Using scriptable parameter values in a web test

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This post will show you how to imbed code into a property value. There are 2 built in macro’s that you can set as the value for a property. They are RandomInt and RandomDouble. These will execute System.Random.Next or System.Random.NextDouble. Here is more info on that class: https://msdn.microsoft.com/en-us/library/system.random_methods.aspx

To use these macros you would do the following:

1) Open a web test

2) Go to a query or form post parameter

3) Set the value of the parameter to either {{$RandomInt(0,10}} or {{$RandomDouble(0,10)}}

4) Execute the test

5) Then in the result, look for the parameter and verify that the value has been set according to your parameters.

 

A very useful macro plugin has been written and shared on codeplex. Here is a link to the codeplex site: https://www.codeplex.com/UKVSTS/Wiki/View.aspx?title=UKVSTS%20Web%20Test%20Plug%20In&referringTitle=Home

 

This is a very cool plugin allows you to put almost any code block right in the property value. For example, here are some samples from the codeplex site:

  1. <% = DateTime.Now %> - for the current date and time
  2. <% = DateTime.Now.ToString ("dd-MM-yyyy") %> - for the current date and time in the specified format
  3. <% = Guid.NewGuid() %> - for a new GUID