}

	// Nonexistent method
	args = &Args{7, 0}
	reply = new(Reply)
	err = client.Call("Arith.BadOperation", args, reply)
	// expect an error
	if err == nil {
		t.Error("BadOperation: expected error")
	} else if !strings.HasPrefix(err.Error(), "rpc: can't find method ") {
		t.Errorf("BadOperation: expected can't find method error; got %q", err)
	}

	// Unknown service
	args = &Args{7, 8}