JMeter response assertion validation

Question

I have request something similar to the below each using first 3 characters of a name, Ex: WAL.

It results in 3 responses:

<Name>
<firstname>WALLER</firstname>
<firstname>WALTER</firstname>
<firstname>WALMER</firstname>

I have to include response assertion to validate the above 3 names:

Note: this is dynamic. For the above results, it is 3 For some it might fetch 1, 2, 4 etc. Could anyone please tell me how to validate this?

Answer 1

I can see 2 options:

1. You use the same test against the same test data, it means that you will be getting the same responses each time. This is preferred way of designing your test as it needs to be repeatable otherwise even if you detect an issue and cannot reproduce it by running the same test this test doesn't make a lot of sense.
2. If you cannot afford having static data for some reason you can consider doing some preparation in setUp Test phase or directly before the request. For example if the system under test makes a database query in order to return search results you can execute the same query using i.e. JDBC PreProcesor to pre-populate expected data set

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Also your response looks utterly like XML so it might be easier to consider using XPath Assertion instead of the Response Assertion in order to validate the data.