public void SetUp()
		{
			_descriptor = new NuGenControlImageDescriptor();
			_eventSink = new DescriptorEventSink(_descriptor);
			_sampleBmp = new Bitmap(1, 1);
			_sampleImageList = new ImageList();
			_sampleImageList.Images.Add(_sampleBmp);
		}
		public DescriptorEventSink(NuGenControlImageDescriptor descriptor)
		{
			Assert.IsNotNull(descriptor);

			descriptor.ImageChanged += delegate
			{
				_imageChangedCount.Inc();
			};

			descriptor.ImageIndexChanged += delegate
			{
				_imageIndexChangedCount.Inc();
			};

			descriptor.ImageListChanged += delegate
			{
				_imageListChangedCount.Inc();
			};
		}