test(gc): ensure adding and deleting a tag doesn't affect gc

Author: b5

src/store/gc.rs

@@ -266,13 +266,15 @@ mod tests {
         let et = blobs.add_slice("e").temp_tag().await?;
         let ft = blobs.add_slice("f").temp_tag().await?;
         let gt = blobs.add_slice("g").temp_tag().await?;
+        let ht = blobs.add_slice("h").with_named_tag("h").await?;
         let a = *at.hash();
         let b = *bt.hash();
         let c = *ct.hash();
         let d = *dt.hash();
         let e = *et.hash();
         let f = *ft.hash();
         let g = *gt.hash();
+        let h = ht.hash;
         store.tags().set("c", *ct.hash_and_format()).await?;
         let dehs = [d, e].into_iter().collect::<HashSeq>();
         let hehs = blobs
@@ -292,6 +294,7 @@ mod tests {
         store.tags().set("fg", *fghs.hash_and_format()).await?;
         drop(fghs);
         drop(bt);
+        store.tags().delete(ht.name).await?;
         let mut live = HashSet::new();
         gc_run_once(store, &mut live).await?;
         // a is protected because we keep the temp tag
@@ -313,6 +316,9 @@ mod tests {
         assert!(store.has(f).await?);
         assert!(live.contains(&g));
         assert!(store.has(g).await?);
+        // h is not protected because we deleted the tag before gc ran
+        assert!(!live.contains(&h));
+        assert!(!store.has(h).await?);
         drop(at);
         drop(hehs);
         Ok(())