Unit test failure in TestUserGroupInformation.testGetServerSideGroups
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Key: HADOOP-7290
URL: https://issues.apache.org/jira/browse/HADOOP-7290
Project: Hadoop Common
Issue Type: Bug
Components: test
Affects Versions: 0.23.0
Environment: Linux 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24
UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)
Reporter: Trevor Robinson
Priority: Minor
Testsuite: org.apache.hadoop.security.TestUserGroupInformation
Tests run: 14, Failures: 1, Errors: 0, Time elapsed: 0.278 sec
------------- Standard Output ---------------
trobinson:users guest git
------------- ---------------- ---------------
Testcase: testGetServerSideGroups took 0.051 sec
FAILED
expected:<g[ues]t> but was:<g[i]t>
junit.framework.AssertionFailedError: expected:<g[ues]t> but was:<g[i]t>
at
org.apache.hadoop.security.TestUserGroupInformation.testGetServerSideGroups(TestUserGroupInformation.java:94)
It seems like the test is assuming that the groups returned by
UserGroupInformation.getGroupNames() are in the same order as those returned by
executing `id -Gn`. getGroupNames() only documents that the primary group is
first, and `man id` doesn't document any ordering, so it seems like the test
needs to be reworked to remove that assumption.
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