String methodName = TestHelper.getTestMethodName();
String testName = className + "_" + methodName;
final ZkClient client =
new ZkClient(ZK_ADDR, ZkClient.DEFAULT_SESSION_TIMEOUT,
ZkClient.DEFAULT_CONNECTION_TIMEOUT, new ZNRecordSerializer());
// make sure "/testName/test" doesn't exist
final String path = "/" + testName + "/test";
client.createPersistent(path, true);
ZkListener listener = new ZkListener();