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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9361) Write a set of tests to more strictly define the expected behavior of filesystems
Date Tue, 05 Mar 2013 11:49:13 GMT
Steve Loughran created HADOOP-9361:
--------------------------------------

             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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