public void Send_WithCustomEvaluator_SendsAllMessages()
{
// Arrange
var evaluator = new MyEvaluator();
var appender = new MyBufferedAppender(evaluator)
{
SendAsync = true
};
appender.ActivateOptions();
ConfigureAppender(appender);
var logger = LogManager.GetLogger(this.GetType());
// Act
logger.InfoFormat("Message 1");
logger.InfoFormat("Message 2");
logger.InfoFormat("Message 3");
StopApplication();
// Assert
Assert.That(MessageSink.Logs.Count, Is.EqualTo(3), "All remaining messages should be sent at the end");
}
public void Send_WithTimeEvaluator_SendsAllMessages()
{
/*
* <appender name="BufferingForwardingAppender" type="buffered_appender.MyBufferedAppender">
* <bufferSize value="3" />
* <param name="SendAsync" value="true"/>
* <evaluator type="log4net.Core.TimeEvaluator">
* <threhold value="1"/>
* </evaluator>
*
* </appender>
*
* see http://stackoverflow.com/questions/11319319/log4net-bufferingforwardingappender-performance-issue
*/
// Arrange
const int oneSecond = 1;
var appender = new MyBufferedAppender(new TimeEvaluator(oneSecond))
{
SendAsync = true
};
appender.ActivateOptions();
ConfigureAppender(appender);
var logger = LogManager.GetLogger(this.GetType());
// Act
logger.InfoFormat("Message 1");
logger.InfoFormat("Message 2");
logger.InfoFormat("Message 3");
var messagesbeforeWait = MessageSink.Logs.ToList();
var twoSeconds = new TimeSpan(0, 0, 0, 2);
Thread.Sleep(twoSeconds);
logger.InfoFormat("Message 4");
Thread.Sleep(twoSeconds);
var messagesAfterWait = MessageSink.Logs.ToList();
logger.InfoFormat("Message 5");
StopApplication();
// Assert
Assert.That(messagesbeforeWait.Count, Is.EqualTo(0), "No Messages should be sent before the wait time");
Assert.That(messagesAfterWait.Count, Is.EqualTo(4), "The first four should be sent");
Assert.That(MessageSink.Logs.Count, Is.EqualTo(5), "All remaining messages should be sent at the end");
}
public void Send_WithDefaultEvaluator_SendsAllMessages()
{
/*
* <appender name="BufferingForwardingAppender" type="buffered_appender.MyBufferedAppender">
* <bufferSize value="3" />
* <param name="SendAsync" value="true"/>
* <Fix value="0"/> <!-- Set Fix flag to NONE -->
* </appender>
*
* see http://stackoverflow.com/questions/11319319/log4net-bufferingforwardingappender-performance-issue
*/
// Arrange
var appender = new MyBufferedAppender {
BufferSize = 3, SendAsync = true
};
appender.ActivateOptions();
ConfigureAppender(appender);
var logger = LogManager.GetLogger(this.GetType());
// Act
logger.InfoFormat("Message 1");
logger.InfoFormat("Message 2");
logger.InfoFormat("Message 3");
logger.InfoFormat("Message 4");
logger.InfoFormat("Message 5");
// Assert
Assert.That(MessageSink.Logs.Count, Is.EqualTo(4), "The fourth message should trigger the Send event since the buffer size of 3 is full");
StopApplication();
Thread.Sleep(1000);
Assert.That(MessageSink.Logs.Count, Is.EqualTo(5), "All remaining messages should be sent at the end");
}
public void SynchronousAppender_Send_MeasurePerformance(int bufferSize, int messageCount, AppenderType appenderType)
{
// Arrange
var appender = new MyBufferedAppender
{
BufferSize = bufferSize,
SendAsync = appenderType == AppenderType.Asynchronous
};
appender.ActivateOptions();
ConfigureAppender(appender);
var logger = LogManager.GetLogger(this.GetType());
// Act
var stopWatch = new Stopwatch();
stopWatch.Start();
for (int i = 0; i < messageCount; i++)
{
logger.Info(Guid.NewGuid().ToString());
}
stopWatch.Stop();
StopApplication();
// Assert
if (MessageSink.Logs.Count != messageCount)
{
// Give it time to finish sending
Thread.Sleep(2000);
}
Assert.That(MessageSink.Logs.Count, Is.EqualTo(messageCount), "Not all the messages were sent!");
Console.WriteLine("Type:{3}|BufferSize:{0}|MessageCount:{1}|Time(seconds):{2}", bufferSize, messageCount, stopWatch.Elapsed.TotalSeconds, appenderType);
}
