### Question:
HaDescriptorFactory implements HaServiceConfigConstants { public static HaDescriptor createDescriptor() { return new DefaultHaDescriptor(); }  static HaDescriptor createDescriptor(); static HaServiceConfig createServiceConfig(String serviceName, String config); static HaServiceConfig createServiceConfig(String serviceName, String enabledValue,
                                                     String maxFailoverAttemptsValue, String failoverSleepValue,
                                                     String zookeeperEnsemble, String zookeeperNamespace);  }### Answer:
@Test public void testCreateDescriptor() { assertNotNull(HaDescriptorFactory.createDescriptor()); }