@Test
public void getLBHealthChecksNullAnswer() throws ResourceUnavailableException,
        URISyntaxException {

    setupLBHealthChecksMocks();
    Mockito.when(
            _agentMgr.easySend(Mockito.anyLong(),
                    Mockito.any(Command.class))).thenReturn(null);
    Assert.assertNull(externalLoadBalancerDeviceManager
            .getLBHealthChecks(network, Arrays.asList(rule)));
}