使用log4net和xUnit

Question

We have some code that emits messages to log4net and would like to see those same messages emitted when we run tests on that code under xUnit.

Is there a way to tell xUnit to start up log4net? I have modified the .config file for xunit.console It runs fine, but there is no indication of any logging activity.

Answer 1

Generally when unit testing log4net log calls, a MemoryAppender is used like this:

private MemoryAppender testAppender;

[SetUp]
public void SetUp()
{
    testAppender = new MemoryAppender();
    BasicConfigurator.Configure(testAppender);

    // etc    
}

[Test]
public void TestLogging()
{
   // etc

   var events = testAppender().GetEvents();
   Assert.AreEqual(1, events.Count()); 
}