anchor.diff:  		when TestCase == send_initial_scur; TestCase == receive_initial_scur;
   		TestCase == send_interim_scur; TestCase == receive_interim_scur;
   		TestCase == send_final_scur; TestCase == receive_final_scur;
  -		TestCase == receive_interim_no_usu_scur ->
  +		TestCase == receive_interim_no_usu_scur;
  +		TestCase == receive_initial_empty_rsu_scur ->
   	Address = ?config(diameter_acct_address, Config),
   	{ok, _} = ocs:add_client(Address, undefined, diameter, undefined, true),
   	Config;
  
positive.code: 			'CC-Total-Octets' = [InputOctets + OutputOctets]},
  	MultiServices_CC = #'3gpp_ro_Multiple-Services-Credit-Control'{
  			'Requested-Service-Unit' = [RequestedUnits], 'Service-Identifier' = [1],
  			'Rating-Group' = [2]},
  	ServiceInformation = #'3gpp_ro_Service-Information'{'PS-Information' =
  			[#'3gpp_ro_PS-Information'{
  
negative.code: all() ->
  	[send_initial_scur, receive_initial_scur, send_interim_scur,
  		receive_interim_scur, send_final_scur, receive_final_scur,
  		receive_interim_no_usu_scur, receive_initial_empty_rsu_scur].
  
  %%---------------------------------------------------------------------
  %%  Test cases
  