Apache jMeter : Perform load test and delay verification

Question

I would like to perform a load test on a SOAP webservice.

There are two requests :

1. createDocument. Input: name, size, date. Output: id's document newly created
2. getDocument. Input: document id. Output: id, name, size, date

I would like to perform a load test on the createDocument method. Not rocket science, I use the SOAP sampler, very simple.

But in a second step, after the load test (for performance reason) I would to check if the document are really created by calling getDocument with the id.

My idea :

• Create a Thread Group for the SOAP sampler
• On the Thread Group, add a postprocessor Beanshell
• in the postprocessor, store the document id in a Java list
• Create an other Thread Group for the verification
• In the Test Plan, check "Run Thread Groups consecutively"
• In the verification Thread find a way to loop the Java list
• For each id, perform a SOAP call

I don't know how to loop over a Java list and call a SOAP sampler for each iteration. Any idea ?

Or generally, do you have a solution more jMeter compliant ?

Thank you

Answer 1

In the second thread group:

1. Add a Beanshell Sampler which will iterate through the list with document IDs and store them into JMeter Variables, something like:

   List IDs = bsh.shared.IDs;
   
   int counter = 1;
   
   for (String ID : IDs){
       vars.put("ID_" + counter,ID);
       counter++;  
   }
   

This will result in variables like:

ID_1=somedocumentid
ID_2=someotherdocumentid
....
etc.

2. Add a ForEach Controller and configure it as follows:

   • Input Variable Prefix: ID
   • Output Variable Name: anything meaningful, i.e. CURRENT_ID
   • Make sure that "Add "_" before number" is checked

ForEach Controller will iterate through all defined variables with ID_ prefix and you will be able to refer the current value as ${CURRENT_ID}

Reference material:

• Sharing Variables chapter of JMeter's User Manual Best Practices
• How to use BeanShell: JMeter's favorite built-in component guide
• ForEach Controller documentation entry