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https://issues.apache.org/jira/browse/HADOOP-9227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-9227.
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Resolution: Fixed
Fix Version/s: 3.0.0
Assignee: Steve Loughran
Release Note: fixed in HADOOP-9258
> FileSystemContractBaseTest doesn't test filesystem's mkdir/isDirectory()
> logic rigorously enough
> ------------------------------------------------------------------------------------------------
>
> Key: HADOOP-9227
> URL: https://issues.apache.org/jira/browse/HADOOP-9227
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Trivial
> Fix For: 3.0.0
>
>
> The {{FileSystemContractBaseTest.mkdirs()}} asserts that a newly created
> directory is true, but way of {{FileStatus.isFile()}}, but doesn't assert
> that the directory is a dir by way of {{FileStatus.isDir()}}.
> The assertion used is slightly weaker, as the {{isFile()}} test is actually
> {{!isdir && !isSymlink()}}. if an implementation of {{FileSystem.mkdirs()}}
> created symlinks then the test would still pass.
> There is one test that looks at the {{isDirectory()}} logic,
> {{testMkdirsWithUmask()}} -but as that test is skipped for the s3
> filesystems, it is possible for those filesystems (or similar) to not have
> their directory creation logic stressed enough.
> The fix would be a trivial single line.
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