[MRUNIT-158] withOutput doesn't generate useful information with MapWritable on error

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 1.0.0
• Assignee: Dave Beech
• Reporter: Patrick D. Hunt
• Created: 09/Nov/12 22:44
• Updated: 08/Dec/12 00:56
• Resolved: 30/Nov/12 23:21

Description

Using withOutput generates the following, notice that the hashcode is printed rather than some useful detail as to the content of the maps:

Nov 9, 2012 2:40:01 PM org.apache.hadoop.mrunit.TestDriver logError
SEVERE: Missing expected output (null-0, org.apache.hadoop.io.MapWritable@e1) at position 0.
Nov 9, 2012 2:40:01 PM org.apache.hadoop.mrunit.TestDriver logError
SEVERE: Received unexpected output (null-0, org.apache.hadoop.io.MapWritable@2059) at position 0.

Issue Links

• is related to: HADOOP-9124 SortedMapWritable violates contract of Map interface for equals() and hashCode()