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https://issues.apache.org/jira/browse/HDFS-669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eli Collins updated HDFS-669:
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Description:
Most HDFS tests are functional tests that test a feature end to end by running
a mini cluster. We should add more tests like TestReplication that attempt to
stress individual classes in isolation, ie by stubbing out dependencies without
running a mini cluster. This allows for more fine-grain testing and making
tests run much more quickly because they avoid the cost of cluster setup and
teardown. If it makes sense to use another framework besides junit we should
standardize with MAPREDUCE-1050.
was:Like MAPREDUCE-1050 but for HDFS. If using framework makes sense we
should standardize across Hadoop projects. Using mock objects will allow for
fine grain unit tests (ie write tests for particular class without creating a
MiniDFSCluster by creating mock objects for some/all of the classes
dependencies). I'll work on an example patch for preliminary review.
Summary: Add unit tests (was: Use mock objects for unit tests )
> Add unit tests
> ---------------
>
> Key: HDFS-669
> URL: https://issues.apache.org/jira/browse/HDFS-669
> Project: Hadoop HDFS
> Issue Type: Test
> Components: test
> Reporter: Eli Collins
> Assignee: Eli Collins
>
> Most HDFS tests are functional tests that test a feature end to end by
> running a mini cluster. We should add more tests like TestReplication that
> attempt to stress individual classes in isolation, ie by stubbing out
> dependencies without running a mini cluster. This allows for more fine-grain
> testing and making tests run much more quickly because they avoid the cost of
> cluster setup and teardown. If it makes sense to use another framework
> besides junit we should standardize with MAPREDUCE-1050.
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