Learning Center - How Would You Parameterise Log-On Credentials?

» Tutorials » Adding Parameters » How Would You Parameterise Log-On Credentials?

• If the data you entered during the recording was a user name and password, how would you parameterise these so that when a random user name was used, the correct password was also used?
   
• Again, create a simple text file but this time, on each line, have the user name separated by a delimiter from the password. If you used the comma delimiter, your file may look like this:
  
      user1,password1
      user2,password2
      user3,password3
      …
      …
   
• It should be obvious that you now need two parameters: one for the user name and one for the password. This once again is easy to configure within StressTester™.
   
• As described in the Parameterise the data you entered section, locate the step containing the user name and convert it to a parameter mapped onto the first column of the text file, with data served in a random order.
  
  Note: if your system only allows one session logged on with each user name at a time, use the Selector type of Random Unique - ensuring that no user name will be used more than once in the performance tests.
   
• You now potentially have a problem: when you use a randomly selected user name, you need to ensure that the password is selected from the same line of the file.
   
• This is where the Related Dynamic Data type is useful. This type allows you to configure StressTester™ to use data on the same randomly selected row of the file; so you can select the password corresponding to the user name.
   
• Highlight the literal password value in the relevant step’s properties, and start the Dynamic Data wizard.
   
• Select the type of “Related”, choose the item to relate to (the parameter you created for the user name), select column 2 (the column holding the password) and complete the wizard.
   
• Your wizard screens will look something like those shown below:
  
  

  

  

• In the screen above, you will see that the sharing and value refresh options are greyed-out. This is because the related parameter will inherit the options set on the parameter to which it relates.
   
• That’s it! When StressTester™ picks a row at random to obtain the user name value, it will pick the password from the same row.

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