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From Tomoko Uchida <tomoko.uchida.1...@gmail.com>
Subject Question about usage of LuceneTestCase
Date Tue, 21 Aug 2018 13:01:19 GMT
Hello,

Could you give me some advice or comments about usage of LuceneTestCase.

Some of our unit tests extending LuceneTestCase fail by assertion error --
sometimes, randomly.
I suppose we use LuceneTestCase in inappropriate way, but cannot find out
how to fix it.

Here is some information about failed tests.

 * The full test code is here:
https://github.com/DmitryKey/luke/blob/master/src/test/java/org/apache/lucene/luke/models/commits/CommitsImplTest.java
 * We run tests by `mvn test` on Mac PC or Travis CI (oracle jdk8/9/10,
openjdk 8/9/10), assertion errors occur regardless of platform or jdk
version.
 * Stack trace of an assertion error is at the end of this mail.

Any advice are appreciated. Please tell me if more information is needed.

Thanks,
Tomoko


-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running org.apache.lucene.luke.models.commits.CommitsImplTest
NOTE: reproduce with: ant test  -Dtestcase=CommitsImplTest
-Dtests.method=testGetSegmentAttributes -Dtests.seed=35AF58F652536895
-Dtests.slow=true -Dtests.badapples=true -Dtests.locale=de
-Dtests.timezone=Africa/Kigali -Dtests.asserts=true
-Dtests.file.encoding=UTF-8
NOTE: leaving temporary files on disk at:
/private/var/folders/xr/mrs6w1m15y1f4wkgfhn_x1dm0000gp/T/lucene.luke.models.commits.CommitsImplTest_35AF58F652536895-001
NOTE: test params are:
codec=HighCompressionCompressingStoredFields(storedFieldsFormat=CompressingStoredFieldsFormat(compressionMode=HIGH_COMPRESSION,
chunkSize=6, maxDocsPerChunk=7, blockSize=2),
termVectorsFormat=CompressingTermVectorsFormat(compressionMode=HIGH_COMPRESSION,
chunkSize=6, blockSize=2)), sim=RandomSimilarity(queryNorm=true): {},
locale=de, timezone=Africa/Kigali
NOTE: Mac OS X 10.13.6 x86_64/Oracle Corporation 1.8.0_181
(64-bit)/cpus=4,threads=1,free=201929064,total=257425408
NOTE: All tests run in this JVM: [CommitsImplTest]
Tests run: 13, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.44 sec
<<< FAILURE!
testGetSegmentAttributes(org.apache.lucene.luke.models.commits.CommitsImplTest)
Time elapsed: 0.047 sec  <<< FAILURE!
java.lang.AssertionError
at __randomizedtesting.SeedInfo.seed([35AF58F652536895:AE37E8467BC01918]:0)
at org.junit.Assert.fail(Assert.java:92)
at org.junit.Assert.assertTrue(Assert.java:43)
at org.junit.Assert.assertTrue(Assert.java:54)
at
org.apache.lucene.luke.models.commits.CommitsImplTest.testGetSegmentAttributes(CommitsImplTest.java:151)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
at
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:934)
at
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:970)
at
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
at
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
at
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
at
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
at
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
at
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
at
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
at
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
at
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
at
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
at
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
at
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
at
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
at
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
at
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
at
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
at
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
at
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
at
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
at
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
at java.lang.Thread.run(Thread.java:748)

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