@Test
    void verifyUnauthzView() {
        val mv = OAuth20Utils.produceUnauthorizedErrorView();
        assertEquals(HttpStatus.UNAUTHORIZED, mv.getStatus());
    }
This is {@link OAuth20UtilsTests}.

@author Misagh Moayyed
@since 6.1.0
support/cas-server-support-oauth/src/test/java/org/apereo/cas/support/oauth/util/OAuth20UtilsTests.java