Performance Testing Tips

How to compare a string in Loadrunner script? -There are various methods to compare a string, in below example we have used "strcmp" to compare two values. We have captured a string in "pComparisonString" parameter and comparing it with ABC. Lets say if you have captured some string using correlation and want to compare if the captured string meets the condition then only pass the transactions else fail the transaction: if (strcmp(lr_eval_string("{pComparisonString}"),"ABC") == 0) { lr_output_message("The parameter value is %s", lr_eval_string("{pComparisonString}")); lr_end_transaction("Transaction_Failed",LR_FAIL); } else { lr_error_message("No parameter value captured."); lr_end_transaction("Transaction_Passed",LR_PASS); } -------------------------------------------------------- strcmp- String comparison function. pComparisonString- String which we have captured for compar...

We spend most of our time by browsing Facebook, watching videos, uploading photos and many other online activities. Have you ever noticed if you are watching a video and all of sudden the website goes down? If you are trying to book an online ticket and on the payment page, the website stops responding? If you are adding the last available item on sale in the shopping cart and the website gets hung? Isn't it stressful? For every growing business, it's very crucial to keep a tap on the performance of their application. If a website takes more than 2 seconds to respond then users tend to move to some other website which can cause a huge business loss.  Let's say you are on a retail website and browsing for some item that takes around 2-3 seconds to respond to each click or loading the page. In most cases, the user will go for some other website. Performance Testing gives an idea about how the system is going to behave on load and can help the business owners to ...

Pacing is the time that will hold/pause the script before it goes to the next iteration. i.e Once the Action iteration is completed the script will wait for the specific time(pacing time) before it starts the next one. It works between two actions. eg, if we record a script there will be three default actions generated by the Load Runner: vuser_init, Action, and vuser_end, the pacing will work after the Action block and hold the script before it goes to repeat it. The default blocks generated by LoadRunner is shown below: Actions marked in Red Think Time: It replicates the real-time user behavior by adding a delay between two actions/transactions.  In one of the interviews, I was asked if we give think time at the end of the script it will also work as Pacing then why HP has given two different parameters for the same purpose. Each of them has a different purpose: Think Time will keep the thread active and LoadRunner will expect for another transaction, however, in pacing t...

The auto correlation rule in VUGen 12 sometime fails to capture the values due to maximum length limit. You can increase the maximum length by: Increase the length of ‘MaxParamLen=4096’ to 99999 in ‘correlationsettings.xml’ file in \\vuGen\config folder. Save the changes and restart the VUGen, the auto correlation rule will capture the data.

We can use the below function to print a value in notepad using append mode, it will keep on adding the data in notepad. This function can be used for data filtration from a parameter file. long fd; char buff[100]; web_reg_save_param("cRequest_id","LB=---","RB=---","ORD=1",Last); //Before closing the Action strcpy( buff,lr_eval_string("{cRequest_id}") ); fd=fopen( "C:\\NotepadName.txt","a" ); fprintf( fd,"%s\n",buff ); fclose( fd ); } In this example we are capturing the cRequest_id from correlation and printing in notepad.

SAP GUI Text check (Error Handling) sapgui_status_bar_get_text("paramStatusBarText",                    BEGIN_OPTIONAL,                              "Recorded status bar text: Material document 4900089763 posted",                              "AdditionalInfo=sapgui1067",                    END_OPTIONAL);           lr_end_transaction("S31_SAP_Fleet_MIGO_1090_ClkPost", LR_AUTO); i = sapgui_status_bar_get_param("1", "param1", LAST); lr_output_message("Material Document Number is: %s",lr_eval_string("{param1}")); if(i==1)            { lr_output_message("Material Document creation failed and input data used is : %s", lr_eval_string("{pUserName}"));       ...

Error handling using if else condition. web_reg_find("Search=All",                      "Text/IC=Home Page",                      "SaveCount=home_count",                       LAST); //then after login block paste this code: if (atoi(lr_eval_string("{home_count}")) > 0)                 {                       lr_output_message("Log on Successful");                 }     else               {                     lr_output_message("Log on failed for the Login ID: %s", lr_eval_string("{pUserName}"));                     lr_exit( LR_E...