listener._instanceConfigChanged = false;
accessor.setProperty(keyBuilder.instanceConfig(instanceName), value);
Thread.sleep(1000); // wait zk callback
Assert.assertTrue(listener._instanceConfigChanged, "Should get instanceConfig callback invoked since we change instanceConfig");
value = accessor.getProperty(keyBuilder.clusterConfig());
value._record.setSimpleField("" + System.currentTimeMillis(), "newValue");
listener._configChanged = false;
accessor.setProperty(keyBuilder.clusterConfig(), value);
Thread.sleep(1000); // wait zk callback
Assert.assertTrue(listener._configChanged, "Should get clusterConfig callback invoked since we change clusterConfig");