jiajunwang commented on a change in pull request #693: Removed useless znodes 
to resolve dependency between test methods in TestZKUtil
URL: https://github.com/apache/helix/pull/693#discussion_r370789642
 
 

 ##########
 File path: helix-core/src/test/java/org/apache/helix/manager/zk/TestZKUtil.java
 ##########
 @@ -63,6 +65,13 @@ public void afterClass() {
     deleteCluster(clusterName);
   }
 
+  @AfterMethod()
+  public void afterMethod() {
+    String path = PropertyPathBuilder.instanceConfig(clusterName);
+    _gZkClient.deleteRecursively(path);
+    _gZkClient.createPersistent(path);
 
 Review comment:
   I checked the test cases one by one, there is no test which is testing to 
create the root path (please correct me if I am wrong). Given so, re-create the 
root path is easier and safer.
   If we really have a case that requires the root path non-exists, feel free 
to change that test.

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