title: NUNIT Testing Log files in c#
body: <p>I am trying to verify that certain errors are logged in log4net file and how many times. 
  I am working on following code which will read one value and assert if it is right, but 
  I want to see how many times it appeared in the log file than assert it if it is true. </p>
  
  <pre><code>private string logfile;
  
  [SetUp]
  public void SetUp()
  {
      logfile = Path.Combine(
          Environment.GetEnvironmentVariable("ALLUSERSPROFILE"),
          "test.log");
  
      if (File.Exists(logfile))
          File.Delete(logfile);
  
      XmlConfigurator.Configure();
  }
  
  [Test] public void GivenLog4NetFileAppender_WhenLogInfoStringWithLog4Net_ThenWritesToDisk()
  {
      ILog log = LogManager.GetLogger(typeof (LoggingIntegrationTests));
      log.Info("Error 2");
  
      LogManager.Shutdown();
  
      Assert.That(File.ReadAllText(logfile),
                  Is.StringContaining("Error 2"));
  }
  </code></pre>
  
  <p>So in above code if Error 2 is logged 3 times than I want to assert that it appeared 3 times. 
  Thanks for you help</p>