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File operations in loadrunner with examples

In this post I will explain how to capture a value from server response and save to a text file using vugen.

How to capture and save to text file using loadrunner:

First I have recorded the script using bing.com and then i searched for IBM. We will get 10 results. I have captured all the 10 values and saved to a file.

Here is the code for that.


    long fp;---Here I have declared fp to store the buffer that captured.
    int i;
    char *SearchValue;
    char ch[1000];

    web_url("www.bing.com",
        "URL=http://www.bing.com/",
        "Resource=0",
        "RecContentType=text/html", ----------
        "Referer=",
        "Snapshot=t1.inf",
        "Mode=HTML",
        LAST);

    web_reg_save_param_ex(
        "ParamName=c_search",
        "LB/IC=< h2 >=\"",
        "RB/IC=\"",
        "Ordinal=all",
        SEARCH_FILTERS,
        "Scope=body",
        LAST);

    web_url("search",
        "URL=http://www.bing.com/search?q=ibm&qs=n&form=QBLH&filt=all&pq=ibm&sc=8-3&sp=-1&sk=&cvid=7edfd3e3530644d79148f56dfad4aa0a",
        "Resource=0",
        "RecContentType=text/html",
        "Referer=http://www.bing.com/",
        "Snapshot=t7.inf",
        "Mode=HTML",
        EXTRARES,
        LAST);
  
    fp=fopen("Loadrunnerz.txt","w");
    for(i=1;i<=lr_paramarr_len("c_search");i++)
    {
        SearchValue = lr_paramarr_idx("c_search", i);
        fputs(SearchValue,fp);
        fputs("\n",fp);
    }
fclose(fp);

Hope, most of the code is self explanatory. If you have any doubts feel free to leave a comment.

Comments

  1. i am very new to performance testing..can u please explain each and every line of the above written code.thanks

    ReplyDelete
    Replies
    1. Hi,

      I suggest you to learn c language and loadrunner and web functions which will help you a lot in understanding the code.

      Delete
    2. hi sam thanks for your suggestion.yes i do know some basics of c but as you are asking me to learn web functions can i know where can we find these functions as an api so that i can go through.

      Delete
    3. Download and Install the loadrunner http://loadrunnerz.blogspot.com/2013/11/how-to-download-and-install-hp_16.html
      and in the help section you will find all the function reference.
      go through following functions
      Loadrunner Functions - which will start with lr_ - http://loadrunnerz.blogspot.com/2013/07/lr-functions-in-loadrunner-with-examples_9058.html
      Web Functions - which will start with web_ -http://loadrunnerz.blogspot.com/2013/07/web-functions-in-loadrunner_1404.html

      Delete
    4. Thanks a lot sam.now i am going through.

      Delete
  2. Just what I needed Sam, thank you!

    ReplyDelete
  3. Hi Sam,
    Thanks a lot, this helped. I have an additional question on this: how do you combine the iterations results in a file? For ex: I am trying to run two users (i.e. two iterations in VuGen) but I can only see last user's correlated values. How do we not overwrite values in a file? I want to have both users' data in a file if I run 2 iterations.
    Thank you.

    ReplyDelete
  4. Your comment on line:
    long fp;---Here I have declared fp to store the buffer that captured.

    fp is not for storing the buffer that captured. It is declared as a file pointer, which is used to "walk" the file.

    ReplyDelete
  5. Why was the below declaration done ?

    char ch[1000];

    ReplyDelete
  6. Why was the below declaration done?
    char ch[1000]; ??

    ReplyDelete

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