The WS-Security Status assertion checks whether the last request or response you have received contains valid WS-Security headers.
Create an assertion
Follow these steps:
Click the image to enlarge it.
Open a test step.
Click Add assertion.
In the New Assertions dialog, search for the WS-Security Status assertion or select it manually in the Compliance, Status and Standards category.
Other assertions for WS-A
Add other assertions to validate the WS-Addressing headers:
Compliance, Status and Standards Assertions
WS-Addressing Response Assertion
WS-Addressing Request Assertion