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test(blob,manifest_consistency): sanity test on repair

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This commit is contained in:
Edouard Vanbelle
2026-09-02 22:18:43 +02:00
parent 2a629c4e8b
commit 49001e9beb
2 changed files with 65 additions and 0 deletions
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src/infrastructure/services/blobs_consistency_service.rs
+36
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@@ -569,4 +569,40 @@ mod tests {
fn empty_registry_refuses_to_build_page_statement() {
let _ = chunk_page_sql(&BlobReferenceRegistry::new());
}
/// Golden test — the repair statement is assembled from the same
/// registry as `chunk_page_sql`, so pin it byte-for-byte too. If
/// the registry ever changes what it produces at
/// `RefLevel::Chunk`, BOTH this test and
/// `chunk_page_statement_is_stable` above break together — an
/// operator using `?repair=true` shouldn't see the detection
/// formula report drift the repair formula can't clear.
///
/// Ships the two-term formula (`storage.files` legacy-path count +
/// `storage.chunk_manifests` chunk-membership count) twice — once
/// in SET, once in the `<>` guard. Both must stay identical so the
/// guard is meaningful.
#[tokio::test]
async fn chunk_repair_statement_is_stable() {
let sql = chunk_repair_sql(&default_registry());
let expected = r#"UPDATE storage.blobs b
SET ref_count = ((SELECT COUNT(*) FROM storage.files cnt_f
WHERE cnt_f.blob_hash = b.hash
AND NOT EXISTS (
SELECT 1 FROM storage.chunk_manifests cnt_m
WHERE cnt_m.file_hash = cnt_f.blob_hash
))
+ (SELECT COUNT(*) FROM storage.chunk_manifests cnt_m
WHERE b.hash = ANY(cnt_m.chunk_hashes)))::bigint
WHERE b.hash = $1
AND b.ref_count <> ((SELECT COUNT(*) FROM storage.files cnt_f
WHERE cnt_f.blob_hash = b.hash
AND NOT EXISTS (
SELECT 1 FROM storage.chunk_manifests cnt_m
WHERE cnt_m.file_hash = cnt_f.blob_hash
))
+ (SELECT COUNT(*) FROM storage.chunk_manifests cnt_m
WHERE b.hash = ANY(cnt_m.chunk_hashes)))::bigint"#;
assert_eq!(sql, expected, "chunk repair statement changed:\n{sql}");
}
}