anchor.diff:  	    {error, "no created response in my mailbox"}
       end.
   
  +test_receive_exact_cast(Match) ->
  +    test_receive_exact_signal({'$gen_cast', Match}).
  +
  +test_receive_exact_signal(Match) ->
  +    receive
  +	Match ->
  +	    ok
  +    after
  +	0 ->
  +	    io:format("ERROR: Expected message not received. Current messages for pid ~p :~n~p~n",
  +		      [self(), process_info(self(), messages)]),
  +	    Msg = io_lib:format("Did not receive the expected signal :~n~p", [Match]),
  +	    erlang:error(lists:flatten(Msg))
  +    end.
  +
  +test_no_more_messages() ->
  +    receive
  +        M ->
  +	    Msg = io_lib:format("Received signal when none was expected : ~p", [M]),
  +	    erlang:error(lists:flatten(Msg))
  +    after 0 ->
  +	    ok
  +    end.
  +
  +test_receive_tuple(Key) ->
  +    receive
  +	M when is_tuple(M), element(1, M) == Key ->
  +	    M
  +    after
  +	0 ->
  +	    io:format("ERROR: Expected message not received. Current messages for pid ~p :~n~p~n",
  +		      [self(), process_info(self(), messages)]),
  +	    Msg = io_lib:format("Did not receive the expected signal : tuple ~p", [Key]),
  +	    erlang:error(lists:flatten(Msg))
  +    end.
  
positive.code: 				   },
  		    {ok, NewRequest, FirstDst, BranchTimeout, NewState};
  		[] ->
  		    logger:log(debug, "sippipe: There are no more destinations to try for this target - " ++
  			       "telling server transaction to answer '500 No reachable destination'"),
  		    %% RFC3261 #16.7 bullet 6 says we SHOULD generate a 500 if a 503 is the best we've got
  		    {siperror, 500, "No reachable destination", []}
  	    end
      end.
  
  %%--------------------------------------------------------------------
  %% Function: get_next_target_branch(In)
  
negative.code:     autotest:store_unit_test_result(?MODULE, dnsutil_test_res, SGD_DNS_4),
      error = start_get_dstlist(THandler, SGD_Request4, 500, route),
  
      {604, "Does Not Exist Anywhere", [], <<>>} = test_get_created_response(),
      autotest:clear_unit_test_result(?MODULE, dnsutil_test_res),
  
      autotest:mark(?LINE, "start_get_dstlist/4 - 5"),
  