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From "Oleg Oleinik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-2918) Contribution of reliability test suite
Date Mon, 19 Mar 2007 14:30:32 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-2918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12482101
] 

Oleg Oleinik commented on HARMONY-2918:
---------------------------------------

I created four new tests covering methods of Thread, ThreadLocal and ThreadGroup:

- api.kernel.thread.ExcptHandlerTest.ExcptHandlerTest covers 
  Thread's UncaughtExceptionHandler and DefaultUncaughtExceptionHandler.

- api.kernel.thread.StackTraceTest.StackTraceTest covers Thread's 
  getStackTrace() and getAllStackTraces().

- api.kernel.thread.ThreadLocalTest.ThreadLocalTest covers ThreadLocal.

- api.kernel.threadgroup.EnumerateTest covers Thread's and 
  ThreadGroup's enumerate().


Test set-up.

1. Unpack src_4_thrd_tests_19_03_07.zip into test suite root 
directory in which there is src/ directory with existing tests). 
This should create new directories and test files.

2. Add these lines to run.api.kernel.xml under <target name="run.api.kernel.thread">:

  <run-pjava-test test="api.kernel.thread.ExcptHandlerTest.ExcptHandlerTest" /> 
  <run-pjava-test test="api.kernel.thread.ThreadLocalTest.ThreadLocalTest" /> 
  <run-pjava-test test="api.kernel.thread.StackTraceTest.StackTraceTest" /> 
  <run-pjava-test test="api.kernel.threadgroup.EnumerateTest" /> 

One can specify test parameters described in the comments in the beginning of 
each test, but, I think, default parameters specified in the tests are sufficient.

3. Compile and run tests as described in README:

cd <TEST SUITE ROOT DIR>
ant
cd run
ant -f run.api.kernel.xml run.api.kernel.thread


Test run results.

i tried the tests on WinXP, HDK: svn = r519348, (Mar 17 2007), 
Windows/ia32/msvc 1310, release build (test execution time - 5 minutes):

* api.kernel.thread.ExcptHandlerTest.ExcptHandlerTest exits 
  abnormally on StackOverflowError. If remove the case causing 
  StackOverflowError, the test abnormally completes on ~110 
  iteration showing that it took all available in system memory.
  Passes on RI.

* api.kernel.thread.StackTraceTest.StackTraceTest failed on 161'st 
  iteration with:

  Exception during test execution: java.util.NoSuchElementException
  java.util.NoSuchElementException
  at java.util.WeakHashMap$HashIterator.next(WeakHashMap.java:162)

  at java.util.AbstractCollection.toArray(AbstractCollection.java)

  at java.lang.ThreadGroup.copyThreads(ThreadGroup.java)
  at java.lang.ThreadGroup.enumerate(ThreadGroup.java:456)
  at java.lang.ThreadGroup.enumerate(ThreadGroup.java:472)

  at java.lang.ThreadGroup.enumerate(ThreadGroup.java)

  at java.lang.Thread.getAllStackTraces(Thread.java)


  Passes on RI.

* api.kernel.thread.ThreadLocalTest.ThreadLocalTest failed on 
  the 1-st iteration with test failure log message:

  Thread ID=3775 checked value of thread ID=943's _instance_ 
  ThreadLocal variable: get() returned wrong object   
  null instead of org.apache.harmony.test.reliability.
  api.kernel.thread.ThreadLocalTest.SomeObject@20585688

  that signals that ThreadLocal's get sometimes return null 
  instead of previously set object.

  Fails on RI with similar message. I failed to find a mistake 
  in the test...

* api.kernel.threadgroup.EnumerateTest hangs on ~150 iteration, 
  but, runs OK if the test operates only with non-daemon Threads 
  and ThreadGroups.

  Passes on RI.


> Contribution of reliability test suite
> --------------------------------------
>
>                 Key: HARMONY-2918
>                 URL: https://issues.apache.org/jira/browse/HARMONY-2918
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Contributions
>            Reporter: Oleg Oleinik
>         Assigned To: Geir Magnusson Jr
>            Priority: Minor
>         Attachments: DekkerTest.java, DekkerTest.java, reliability_test_suite.zip, src_4_thrd_tests_19_03_07.zip
>
>
> Reliability test suite consisting of 72 reliability tests. Covers mainly kernel, nio,
io, net, text, zip classes functionality.

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