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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2013/03/05 12:49:13 UTC

[jira] [Created] (HADOOP-9361) Write a set of tests to more strictly define the expected behavior of filesystems

Steve Loughran created HADOOP-9361:
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             Summary: Write a set of tests to more strictly define the expected behavior of filesystems
                 Key: HADOOP-9361
                 URL: https://issues.apache.org/jira/browse/HADOOP-9361
             Project: Hadoop Common
          Issue Type: Improvement
          Components: fs, test
    Affects Versions: 3.0.0
            Reporter: Steve Loughran


{{FileSystem}} and {{FileContract}} aren't tested rigorously enough -while HDFS gets tested downstream, other filesystems, such as blobstore bindings, don't.

The only tests that are common are those of {{FileSystemContractTestBase}}, which HADOOP-9258 shows is incomplete.

I propose 
# writing more tests which clarify expected behavior
# testing operations in the interface being in their own JUnit4 test classes, instead of one big test suite. 
# Having each FS declare via a properties file what behaviors they offer, such as atomic-rename, atomic-delete, umask, immediate-consistency -test methods can downgrade to skipped test cases if a feature is missing.

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