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Posted to issues@lucene.apache.org by "Dawid Weiss (Jira)" <ji...@apache.org> on 2020/08/20 15:14:00 UTC
[jira] [Resolved] (LUCENE-9472) True concurrent test suite
duplication and execution (beasting)
[ https://issues.apache.org/jira/browse/LUCENE-9472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dawid Weiss resolved LUCENE-9472.
---------------------------------
Resolution: Workaround
> True concurrent test suite duplication and execution (beasting)
> ---------------------------------------------------------------
>
> Key: LUCENE-9472
> URL: https://issues.apache.org/jira/browse/LUCENE-9472
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Dawid Weiss
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> I toyed with this a bit because it's hacker's delight... Forked the default Gradle test task and made it emit the same test/ suite name multiple times. This results in the same test being executed multiple times:
> {code}
> # ./gradlew -p lucene\analysis\kuromoji testy --tests TestToStringUtil.testHepburn -Ptests.dups=10
> > Task :randomizationInfo
> Running tests with randomization seed: tests.seed=88C21B0E8ABB2D46
> > Task :lucene:analysis:kuromoji:testy
> :lucene:analysis:kuromoji:testy (SUCCESS): 10 test(s)
> BUILD SUCCESSFUL in 13s
> 21 actionable tasks: 6 executed, 15 up-to-date
> {code}
> Upsides:
> * Everything configures itself because the custom task is a subtype of Gradle's Test task,
> * Tests are run in parallel, on multiple VMs,
> * Opens up the possibility of reordering test suites (for load-balancing).
> Downsides:
> * Requires a custom(ized) clone of Gradle's internal classes. Will require maintenance when upgrading gradle. There is no certainty it'll work.
> * Some things visibly don't like duplicated suite names - the progress bar shows the suite once, even though it is executed concurrently in multiple VMs,
> * XML reports will drive jenkins and other tooling crazy:
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <testsuite name="org.apache.lucene.analysis.ja.util.TestToStringUtil" tests="10" skipped="0" failures="0" errors="0" timestamp="2020-08-20T12:54:27" hostname="DWEISS-DESKTOP" time="3.177">
> <properties/>
> <testcase name="testHepburn" classname="org.apache.lucene.analysis.ja.util.TestToStringUtil" time="1.04"/>
> <testcase name="testHepburn" classname="org.apache.lucene.analysis.ja.util.TestToStringUtil" time="1.045"/>
> <testcase name="testHepburn" classname="org.apache.lucene.analysis.ja.util.TestToStringUtil" time="1.043"/>
> <testcase name="testHepburn" classname="org.apache.lucene.analysis.ja.util.TestToStringUtil" time="1.038"/>
> <testcase name="testHepburn" classname="org.apache.lucene.analysis.ja.util.TestToStringUtil" time="1.008"/>
> <testcase name="testHepburn" classname="org.apache.lucene.analysis.ja.util.TestToStringUtil" time="1.005"/>
> ....
> {code}
> * not sure what happens with sysouts from such concurrent runs...
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