I am getting almost random, or at least unexpected, values for a parameter sent
with an HTTP Request sampler. I am trying to pass a page number as a parameter
to a GET request to signify the page of the result set to display on a Web
page. Here is the specific case:
-- HTTP Request HTTPClient sampler with a parameter "PageNum" set to a variable
incremented by 1 using the __intSum function. This is a child of a While
controller. I've tried it with the ${__intSum(${pagenum},1,pagenum)} function
as the parameter value in the HTTP Request, as well as a simple variable such
as ${pagenum} which is incremented in the While controller condition field.
-- The expected first value for the PageNum parameter is 2, whereas the first
time through the While loop, the actual value is 3 or 5 or some seemingly
random value.
-- At first i thought it could be a scoping issue where the PageNum variable
was being updated outside the While controller or an variable initialization
problem, but after more investigation it didn't seem to be the case.
-- Finally, I set the parameter value to a fixed value of 2 (for example) ...
AND EVEN SO, the first time through the While loop the parameter is passed with
the GET request as some random number (i.e., not "2"). The second time through
the while loop, it does get set to the correct value of "2".
Any thoughts? Thanks!
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