Thursday 10 November 2011

Understanding Snapshot Attribute in LoadRunner

A snapshot is a graphical representation of the current step and it is an Attribute to functions like Web_URL, web_custom_request etc in LoadRunner

A Sample request is shown below

web_custom_request("Sample_Request",
"URL=http://… /Service",
"Method=POST",
"Resource=0",
"RecContentType=text/xml",
"Mode=HTML",
"Snapshot=t1.inf", //Snapshot attribute is commented
"EncType=text/xml; charset=utf-8",
"Body="
LAST);

When working in Tree view, VuGen displays the snapshot of the selected step in the right pane (as Shown Below). The snapshot shows the client window after the step was executed.(Refer Snapshot)

LoadRunner Snapshot

VuGen captures a base snapshot during recording and another one during replay. You compare the Record and Replay snapshots to determine the dynamic values that need to be correlated in order to run the script.

If Snapshot Attribute is not placed in the request, then Image file will not be generated during the replay(Refer Snapshot).

web_custom_request("Sample_Request",
"URL=http://… /Service",
"Method=POST",
"Resource=0",
"RecContentType=text/xml",
"Mode=HTML",
"EncType=text/xml; charset=utf-8",
"Body="
LAST);

LoadRunner Snapshot

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