@Test
public void test() throws Exception {

    byte[][] args = new byte[2][];
    args[0] = new byte[]{(byte) Command.DELETE.ordinal()};
    args[1] = "abc".getBytes();
    DeleteCommand d = new DeleteCommand(null);
    ReplyMessage reply = d.run(1, args);
    assertEquals(reply, ErrorMessage.WrongArgcMessage);
}