What is correlation in Load Runner?
LoadRunner Scripting. ‘Correlation’ term refers to the handling of dynamic values coming from the server. These dynamic values are the unique values which are generated by the server for security purpose like the session ID, authorization token etc.
How do you do a correlation in a Vugen script?
Steps in VUser Comparison method of Correlation can be split as below:
- Identify Dynamic values that need to be correlated.
- Find Servers response containing the Dynamic value.
- Capture the Dynamic value in a parameter.
- Replace every occurrence of the Dynamic value with the parameter.
- Verify Changes.
How do I record a SAP GUI script in LoadRunner?
Recording scripts with SAP GUI Choose SAP Logon in the Application menu, then choose the location of your application (although it is usually chosen automatically). Click Start Recording to start recording the script. The application starts running. At this stage, select a system to be tested by double-clicking it.
What is Web_reg_save_param in LoadRunner?
LoadRunner Scripting. ‘web_reg_save_param’ is a LoadRunner function which is used to handle the dynamic values coming from the server in the response. The basic concept of the dynamic value has already been covered in the ‘Correlation – Overview’ topic.
How do you use correlation rules in LoadRunner?
To use the autocorrelation feature of LoadRunner, you have to enable ‘Automatically apply correlation rules’ option which is available at: Recording Options -> Correlations -> Configuration -> Scan for correlations applying -> Rule Scan -> Automatically correlate values found.
How do you pass a correlated value in LoadRunner?
If you want to choose any specific value then you can append “_” in the correlation parameter and pass into the subsequent request. denotes the place of the item appeared on the webpage. For example, if you need to pick 2nd value then the correlation parameter will be “c_itemName_2”.
What is SAP performance testing?
You run the schedule, deploying test execution over virtual users that can be hosted on remote hosts. Each virtual user runs an instance of the SAP GUI client. Response time results are provided by the SAP R/3 server and recorded. Verification points are checked and results are recorded. Evaluation of results.
Why does LoadRunner need correlation?
Correlation is done for the dynamic value or the value returned by server for any request. Parameterization differs from correlation in a way that former takes care of user input data whereas later takes care of data returned by server. Manual correlation and automated correlation follow the same steps.
What is the use of correlation in performance testing?
What is Correlation in Performance Testing? Correlation is a process of capturing and storing the dynamic response from the server and passing it in the subsequent requests.
How do you handle dynamic boundaries in correlation?
ACHP9=Val; You can capture the desired value by putting the following correlation function in place, using the /DIG text flag in combination with LB: web_reg_save_param(“DynamicCapture”, “LB/DIG=ACHP#=”, “RB=;”, LAST);
What is correlation in performance testing?
How do you perform a performance test in SAP?
SAP performance testing overview
- Test creation. You create your test by recording a session with the SAP GUI client.
- Test editing. After recording, you can edit the events in each transaction and SAP screen.
- Test validation.
- Workload emulation with schedules.
- Schedule execution.
- Evaluation of results.
How do you make a correlation rule in LoadRunner?
How to add a new rule for automatic correlation in LoadRunner?
- Go to Record -> Recording Options -> Correlations -> Rules.
- Select the type of the application from the given list OR add the application by clicking the ‘New Application’ button.
- Add ‘New Rule’ for the newly added application.
Why do we need correlation in performance testing?
Correlation in performance testing is used to account for dynamic values. Many web applications have dynamic data that changes every time the user runs that web application. Web applications often need to track user’s interactions as they navigate through their website while preserving their state between navigations.
What is SAP performance test?
Informative performance test results rely upon sound test development. Each of the following stages contributes to generating meaningful results when performance testing SAP applications: Test creation. You create your test by recording a session with the SAP GUI client.