@Test
    void verifyCreateSimpleWebApplicationServiceImplFromServiceAttribute() {
        val request = new MockHttpServletRequest();
        request.setAttribute(CasProtocolConstants.PARAMETER_SERVICE, RegisteredServiceTestUtils.CONST_TEST_URL);
        val impl = webApplicationServiceFactory.createService(request);
        assertNotNull(impl);
    }
@author Scott Battaglia
@author Arnaud Lesueur
@since 3.1
core/cas-server-core-services/src/test/java/org/apereo/cas/authentication/principal/SimpleWebApplicationServiceImplTests.java