[HDFS-15019] Refactor the unit test of TestDeadNodeDetection

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.3.0
• Hadoop Flags: Reviewed
• Assignee: Lisheng Sun
• Reporter: Yiqun Lin
• Created: 27/Nov/19 15:13
• Updated: 28/Nov/19 06:58
• Resolved: 28/Nov/19 06:44

Description

There are many duplicated lines in unit test TestDeadNodeDetection. We can simplified that.

In additional in testDeadNodeDetectionInMultipleDFSInputStream, the DFSInputstream is passed incorrectly in asset operation.

din2 = (DFSInputStream) in1.getWrappedStream();

Should be

din2 = (DFSInputStream) in2.getWrappedStream();