MockBackupRegistry backupRegistry = (MockBackupRegistry) injector.getInstance(BackupRegistry.class);
Applications apps = new Applications();
String dummyappName = "dummyapp";
Application dummyapp = new Application(dummyappName);
apps.addApplication(dummyapp);
dummyapp.addInstance(InstanceInfo.Builder.newBuilder().setHostName("host").setAppName(dummyappName).build());
backupRegistry.setLocalRegionApps(apps);
DiscoveryClient client = injector.getInstance(DiscoveryClient.class);
Assert.assertEquals(client, DiscoveryManager.getInstance().getDiscoveryClient());