Trouble with xUnit plug-in on OS X? "The plugin hasn't been performed correctly: remote file operation failed"

[Jonathan Rice]

I can't get even a supposedly simple JUnit test working on my OS X Jenkins system. Can anyone give any advice? I have a test script which just prints the following dummy JUnit XML text to $(WORKSPACE)/dummy_junit.xml:

<?xml version="1.0" encoding="UTF-8"?>
<testsuites tests="3" failures="1" errors="0" time="35" name="AllTests">
  <testsuite name="MathTest" tests="2" failures="1"* errors="0" time="15">
    <testcase name="Addition" status="run" time="7" classname="">
      <failure message="Value of: add(1, 1) Actual: 3 Expected: 2" type=""/>
      <failure message="Value of: add(1, -1) Actual: 1 Expected: 0" type=""/>
    </testcase>
    <testcase name="Subtraction" status="run" time="5" classname="">
    </testcase>
  </testsuite>
  <testsuite name="LogicTest" tests="1" failures="0" errors="0" time="5">
    <testcase name="NonContradiction" status="run" time="5" classname="">
    </testcase>
  </testsuite>
</testsuites>

Running on either a slave or the master, Jenkins finds the XML file fine, but it then fails with "The plugin hasn't been performed correctly: remote file operation failed":

[xUnit] [INFO] - Starting to record.
[xUnit] [INFO] - Processing JUnit
[xUnit] [WARNING] - Can't create the path /tmp/master/workspace/dummy_junit/generatedJUnitFiles. Maybe the directory already exists.
[xUnit] [INFO] - [JUnit] - 1 test report file(s) were found with the pattern 'dummy_junit.xml' relative to '/tmp/master/workspace/dummy_junit' for the testing framework 'JUnit'.
[xUnit] [ERROR] - The plugin hasn't been performed correctly: remote file operation failed: /tmp/master/workspace/dummy_junit at hudson.remoting.Channel@6deb6c9:master
Build step 'Publish xUnit test result report' changed build result to FAILURE
Build step 'Publish xUnit test result report' marked build as failure
Finished: FAILURE

I've found mention of this error in one or two previous discussions, but with no resolution. Is this likely to be something as simple as file permissions or something? Is there any way to get further debugging information out of this?

[Jonathan Rice]

Okay, I have mostly solved this. It seems that the xUnit plug-in did not like the dummy JUnit XML code that I was feeding it. I rejigged my test script to feed one of the example JUnit XML files from http://junitpdfreport.cvs.sourceforge.net/junitpdfreport/src/resources/examples/testresults/  into Jenkins, and it worked. So I'll have to make sure that my own XML conforms to that standard. I had been using the advice on JUnit XML structure from this Google Test page: http://code.google.com/p/googletest/wiki/AdvancedGuide . So either that's not exactly what the xUnit plug-in demands, or I made some mistake in constructing my own XML test file based on it. One trivial issue was that my XML had an accidental leading blank line, and the xUnit plug-in choked on that, with the same cryptic message "The plugin hasn't been performed correctly: remote file operation failed". That's one unforgiving and unhelpful parser!

On Wednesday, October 31, 2012 10:53:10 PM UTC-5, Jonathan Rice wrote:

I can't get even a supposedly simple JUnit test working on my OS X Jenkins system. Can anyone give any advice? I have a test script which just prints the following dummy JUnit XML text to $(WORKSPACE)/dummy_junit.xml:

<?xml version="1.0" encoding="UTF-8"?>
<testsuites tests="3" failures="1" errors="0" time="35" name="AllTests">
  <testsuite name="MathTest" tests="2" failures="1"* errors="0" time="15">
    <testcase name="Addition" status="run" time="7" classname="">
      <failure message="Value of: add(1, 1) Actual: 3 Expected: 2" type=""/>
      <failure message="Value of: add(1, -1) Actual: 1 Expected: 0" type=""/>
    </testcase>
    <testcase name="Subtraction" status="run" time="5" classname="">
    </testcase>
  </testsuite>
  <testsuite name="LogicTest" tests="1" failures="0" errors="0" time="5">
    <testcase name="NonContradiction" status="run" time="5" classname="">
    </testcase>
  </testsuite>
</testsuites>

Running on either a slave or the master, Jenkins finds the XML file fine, but it then fails with "The plugin hasn't been performed correctly: remote file operation failed":

[xUnit] [INFO] - Starting to record.
[xUnit] [INFO] - Processing JUnit
[xUnit] [WARNING] - Can't create the path /tmp/master/workspace/dummy_junit/generatedJUnitFiles. Maybe the directory already exists.
[xUnit] [INFO] - [JUnit] - 1 test report file(s) were found with the pattern 'dummy_junit.xml' relative to '/tmp/master/workspace/dummy_junit' for the testing framework 'JUnit'.
[xUnit] [ERROR] - The plugin hasn't been performed correctly: remote file operation failed: /tmp/master/workspace/dummy_junit at hudson.remoting.Channel@6deb6c9:master
Build step 'Publish xUnit test result report' changed build result to FAILURE
Build step 'Publish xUnit test result report' marked build as failure
Finished: FAILURE

I've found mention of this error in one or two previous discussions, but with no resolution. Is this likely to be something as simple as file permissions or something? Is there any way to get further debugging information out of this?