public void UseCase()
{
var appender = new ConsoleAppender();
_wrapper = new Mock <IConsoleWrapper>();
_wrapper.Setup(x => x.WriteLine(It.IsAny <string>())).Callback <string>(x => _lastLine = x);
appender.SetFirstField(_wrapper.Object);
appender.Append(new LogEvent(0, LogLevel.Info, "A topic", "Some Info", DateTime.Now, 0,
Thread.CurrentThread.ManagedThreadId.ToString(), 1));
var end = " - [Info] A topic: Some Info [" + Thread.CurrentThread.ManagedThreadId + "]";
Check.That(_lastLine.EndsWith(end))
.IsTrue(_lastLine + " should end with " + end);
}