Contain assertion - how can I 'blank out' a part of element text which changes with every response

[tester213243]

Hello fellow soap users, 

I am building a regression test. And the easiest way is ofcourse to make one contain-assertion of the complete response. However, there are elements that change everytime I execute. 

For example: 

       <ns1:RandomNumber>234</ns1:RandomNumber>  

Is there I way I can validate if the response contains something like: 
       <ns1:RandomNumber>XXX</ns1:RandomNumber>  

With the XXX that 'blank out' that part of the validation. So it only checks the presence of the positions, and not what it actually says there?

Kind regards

[sonya_m]

Thanks everyone for suggestions. 

@tester213243 any updates?

[nmrao · Accepted solution]

@tester213243 

There is an example in the documentation for the same

https://www.soapui.org/docs/functional-testing/point-and-click-testing/point-and-click-with-xpath.ht...

In your case, use xpath assertion with

XPath expression as

matches(//*:RandomNumber, '\d{3}')

And Exprected Result as

true

NOTE: ignore namespace from the image below and use your name spaces by clicking on declare.