Joseph Beard created MRUNIT-185:
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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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