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From "Joseph Beard (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MRUNIT-185) IllegalFormatException for '%' in Output
Date Mon, 22 Apr 2013 18:09:15 GMT
Joseph Beard created MRUNIT-185:
-----------------------------------

             Summary: 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


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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