public void Execute_DrawingStyleChange_Test()
        {
            IDrawingFeatures drawingFeatures = new DrawingFeaturesMock();

            DrawingState drawingState = DrawingState.DrawLine;
            DrawingStyleTool target = new DrawingStyleTool(drawingFeatures, drawingState);

            target.Execute();

            DrawingState actual = drawingFeatures.DrawingState;

            Assert.AreEqual(drawingState,actual);
        }