xl.meta roundtrip coverage was one fixed example test plus byte-level no-panic
fuzz properties; nothing generated STRUCTURED version graphs, so a lossy
encoding bug in version headers, ordering, delete markers, or the dual
internal-metadata-key handling would only surface if the fixed example happened
to hit it.
Add crates/filemeta/tests/version_graph_roundtrip_proptest.rs with two
generated-input properties over multi-version graphs (1-7 versions, ~30% delete
markers, deliberately colliding mod_times to exercise tie-break ordering, user
metadata, and the AGENTS.md dual x-rustfs-internal-*/x-minio-internal-* keys
written via the real insert_bytes helper):
- version_graph_marshal_load_roundtrip: marshal -> load preserves version
count, meta_ver, the exact (id, type) sequence, full headers, fully decoded
per-version content, delete-marker payload shape, and both internal metadata
key forms with identical values.
- version_graph_marshal_is_idempotent: marshal(load(marshal(x))) is
byte-identical to marshal(x), catching encoders that mutate or reorder state
on the way out.
Complements the existing byte-level no-panic properties: those prove hostile
bytes cannot crash the decoder; these prove honest graphs are encoded
losslessly.
Refs: backlog#1151 (sec-10)
test(interop): real-MinIO read + migration parity, Phase 1/2 (backlog#580)
Capture authentic on-disk fixtures from MinIO RELEASE.2025-07-23 (a bucket with
versioning, object-lock, lifecycle, tagging, quota, a public policy, SSE-S3
encryption, a webhook notification target, and a replication rule, plus inline /
versioned / multipart objects and a delete marker) and prove RustFS reads and
migrates them losslessly:
- filemeta parses_real_minio_object_xlmeta: small inline, two-object-version +
delete marker, and multipart object xl.meta parse to the expected FileInfo.
- ecstore parses_real_minio_bucket_metadata_blob_without_loss: the MinIO
.metadata.bin msgpack decodes via the PascalCase field names and
parse_all_configs loads all ten config types present (policy, lifecycle incl.
<ExpiryUpdatedAt>, object-lock, versioning, tagging, quota, notification,
encryption/SSE-S3, replication incl. DeleteMarkerReplication /
ExistingObjectReplication) without loss.
- ecstore reads_minio_inline_bucket_metadata_via_bitrot: MinIO inlines an object
body as [HighwayHash256 32B][body]; RustFS's BitrotReader with HighwayHash256S
verifies and yields the exact blob (the "inline_data 前缀不同" is that prefix).
- ecstore migrates_real_minio_bucket_metadata_end_to_end: on a throwaway 4-drive
local ECStore, a real MinIO .metadata.bin seeded under .minio.sys is migrated
into .rustfs.sys byte-identically for every config, exercising the Phase 2
source adapter (MIGRATING_META_BUCKET = ".minio.sys") through the object layer.
All four run as ordinary crate tests (nextest CI). Phase 4 (MinIO re-reading a
RustFS drive) is documented as out of scope for one-way migration.
Refs rustfs/backlog#580
Zhengchao An