<H3>Special Instructions</H3> <p>PDQ Supplier actors should run test <strong>XUA_PDQv3_Query</strong> before running this test, to ensure the success case works first.</p> <p.Send your audit messages to the NIST Audit Record Repository.</p> <H3>Description</H3> <p>This test verifies that a X-Service Provider (PDQ_Supplier) will not respond to query requests from a X-Service User (PDQ Consumer) when the assertions indicate that PDQ Supplier should not grant access.</p> <H3>Evaluation</H3> <p>Verify that the PDQ Consumer was unsuccessful receiving responses to its queries because validation of the assertion failed.  The PDQ Consumer has no indication that the query failed because of the validation failure.</p> <p>On the <strong>NIST Audit Record Repository</strong>, verify: </p><ul> <li>An Authentication Failure event was logged by the PDQ Supplier for each assertion validation failure. </li> </ul> 