[ 
http://issues.apache.org/jira/browse/LOG4NET-77?page=comments#action_12424298 ] 
            
Ron Grabowski commented on LOG4NET-77:
--------------------------------------

Which one of the two Assert statements are correct? StackTrace is null.

[Test]
public void TestExceptionPattern()
{
        StringAppender stringAppender = new StringAppender();
        PatternLayout layout = new PatternLayout("%exception{stacktrace}");
        stringAppender.Layout = layout;

        ILoggerRepository rep = 
LogManager.CreateRepository(Guid.NewGuid().ToString());
        BasicConfigurator.Configure(rep, stringAppender);

        ILog log1 = LogManager.GetLogger(rep.Name, "TestExceptionPattern");

        Exception exception = new Exception("Oh no!");
        log1.Info("TestMessage", exception);

        /* From ExceptionPatternConverter.cs:
                If there is no exception then nothing will be output
                and no trailing newline will be appended.
                It is typical to put a newline before the exception
                and to have the exception as the last data in the pattern.
        */

        // ???
        Assert.AreEqual(string.Empty, stringAppender.GetString());

        // ???
        Assert.AreEqual(SystemInfo.NullText, stringAppender.GetString());

        stringAppender.Reset(); 
}

> A small improvement of log4net.Layout.Pattern.ExceptionPatternConverter  - 
> added 'Option' propery support
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: LOG4NET-77
>                 URL: http://issues.apache.org/jira/browse/LOG4NET-77
>             Project: Log4net
>          Issue Type: Improvement
>    Affects Versions: 1.2.10
>            Reporter: Imrich Olha
>         Assigned To: Ron Grabowski
>            Priority: Minor
>         Attachments: ExceptionPatternConverter-WithOptionSupport.cs.patch, 
> ExceptionPatternConverter.cs
>
>
> A small improvement of log4net.Layout.Pattern.ExceptionPatternConverter  - 
> added 'Option' propery support
> Example of usage:
>     <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
>       <layout type="log4net.Layout.PatternLayout">
>         <conversionPattern value="%exception{TargetSite} - 
> %exception{Message}%newline" />
>       </layout>
>     </appender>

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