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https://issues.apache.org/jira/browse/LOG4NET-475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dominik Psenner closed LOG4NET-475.
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Resolution: Fixed
Assignee: Dominik Psenner
You should write the test such that it initializes the appender and tests its
functionality without requiring the entire framework to be loaded. Please send
future questions to one of the mailing lists mentioned at
https://logging.apache.org/log4net/mail-lists.html
> Cannot add appender in Log4net at runtime
> -----------------------------------------
>
> Key: LOG4NET-475
> URL: https://issues.apache.org/jira/browse/LOG4NET-475
> Project: Log4net
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 1.2.13
> Environment: Windows, C#, Visual Studio unit testing
> Reporter: Mark
> Assignee: Dominik Psenner
> Priority: Blocker
> Labels: test
>
> I am trying to write a custom appender that rolls over daily, as well as on a
> size limit, and cleans up after itself in the process. I wrote the
> implementation using the AppenderSkeleton as a base class, then attempted to
> write a unit test to test the appender functionality. I do the following:
> DailyRollingFileAppender appender = new
> DailyRollingFileAppender();
> appender.RollOverOnSize = true;
> appender.RollOverDaily = true; //dont think I can test this
> appender.MaxFileSizeBytes = 1024;
> appender.RolloverDayCount = 1;
> appender.RollOverOnSize = true;
> appender.LoggingDirectory =
> Path.Combine(Directory.GetCurrentDirectory(), "TestLogFolder");
> appender.LogFileName = "TestLogFileName";
> appender.DateTimeFormatString = "YYYY-MM-DD-hh-mm-ss";
> appender.Cleanup = true;
> appender.Layout = new PatternLayout();
> appender.MaxNumberOfFiles = 10;
> appender.Name = "testAppender";
> //lets write some crappy log messages
> byte[] bytes = new byte[1050];
> Random rnd = new Random();
> rnd.NextBytes(bytes);
> ILog log = LogManager.GetLogger("LoggerName");
> Logger logger = (Logger)log.Logger;
> logger.AddAppender(appender);
> logger.Log(Level.Info, Encoding.UTF8.GetString(bytes), new
> Exception());
> logger.Log(Level.Info, Encoding.UTF8.GetString(bytes), null);
> The code is based on the only examples I can find of people adding appenders
> to loggers at runtime, which you would want to do for a unit test. The issue
> is that the Logger instance I get from the call to ILog.Logger in the code
> above as a collection of appenders of type ReadOnlyAppenderCollection. The
> code silently consumes the exception it throws internally and never actually
> adds the appender to the collection. Can/How do I add an appender to a logger
> at runtime in the manner described above, so I can appropriately test that it
> functions.
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