anchor.diff:      httpc:request(post, {?WEBMACHINE_URL++"/users", [],"application/json", "{\"username\" : \""++User1++"\"}"}, [], []),
       httpc:request(post, {?WEBMACHINE_URL++"/users", [],"application/json", "{\"username\" : \""++User2++"\"}"}, [], []),
   	api_help:refresh(),
  -	{ok, {{_Version1, 200, _ReasonPhrase1}, _Headers1, SBody1}} = httpc:request(post, {?WEBMACHINE_URL++"/streams", [],"application/json", "{\"name\" : \"Stream1\",\"user_id\":\"tomas\"}"}, [], []),
  -	{ok, {{_Version2, 200, _ReasonPhrase2}, _Headers2, SBody2}} = httpc:request(post, {?WEBMACHINE_URL++"/streams", [],"application/json", "{\"name\" : \"Stream2\",\"user_id\":\"tomas\"}"}, [], []),
  +	{ok, {{_Version1, 200, _ReasonPhrase1}, _Headers1, SBody1}} = httpc:request(post, {?WEBMACHINE_URL++"/streams", [],"application/json", "{\"name\" : \"Stream1\",\"user_id\":\"tomas\", \"min_val\": \"0.0\" , \"max_val\": \"1.0\"}"}, [], []),
  +	{ok, {{_Version2, 200, _ReasonPhrase2}, _Headers2, SBody2}} = httpc:request(post, {?WEBMACHINE_URL++"/streams", [],"application/json", "{\"name\" : \"Stream2\",\"user_id\":\"tomas\", \"min_val\": \"0.0\" , \"max_val\": \"1.0\"}"}, [], []),
   	StreamId1 = lib_json:to_string(lib_json:get_field(SBody1,"_id")),
   	StreamId2 = lib_json:to_string(lib_json:get_field(SBody2,"_id")),
   	api_help:refresh(),
  
positive.code: 		http:post(?WEBMACHINE_URL++"/users", "{\"username\" : \""++User1++"\"}"),
  		http:post(?WEBMACHINE_URL++"/users", "{\"username\" : \""++User2++"\"}"),
  		api_help:refresh(),
  		{200, Body1} = http:post(?WEBMACHINE_URL++"/streams", "{\"name\":\"Stream1\",\"user_id\":\""++User1++"\"}"),
  		{200, Body2} = http:post(?WEBMACHINE_URL++"/streams", "{\"name\":\"Stream2\",\"user_id\":\""++User1++"\"}"),
  		api_help:refresh(),
  		StreamId1 = lib_json:to_string(lib_json:get_field(Body1,"_id")),
  		StreamId2 = lib_json:to_string(lib_json:get_field(Body2,"_id")),
  
negative.code: 		http:post(?WEBMACHINE_URL++"/users", "{\"username\" : \""++User1++"\"}"),
  		http:post(?WEBMACHINE_URL++"/users", "{\"username\" : \""++User2++"\"}"),
  		api_help:refresh(),
  		{200, SBody1} = http:post(?WEBMACHINE_URL++"/streams", "{\"name\":\"Stream1\",\"user_id\":\""++User1++"\", \"min_val\": \"0.0\" , \"max_val\": \"1.0\"}"),
  		{200, SBody2} = http:post(?WEBMACHINE_URL++"/streams", "{\"name\":\"Stream2\",\"user_id\":\""++User1++"\", \"min_val\": \"0.0\" , \"max_val\": \"1.0\"}"),
  		api_help:refresh(),
  		StreamId1 = lib_json:to_string(lib_json:get_field(SBody1,"_id")),
  		StreamId2 = lib_json:to_string(lib_json:get_field(SBody2,"_id")),
  