// selectBlobs splits the list of all blobs randomly into two lists. A blob
// will be contained in the firstone ith probability p.
func selectBlobs(t *testing.T, repo restic.Repository, p float32) (list1, list2 restic.BlobSet) {
done := make(chan struct{})
defer close(done)
list1 = restic.NewBlobSet()
list2 = restic.NewBlobSet()
blobs := restic.NewBlobSet()
for id := range repo.List(restic.DataFile, done) {
entries, _, err := repo.ListPack(id)
if err != nil {
t.Fatalf("error listing pack %v: %v", id, err)
}
for _, entry := range entries {
h := restic.BlobHandle{ID: entry.ID, Type: entry.Type}
if blobs.Has(h) {
t.Errorf("ignoring duplicate blob %v", h)
continue
}
blobs.Insert(h)
if rand.Float32() <= p {
list1.Insert(restic.BlobHandle{ID: entry.ID, Type: entry.Type})
} else {
list2.Insert(restic.BlobHandle{ID: entry.ID, Type: entry.Type})
}
}
}
return list1, list2
}