@Override
    public void addConfigChangeListener(
        org.apache.helix.api.listeners.ScopedConfigChangeListener scopedConfigChangeListener,
        HelixConfigScope.ConfigScopeProperty configScopeProperty) throws Exception {

    }
A mock implementation of the {@link HelixManager} for exclusive use for testing the {@link HelixParticipant}
ambry-clustermap/src/test/java/com/github/ambry/clustermap/MockHelixManagerFactory.java