@Before
  public void setUp() {
    Properties configProperties = new Properties();
    configProperties.setProperty(LOCATORS, "");

    DistributedSystem distributedSystem = DistributedSystem.connect(configProperties);
    member = distributedSystem.getDistributedMember();
    internalDistributedSystem = (InternalDistributedSystem) distributedSystem;
    alertingService = spy(internalDistributedSystem.getAlertingService());
  }
Integration tests for adding and removing {@code Alert} listeners.
geode-log4j/src/integrationTest/java/org/apache/geode/alerting/log4j/internal/impl/AlertListenerRegistrationIntegrationTest.java