@After
    public void afterMock(){
        verify(DiscoveryManager.class);
        verify(DiscoveryClient.class);
    }
Test the case where the property hasn't been used at the global or client level
@throws Exception
ribbon-eureka/src/test/java/com/netflix/niws/loadbalancer/DiscoveryEnabledLoadBalancerSupportsUseIpAddrTest.java