@Test
    void verifyOperation() {
        val input = new EchoingPrincipalResolver();
        assertNull(input.getAttributeRepository());
        assertTrue(input.supports(CoreAuthenticationTestUtils.getCredentialsWithDifferentUsernameAndPassword()));

    }
This is {@link EchoingPrincipalResolverTests}.

@author Misagh Moayyed
@since 6.3.0
core/cas-server-core-authentication-api/src/test/java/org/apereo/cas/authentication/principal/resolvers/EchoingPrincipalResolverTests.java