declared feature checks: members=4; encryption=none.
What is a .7z file?
7z is the native archive format of 7-Zip, supporting high-ratio LZMA and LZMA2 compression, strong AES-256 encryption, and solid compression across multiple files. It bundles many files with a flexible header and typically outperforms ZIP on compression. It is popular for efficient archiving and distribution.
How to use this file
Use an example 7z to test 7-Zip-compatible extraction, LZMA decoding, solid-archive and multi-volume handling, and optional encrypted-archive support.
How to use this file for testing
“7z - LZMA2 Archive” is a deterministic Testaroo fixture for Conversion testing. The same content exported across many formats and linked as a group, so you can convert one and diff against the expected twin.
Documented properties for this file: 7z (LZMA2). Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such, expect parsers to fail loudly rather than silently accept them.
Archive fixtures are documented down to their member list (shown on this page) and are deliberately safe, no zip bombs, executables, or hidden payloads. Test extractors against nested, unicode, empty, and encrypted variants.
Generated by generation/archives.py. Free for any use, no attribution required, license.
Related files
- 7z7z - Password ProtectedA password-protected 7z archive (AES-256, encrypted header). The password is “novus-example”, printed here on purpose so you can test encrypted-archive extraction. Contains only harmless sample text.
- arAR - Empty Archive (magic only)The smallest valid archive in this catalog: the 8-byte ar magic and nothing after it. ar has no trailer record, so end-of-file is the only end marker, and this is what an empty static library or an empty .deb control archive looks like on disk.
- bz2BZ2 - Bzip2 Single FileA single text file compressed with bzip2: the container-free codec on its own, for testing decompression and codec detection.
- jsonConvert v2 Archive Member ManifestJSON ground-truth manifest for the canonical compressed-TAR twins, publishing each safe path, byte count, and full SHA-256 digest. Stable P8 artifact p8-convert-archive-member-manifest.
- txtConvert v2 Archive SHA-256 ListGNU-style SHA-256 list for the two canonical TAR members, preserving relative paths and full lowercase digests. Stable P8 artifact p8-convert-archive-sha256.
- zipConvert v2 Archive-Media ZIP ControlExisting-format ZIP/TXT media control combining a plain README and a WebVTT sidecar for nested media extraction checks Stable P8 artifact p8-convert-legacy-archive-media-control.
