Add tests that try starting the various hadoop command line scripts
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Key: HADOOP-4059
URL: https://issues.apache.org/jira/browse/HADOOP-4059
Project: Hadoop Core
Issue Type: Test
Components: test
Affects Versions: 0.19.0
Reporter: Steve Loughran
Assignee: Steve Loughran
Hadoop has lots of tests that start clusters, but I don't see any that test the
command line scripts working. Which means that changes to the scripts and the
code behind them may not get picked up rapidly, and regressions won't get
picked up by Hudson and apportioned to the specific patches.
Propose:
* an abstract test case that can exec scripts on startup; wait for them to
finish, kill them if they take too long
* test cases for every service (namenode, tasktracker, datanode, etc)
* tests that try invalid commands, -help options
* tests that start the services, assert that they are live, and shut them down
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