void () { setContent(f, "1", TIMESTAMP_INCREMENT); setContent(f, "2", TIMESTAMP_INCREMENT * 2); assertContentAt(0, null); assertContentAt(TIMESTAMP_INCREMENT, "1"); assertContentAt(TIMESTAMP_INCREMENT + TIMESTAMP_INCREMENT / 2, null); assertContentAt(TIMESTAMP_INCREMENT * 2, "2"); assertContentAt(TIMESTAMP_INCREMENT * 3, null); }