[ https://issues.apache.org/jira/browse/MRUNIT-185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dave Beech resolved MRUNIT-185.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 1.1.0

Good find, Joseph - thanks! Committed to trunk and trunk-hadoop1
                
> IllegalFormatException for '%' in Output
> ----------------------------------------
>
>                 Key: MRUNIT-185
>                 URL: https://issues.apache.org/jira/browse/MRUNIT-185
>             Project: MRUnit
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Joseph Beard
>             Fix For: 1.1.0
>
>         Attachments: JIRA_185.patch
>
>
> In cases where the expected output does not match the actual output, the Errors class will treat the error message created by the TestDriver.checkTypesAndLogError(...) method as a format string.  If either the Expected or Actual Output value contains a '%' character, the String.format will result in some type of IllegalFormatException.  In my case, I received an UnknownFormatConversionException with "%D" in the expected output.
> Fortunately, this behavior is only triggered if the unit test is in error, but it can make tracking down the source of the issue hard to find.

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