}
	}
	err := batch.Add(101, 101)
	if err == nil || !errors.Is(err, ErrBatchFull) {
		t.Fatalf("Expected err %v but got %v", ErrBatchFull, err)
	}
	if !batch.IsFull() {
		t.Fatal("Expected batch.IsFull to be true but got false")
	}
	batchLen := batch.Len()
	if batchLen != int(limit) {
		t.Fatalf("expected batch length to be %v but got %v", limit, batchLen)
	}
	keys, items, err := batch.GetAll()