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Posted to dev@qpid.apache.org by "Keith Wall (JIRA)" <ji...@apache.org> on 2011/09/22 17:20:26 UTC
[jira] [Updated] (QPID-3501) LogMonitor can corrupt test logs files
and cause tests subclassing AbstractLoggingTests to fail.
[ https://issues.apache.org/jira/browse/QPID-3501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Keith Wall updated QPID-3501:
-----------------------------
Status: Ready To Review (was: In Progress)
> LogMonitor can corrupt test logs files and cause tests subclassing AbstractLoggingTests to fail.
> ------------------------------------------------------------------------------------------------
>
> Key: QPID-3501
> URL: https://issues.apache.org/jira/browse/QPID-3501
> Project: Qpid
> Issue Type: Bug
> Components: Java Tests
> Reporter: Keith Wall
> Assignee: Keith Wall
> Fix For: 0.13
>
>
> On an old slow CI box, occasionally we see test failures from those tests subclassing AbstractLoggingTests (ChannelLoggingTests, ExchangeLoggingTest etc).
> For example: org.apache.qpid.server.logging.ExchangeLoggingTest fails on the 0-9-1 test profile with exception:
> {code}
> TestName: testDiscardedMessage Duration: 11.167
> Incorrect message expected:<...3> but was:<...1>
>
> junit.framework.ComparisonFailure: Incorrect message expected:<...3> but was:<...1>
> at org.apache.qpid.server.logging.AbstractTestLogging.validateMessageID(AbstractTestLogging.java:119)
> at org.apache.qpid.server.logging.ExchangeLoggingTest.testDiscardedMessage(ExchangeLoggingTest.java:249)
> at org.apache.qpid.test.utils.QpidBrokerTestCase.runBare(QpidBrokerTestCase.java:238)
> at org.apache.qpid.test.utils.QpidTestCase.run(QpidTestCase.java:131)
> {code}
> Analysis shows that the tests' assertions are failing because the test standard out file is corrupt. When the test fails, the .out file contains a long sequence of ASCII NULs and parts of the log are duplicated. It is the duplication that causes the assertion failure, as the log files contain incorrect numbers of operation log messages (EXH- in this case).
>
> {code}
> od -a TEST-org.apache.qpid.server.logging.ExchangeLoggingTest.testDiscardedMessage.out | head
> 0000000 nul nul nul nul nul nul nul nul nul nul nul nul nul nul nul nul
> *
> 0164000 nul nul nul nul nul nul nul nul nul nul nul nul m a i n
> 0164020 sp 2 0 1 1 - 0 9 - 2 1 sp 2 1 : 1
> {code}
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