public void TestDispose2()
{
var source1 = new Mock <ILogFile>();
var source2 = new Mock <ILogFile>();
var logFile = new MergedLogFile(_taskScheduler, TimeSpan.FromMilliseconds(1), source1.Object, source2.Object);
source1.Verify(x => x.AddListener(logFile, It.IsAny <TimeSpan>(), It.IsAny <int>()), Times.Once);
source2.Verify(x => x.AddListener(logFile, It.IsAny <TimeSpan>(), It.IsAny <int>()), Times.Once);
logFile.Dispose();
source1.Verify(x => x.RemoveListener(logFile), Times.Once, "because a merged log file is supposed to remove itself as a listener from its sources when its being disposed of");
source2.Verify(x => x.RemoveListener(logFile), Times.Once, "because a merged log file is supposed to remove itself as a listener from its sources when its being disposed of");
}
protected override void DisposeAdditional()
{
_unfilteredLogFile?.Dispose();
}