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sguda's avatar
sguda
Regular Contributor
14 years ago

Parameterization in Load Test task.

I have recorded a load test for loggin page with loginid: test1, password: sa.

I have seen the requests , in request 19, i have seen that it is login.aspx request and in the body i saw the parameters i am giving to login.



Now i want to run this load test with 10 users with 3 of the Virtual users using the login id mentioned above , another three Virtual users with loginId: test2, password; test1 and another 3 usres with LoginId: test3, password: test1.



So for each set of 3 Virtual users, i want to run the load test with different login id's and the password will be the same.



How can i acheive this.



I looked at parameterization, it is mentioned that for the POST requests, need to change the parameters in the request body of that particular request.



Or do i have to use regular expressions?



Or scripting is the only option?



How do i make it dynamically to pick up different loginId for every 3 users it is running.



Please let me know.


25 Replies

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  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    Can anybody address this as soon as possible.

     
  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    In my load test i want , out of 10 virtual users,



    i want to execute the test firts 3 VU's with txtUserName: test1, txtUsrPassword : pass01.

    The next 3 VU's with txtUserName: test2, txtUsrPassword: pass02.

    The next 4 VU'S with txtUserName: test3, txtUsrPassword: pass03.



    I hope you understan my scenario.



    Now i has test designed, QA_Login, the task is QAFA_Login.



    Now i wrote the script like this:




    Sub Param_LogInId


     



     



    set TestInstance = LoadTesting.Tests.TestByName(QA_Login)

     




     


    For i = 0 To 5



    Set HTTPTask =



     



    LoadTesting.HTTPTask("QAFA_Login")

     


     




    Set request = HTTPTask.Connection(5).Request(2)


     


    if (i = 0) Or (i = 1) Or (i = 2) Then


       request.BodyVariables.Item("txtUserName") = "aprilg"


       request.BodyVariables.Item("txtUsrPassword") = "aprilg"


    else


       if (i = 3) Or (i = 4) Or (i = 5) Then


           request.BodyVariables.Item("txtUserName") = "gailc"


           request.BodyVariables.Item("txtUsrPassword") = "regina01"


       end If


    end if


    next


     


     



     



    ' Runs the task

     




     



     



    ' call TestInstance.(QAFA_Login)

     




    call TestInstance.Run("QAFA_Login")


     



    End Sub

     



    When i run this it is giving me VB Script run time error in the last call statement and says object required: "TestInstance".



    Please suggest nad let me know if i can do it in any other way.





  • AlexeyKolosov's avatar
    AlexeyKolosov
    Staff
    14 years ago

    Hi Sri,


    I guess the problem is actually caused by the following code line:



    set TestInstance = LoadTesting.Tests.TestByName(QA_Login)


    Let me quote the "Tests.TestByName" ( http://www.automatedqa.com/support/viewarticle.aspx?aid=4567 ) help topic:



    Name [in] Required String


    So, the value passed to the Tests.TestByName method must be a string. If QA_Login is actually the name of the test and not a name of a string variable which stores the name of the test, you need to use the following code line instead:



    set TestInstance = LoadTesting.Tests.TestByName("QA_Login")

  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    Hi, I tried with specifying the test name in quotes.



    My test name is QA_Login and Task name is QAFA_Login.



    Do i have to specify Task name or Test name in the last call statement.



    I am attaching the snap shot of the error i am getting and also the load test suite tree.



    By the script i have written here , does it actually creates all the VU's first with specified User id's and Passwords and then runs the task after creating VU'S.



    How do i know the load test ran with the userid's and passwords i specified in the script parameters.



    Please suggest the solutions for the error i am getting and also please clarify my questions regarding cofirming that it is doing of what i am specifying.
  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago

    Hi,



    I coded the set TestInstance statement like this. Now it went through.



    1. Please let me know what i am doing is right.

    2. How do i know it executed the test with the parameters i specified.

    3. it is simple login script. But it is failing and giving errors in one particular request for all  users 

        In the log it says that 

      

      -620424866 Connection 9 of the task assigned to the virtual user Sri (6) was simulated partially. Only 1 of 3 requests were completed. 6/11/2010 10:02:20 AM 0  Error



    Request for one is this

    POST /CallowayQA_P1/Homepage/Homepage.aspx HTTP/1.1

    Response is



    Request for another one is this;

    GET /CALLOWAYQA_P1/WebResource.axd?d=FBCtxQYQJPsBcPB1nFRyBI-Ee-yTQDHumCZTrzdHUfikxBeaEIGfnqJ_Shmqgg3R101ueqz-LyKekgGf8qi-aw2&t=633989817480000000 HTTP/1.1



    Response is


    These two metioned above are not executed. and is giving error in the result. i have 6 VU's in the test, so it is giving 6 errors.



    Please suggest that if these are sever errors i have to look into.




    Sub Param_LogInId

      set TestInstance = LoadTesting.Tests.TestByName("QA_Login").CreateTestInstance

      For i = 0 To 5

         Set HTTPTask = LoadTesting.HTTPTask("QAFA_Login")

         Set request = HTTPTask.Connection(5).Request(2)

         if (i = 0) Or (i = 1) Or (i = 2) Then

              request.BodyVariables.Item("txtUserName") = "aprilg"r

              request.BodyVariables.Item("txtUsrPassword") = "aprilg"

        else

              if (i = 3) Or (i = 4) Or (i = 5) Then

                  request.BodyVariables.Item("txtUserName") = "gailc"

                  request.BodyVariables.Item("txtUsrPassword") = "regina01"

             end If

         end if

      next

    call TestInstance.Run("QAFA_Login")



    End     Sub



    Thanks in advance.


    TestInstance.Run("QAFA_Login")



    Also when i change the connection or request to some other number it is not failing which i thought it would b'se it can't find those parameters in other connections and requests.


    TestInstance.Run("QAFA_Login") Also when i change the connection or request to some other number it is not failing which i thought it would b'se it can't find those parameters in other connections and requests.

     



    TestInstance.Run("QAFA_Login") Also when i change the connection or request to some other number it is not failing which i thought it would b'se it can't find those parameters in other connections and requests.

     



    TestInstance.Run("QAFA_Login") Also when i change the connection or request to some other number it is not failing which i thought it would b'se it can't find those parameters in other connections and requests.

    So i doubt and please let me know if i am doing right.

  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    Can  any one give solution for this please.
  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    Can you address this as soon as possible. I doubt hat by this code if sets the parameters of virtual users to different login id's and password before it executes the LOAD test.
  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    Can anybody help me with this as soon as possible.
  • AlexanderM's avatar
    AlexanderM
    Staff
    14 years ago

    Hi Sri,







    Do i have to specify Task name or Test name in the last call statement.



    I guess, you mean the "call TestInstance.Run("QAFA_Login")" line. Let me quote the TestInstance.Run help topic:



    The method has the following parameter:

      Title

        Specifies the name of the result group to which TestComplete will add summary results of the test run.







    So, it can be any string value you like. You can read about result groups in the Load Testing Analysis Page help topic.







    I am attaching the snap shot of the error i am getting and also the load test suite tree.



    The runtime error you get is caused by the fact that the TestByName method returns the Test object, not the TestInstance object. The Test object does not have the Run method.







     does it actually creates all the VU's first with specified User id's and Passwords and then runs the task after creating VU'S.



    No, your script does not do what you think it does. The script gets the "QA_Login" test, but it does not modify the test - it creates a runtime copy of the "QAFA_Login" task six times, changes the created task copy, but does not assign it to a user.

    To accomplish your task, you can create your test from script without using the visual load test representation:







    Sub Param_LogInId

      Dim TestInstance, HTTPTask, request, VU

       

      Set TestInstance = LoadTesting.CreateTestInstance("MyTestLogin")

      

      For i = 0 To 5

        Set HTTPTask = LoadTesting.HTTPTask("QAFA_Login")

        Set request = HTTPTask.Connection(5).Request(2)

        if (i = 0) Or (i = 1) Or (i = 2) Then

          request.BodyVariables.Item("txtUserName") = "aprilg"

          request.BodyVariables.Item("txtUsrPassword") = "aprilg"

        else

          if (i = 3) Or (i = 4) Or (i = 5) Then

            request.BodyVariables.Item("txtUserName") = "gailc"

            request.BodyVariables.Item("txtUsrPassword") = "regina01"

          end If

        end if

        

        ' Now create a virtual user and add it to the test instance

        Set VU = LoadTesting.CreateVirtualUser("VU_" & i)

        Set VU.Task = HTTPTask

        Set VU.TestInstance = TestInstance  

      next





      ' Runs the task

      call TestInstance.Run("MyResultGroup")

    End Sub









    How do i know the load test ran with the userid's and passwords i specified in the script parameters.



    In the load testing log, you can see only the headers of the requests that were sent to the server. If you need to see the actual request body sent to the server, you will need to handle the OnLoadTestingRequest event for the needed requests and post the actual body contents to the Test Log.
  • sguda's avatar
    sguda
    Regular Contributor
    14 years ago
    Hi,



    But i have created the load test " QA_Login" visually with Num of virtual user's , ramp up scenario, with run concurrently options checked and browser emulation, speed etc. . So i want to use it instead of creating new test instance and creating new vu's.



    Can you please tell me how can i use it.



    Also please specify how can i use onloadtestingrequest to get the request body and post it to log. I read it and quiet didn't understand.