[jira] [Created] (NIFI-10862) Tests in TestXMLReader use non-deterministic HashMap

["Sopan Phaltankar (Jira)" <ji...@apache.org>]

Sopan Phaltankar created NIFI-10862:
---------------------------------------

             Summary: Tests in TestXMLReader use non-deterministic HashMap 
                 Key: NIFI-10862
                 URL: https://issues.apache.org/jira/browse/NIFI-10862
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
         Environment: Apache Maven 3.6.0;
openjdk version "1.8.0_342";
OpenJDK Runtime Environment (build 1.8.0_342-8u342-b07-0ubuntu1~20.04-b07);
OpenJDK 64-Bit Server VM (build 25.342-b07, mixed mode);
            Reporter: Sopan Phaltankar
            Assignee: Sopan Phaltankar
             Fix For: 1.19.0


{code:java}
1. org.apache.nifi.hbase.TestScanHBase#testScanToContentWithStringValues
2. org.apache.nifi.hbase.TestScanHBase#testScanToContentWithQualifierAndValueJSON{code}
This is a flaky test, it can pass mvn test while but when run using the tool [NonDex|https://github.com/TestingResearchIllinois/NonDex], it fails. NonDex is a tool that will introduce non-determinism in certain java collections.

The test shows below:
{code:java}
1. org.apache.nifi.hbase.TestScanHBase.testScanToContentWithStringValues  
Time elapsed: 0.267 s  <<< FAILURE!
org.opentest4j.AssertionFailedError: 
expected: <[{"row":"row1", "cells": [{"fam":"nifi","qual":"cq1","val":"val1","ts":123456789}, {"fam":"nifi","qual":"cq2","val":"val2","ts":123456789}]},
{"row":"row2", "cells": [{"fam":"nifi","qual":"cq1","val":"val1","ts":123456789}, {"fam":"nifi","qual":"cq2","val":"val2","ts":123456789}]}]> but was: <[{"row":"row1", "cells": [{"fam":"nifi","qual":"cq2","val":"val2","ts":123456789}, {"fam":"nifi","qual":"cq1","val":"val1","ts":123456789}]},
{"row":"row2", "cells": [{"fam":"nifi","qual":"cq1","val":"val1","ts":123456789}, {"fam":"nifi","qual":"cq2","val":"val2","ts":123456789}]}]>

2. org.apache.nifi.hbase.TestScanHBase#testScanToContentWithQualifierAndValueJSON
Time elapsed: 0.019 s  <<< FAILURE!
org.opentest4j.AssertionFailedError: expected: <[{"cq1":"val1", "cq2":"val2"}]> but was: <[{"cq2":"val2", "cq1":"val1"}]>{code}
*Steps to reproduce the failure:*
 # Run the following command in nifi:
 # First, build the module:

{noformat}
mvn install -pl nifi-nar-bundles/nifi-hbase-bundle/nifi-hbase-processors -DskipTests -Drat.skip -am{noformat}
 # Then run the test using [NonDex|https://github.com/TestingResearchIllinois/NonDex]

{noformat}
1. mvn -pl nifi-nar-bundles/nifi-hbase-bundle/nifi-hbase-processors edu.illinois:nondex-maven-plugin:1.1.2:nondex -Dtest=org.apache.nifi.hbase.TestScanHBase#testScanToContentWithStringValues

2. mvn -pl nifi-nar-bundles/nifi-hbase-bundle/nifi-hbase-processors edu.illinois:nondex-maven-plugin:1.1.2:nondex -Dtest=org.apache.nifi.hbase.TestScanHBase#testScanToContentWithQualifierAndValueJSON{noformat}
 

The result will be saved under the module folder in .nondex



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