org.testng.TestNGException: while trying to execute the tests

Question

I have been working on a project using Android Studio since long. Today refactored some code and it started to break,so reverted the changes. Even after reverting the changes whenever I try to debug the code, I am ending up with following an exception :

org.testng.TestNGException: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 44; Attribute "parallel" with value "none" must have a value from the list "false methods tests classes instances ".
    at org.testng.TestNG.initializeSuitesAndJarFile(TestNG.java:325)
    at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:90)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:206)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:177)
    at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:125)
Caused by: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 44; Attribute "parallel" with value "none" must have a value from the list "false methods tests classes instances ".
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:396)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:284)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.validateDTDattribute(XMLDTDValidator.java:1392)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.addDTDDefaultAttrsAndValidate(XMLDTDValidator.java:1311)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(XMLDTDValidator.java:1917)
    at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:742)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:380)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:614)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3135)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:880)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:118)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:327)
    at javax.xml.parsers.SAXParser.parse(SAXParser.java:195)
    at org.testng.xml.XMLParser.parse(XMLParser.java:39)
    at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:16)
    at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:9)
    at org.testng.xml.Parser.parse(Parser.java:172)
    at org.testng.TestNG.initializeSuitesAndJarFile(TestNG.java:305)
    ... 4 more

trying to open the project using intelliJ I can get this gone. Any clues on this??

Do you use a testng.xml? I suppose you are using testng 6.9.10 which check validity of the file. — juherr, Dec 23 '15 at 11:03
Could you share it? But the problem is parallel param. Replace none by false. — juherr, Dec 23 '15 at 11:06
I am not sure though, is this what you are looking for? ` ` @juherr — Naman, Dec 23 '15 at 11:14
Ok, your file seems good. Do you have the problem when you run the suite via this file or when you run a test from IntelliJ itself (it generate a testng.xml itself in this case)? — juherr, Dec 23 '15 at 11:41
I am trying to execute it using intelliJ. would try using the xml as well and update. — Naman, Dec 23 '15 at 11:46
You can try to override the parallel attribute with false value. I think it is a IntelliJ issue. Maybe you can create an issue on https://youtrack.jetbrains.com/issues and then provide the ticket number here? It will allow me to follow it. — juherr, Dec 23 '15 at 11:53
@juherr https://youtrack.jetbrains.com/issue/IDEA-149750 raised here..you can check. — Naman, Dec 23 '15 at 12:17
Do you know yet what is setting `parallel` to `none`? To my knowledge, IntelliJ IDEA does not set this so it must be getting set somewhere else. How do you run your test? — mfulton26, Dec 23 '15 at 13:14
@mfulton26 I am running it using debug option from my class where the methods are annotated as Test — Naman, Dec 23 '15 at 13:17
@nullpointer Have you changed the run configuration to pass in `parallel`? You might take a look there and if you don't see anything you could try deleting the run/debug configuration and then running again to create a fresh one. — mfulton26, Dec 23 '15 at 13:19
I would try doing that as well. Though i didn't change that anytime. — Naman, Dec 23 '15 at 13:23
Actually, it looks like IntelliJ does set parallel after all. See http://stackoverflow.com/a/29659644/3255152. — mfulton26, Dec 23 '15 at 13:25
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/98830/discussion-between-mfulton26-and-nullpointer). — mfulton26, Dec 23 '15 at 15:32
@mfulton26 you got it! Your link says "IntelliJ actually creates an XML file and then uses that when running TestNG. That XML file has parallel="none" inside of it." what is not expected by the testng dtd — juherr, Dec 23 '15 at 20:38
Please downgrade your TestNG version, for me it is working with 6.8.8 version. — sanjay singh, Jul 03 '19 at 06:29

score 3 · Accepted Answer · answered Dec 27 '15 at 16:40

3

Discussion and help from @juherr suggests that solution to this is :

Attribute "parallel" with value "none" must have a value from the list "false methods tests classes instances ".

TestNG 6.9.10 is now validating the xml file against the DTD The problem is that the default testng.xml template from IntelliJ is setting "parallel" on suite to "none". Here is the link to the bug for the same.

answered Dec 27 '15 at 16:40

Naman

27,789
26
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in fact it seems it is not really the problem. Coud you help us to reproduce the problem (have a look on the bug you opened)? – juherr Dec 29 '15 at 13:14
I did had a look..would need some time to reproduce the same..since would have to use the 6.9.10 for it..,meaning my tests wouldn't run actually in that case. – Naman Dec 29 '15 at 17:27
1

Exactly. This was my problem. I've downgraded the TestNG version to 6.9.9 and it's working well. – Guillermo Ceballos Mar 03 '16 at 09:08
1

i still prefer `6.9.9` over `6.9.10` @GuillermoCeballos :) – Naman Mar 03 '16 at 09:37
Guys, anyone knows if this issue was fixed? Any information will be great. – Eyal Sooliman Mar 09 '16 at 06:34
@EyalSooliman : you can track this https://youtrack.jetbrains.com/oauth?state=%2Fissue%2FIDEA-149750 – Naman Mar 09 '16 at 06:38
Thank you. Really helps, I will try to workaround this issue. – Eyal Sooliman Mar 09 '16 at 07:15

score 2 · Answer 2 · answered Mar 17 '16 at 20:29

2

update the testng.xml to

<suite name="Suite" parallel="false">

from

<suite name="Suite" parallel="none">

answered Mar 17 '16 at 20:29

Nabeel A.Rahman

181
3
14

score 0 · Answer 3 · answered Feb 15 '17 at 16:31

0

If you have no editable testng.xml file, you can downgrade your testng dependency to 6.9.9.

answered Feb 15 '17 at 16:31

Matthias M

12,906
17
87
116

score 0 · Answer 4 · edited Jul 03 '19 at 06:37

If you are using/implementing any listener in your class/project then add the annotation @Listeners on that class like below:

@Listeners(value=SuiteListener.class)

e.g.

@Listeners(value=ClassName who implemets listener.class)

e.g.

@Listeners(value=SuiteListener.class)
public class SuiteListener implements ISuiteListener
{
    lines of code / methods in class
}

Add below is a code snippet in testng.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="Suite">
<listeners>
<listener class-name="report.SuiteListener"></listener>
</listeners>

  <test thread-count="5" name="Test">
    <classes>
      <class name="tests.Test1"/>
      <class name="tests.Test2"/>
    </classes>
  </test> <!-- Test -->

</suite> <!-- Suite -->

score -1 · Answer 5 · edited Dec 27 '18 at 04:57

-1

Faced same problem and same exception. Worked for me by removing

{parallel="none"}

or giving value

{parallel="false"}

in the testng.xml file. Afterward runs fine.

edited Dec 27 '18 at 04:57

Naman

27,789
26
218
353

answered Jan 09 '16 at 17:16

kartikeya mishra

1
1

org.testng.TestNGException: while trying to execute the tests

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