The filters provided by the extras companion have very little test coverage. This bug will be used to add additional unit tests. This is in conjunction with porting the filters to log4cxx (https://issues.apache.org/jira/browse/LOGCXX-276)
Initial commit in rev 657626. More tests are needed for ExpressionFilter and rules.
Could you provide a list of tests needed?
This bug is driven by the tests needed to implement ExpressionFilter for log4cxx. There isn't a list, there is just code that has no tests. If someone wants to start writing unit tests for ExpressionFilter, feel free. Just the standard procedure of writing unit tests for existing code and trying to approach 100% coverage. If additional tests aren't written before time for a log4j 1.2.16 release, then this bug can be closed as fixed and a new bug opened for the next batch of tests. Commits against a bug should not span releases, so that the bug can be used as part of the change log.