[HDFS-6927] Add unit tests

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HDFS-6581
• Fix Version/s: 2.6.0
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Arpit Agarwal
• Reporter: Arpit Agarwal
• Created: 23/Aug/14 20:57
• Updated: 01/Dec/14 03:07
• Resolved: 27/Aug/14 22:52

Description

Add a bunch of unit tests to cover flag persistence, propagation to DN, ability to write replicas to RAM disk, lazy writes to disk and eviction from RAM disk.