Errors when using LoadRunner with the Portal (eventQueue)

Question

Hi,
I'm trying to script up a basic load test of the SAP Portal using Load Runner HTTP/HTML protocol. I've dome some correlation but I'm finding the web_submit_data functions seem to be passsing garbage for the eventQueue (see below).
"Name=eventQueue", "Value=BUTTONCLICKîx80u201AIdîx80u201AaaabLDOL.VcRfwIFrameView.PrevButtonTopîx80u201ACurrentFocusIdîx80u201AaaabLDOL.VcRfwIFrameView.PrevButtonTop", ENDITEM,
My Question is what kind of data is passed in the eventQueue. I'm trying to navigate through payslips and expecting a pdf document to appear within the portal.
Let me know if you need anymore info.
Thanks
Gavin

Answer 1

Although this might be a late reply, im sure a lot of people are going to view it as a useful resource
Yes, this means that you about to test an SAP application written in Webdynpro, which means that there are some content that you need to convert in your code
the HP loadrunner script will look something like this
web_submit_data("sap-ext-sid_2",
  "Action=http://www.example.com:8000/sap/bc/webdynpro/SAP/ERC_A_WORKCENTER/;sap-ext-sid=",
  "Method=POST",
  "TargetFrame=",
  "RecContentType=text/html",
  "Referer=http://www.example.com:8000/sap/bc/webdynpro/SAP/ERC_A_WORKCENTER/;sap-ext-sid=",
  "Snapshot=t18.inf",
  "Mode=HTML",
  ITEMDATA,
  "Name=SAPEVENTQUEUE", "Value=Custom_ClientInfosE002IdE004WD01E005WindowOpenerExistsE004falseE005ClientURLE004http003A002F002Fwww.example.com003A8000002Fsap002Fbc002Fwebdynpro002FSAP002FERC_A_WORKCENTER002F003Bsap-ext-sid003DzuUt57Mx_3JozG7pOff002AEgU_0j6OHCaCQurUN1Pimp1QE003E002ClientActionE004enqueueE005ResponseDataE004deltaE003E002E003E001TimeTrigger_TriggerE002IdE004WDE4E003E002ResponseDataE004deltaE005ClientActionE004submitE003E002E003", ENDITEM,
  "Name=sap-charset", "Value=utf-8", ENDITEM,
  "Name=_client_url_", "Value=", ENDITEM,
  LAST);
when loadrunner executes the script, this kind of data transferred to SAP is not recognized, so you will need to plug in the below code and run the script and before that block of loadrunner recorded script, you will need to pass the sapqueueevent as a string
Use the below code
// This function replaces unreserved characters in a string with their encoded values.
// Encoding is in the style of SAP Web Dynpro. E.g. "abd*def" becomes "abc~002Adef".
// Reserved/unreserved characters are according to RFC3986 (http://tools.ietf.org/html/rfc3986)
// This function returns a pointer to the start of the encoded string (buf).
// Note that buf must be big enough to hold original string plus all converted entities.
char* dynpro_encode(char* plain_string, char* buf) {
  int len = strlen(plain_string);
  int i,j;
  char hex_value[3];
  if (plain_string == NULL) {
    lr_error_message("Input string is empty.");
    return NULL;
  for (i=0, j=0; i<len; i++) {
    // Check if character is in list of allowed characters.
    // A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
    // a b c d e f g h i j k l m n o p q r s t u v w x y z
    // 0 1 2 3 4 5 6 7 8 9 - _ . ~
    if ( (plain_string<i> >= 'A' && plain_string<i> <= 'Z') ||
         (plain_string<i> >= 'a' && plain_string<i> <= 'z') ||
         (plain_string<i> >= '0' && plain_string<i> <= '9') ||
         (plain_string<i> == '-') ||
         (plain_string<i> == '_') ||
         (plain_string<i> == '.') ||
         (plain_string<i> == '~') ) {
      buf[j++] = plain_string<i>;
    } else if ( (plain_string<i> < 32 ) || (plain_string<i> > 126) ) {
      lr_error_message("Input string contains non-printable or non-ASCII character %c at position: %d", plain_string<i>, i);
      return NULL;
    } else {
      // The unicode value for use in url encoding is the same as the hex value for the ASCII character
      itoa(plain_string<i>, hex_value, 16);
      buf[j++] = '~';
      buf[j++] = '0';
      buf[j++] = '0';
      buf[j++] = toupper(hex_value[0]);
      buf[j++] = toupper(hex_value[1]);
  buf[j] = NULL; // terminate the string
  return buf;
Hope that helps
Thanks