@Override
    public boolean isReachable(final String name) {
        final FaultItem faultItem = this.faultItemTable.get(name);
        if (faultItem != null) {
            return faultItem.isReachable();
        }
        return true;
    }
@Test
    public void testIsReachable() throws Exception {
        latencyFaultTolerance.updateFaultItem(brokerName, 1000, 3000, true);
        assertThat(latencyFaultTolerance.isReachable(brokerName)).isEqualTo(true);

        latencyFaultTolerance.updateFaultItem(anotherBrokerName, 1001, 3000, false);
        assertThat(latencyFaultTolerance.isReachable(anotherBrokerName)).isEqualTo(false);
    }