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repository: test retries of ListPack

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This commit is contained in:
Michael Eischer 2024-05-09 21:39:52 +02:00
parent bf16096771
commit 987c3b250c
1 changed files with 36 additions and 0 deletions
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36
internal/repository/repository_test.go
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@ -295,6 +295,7 @@ func (be *damageOnceBackend) Load(ctx context.Context, h backend.Handle, length
return be.Backend.Load(ctx, h, length, offset, fn)
}
h.IsMetadata = false
_, retry := be.m.Swap(h, true)
if !retry {
// return broken data on the first try
@ -421,3 +422,38 @@ func TestInvalidCompression(t *testing.T) {
_, err = repository.New(nil, repository.Options{Compression: comp})
rtest.Assert(t, err != nil, "missing error")
}
func TestListPack(t *testing.T) {
be := mem.New()
repo := repository.TestRepositoryWithBackend(t, &damageOnceBackend{Backend: be}, restic.StableRepoVersion, repository.Options{}).(*repository.Repository)
buf := test.Random(42, 1000)
var wg errgroup.Group
repo.StartPackUploader(context.TODO(), &wg)
id, _, _, err := repo.SaveBlob(context.TODO(), restic.TreeBlob, buf, restic.ID{}, false)
rtest.OK(t, err)
rtest.OK(t, repo.Flush(context.Background()))
// setup cache after saving the blob to make sure that the damageOnceBackend damages the cached data
c := cache.TestNewCache(t)
repo.UseCache(c)
// Forcibly cache pack file
packID := repo.Index().Lookup(restic.BlobHandle{Type: restic.TreeBlob, ID: id})[0].PackID
rtest.OK(t, repo.Backend().Load(context.TODO(), backend.Handle{Type: restic.PackFile, IsMetadata: true, Name: packID.String()}, 0, 0, func(rd io.Reader) error { return nil }))
// Get size to list pack
var size int64
rtest.OK(t, repo.List(context.TODO(), restic.PackFile, func(id restic.ID, sz int64) error {
if id == packID {
size = sz
}
return nil
}))
blobs, _, err := repo.ListPack(context.TODO(), packID, size)
rtest.OK(t, err)
rtest.Assert(t, len(blobs) == 1 && blobs[0].ID == id, "unexpected blobs in pack: %v", blobs)
rtest.Assert(t, !c.Has(backend.Handle{Type: restic.PackFile, Name: packID.String()}), "tree pack should no longer be cached as ListPack does not set IsMetadata in the backend.Handle")
}