示例#1
0
        public void ShouldFillArea()
        {
            var canvasDrawingCommand = new CanvasDrawingCommand();

            canvasDrawingCommand.Draw("20", "4");
            var canvas = canvasDrawingCommand.Canvas;

            var lineDrawingCommand = new LineDrawingCommand(canvas);

            lineDrawingCommand.Draw("1", "2", "6", "2");
            lineDrawingCommand.Draw("6", "3", "6", "4");

            var rectangleDrawingCommand = new RectangleDrawingCommand(canvas);

            rectangleDrawingCommand.Draw("14", "1", "18", "3");

            var bucketFillDrawingCommand = new BucketFillDrawingCommand(canvas);

            bucketFillDrawingCommand.Draw("10", "3", "o");

            var elements    = canvas.Elements;
            var filledCount = 0;
            var emptyCount  = 0;

            for (var x = 0; x < elements.GetUpperBound(0); x++)
            {
                for (var y = 0; y < elements.GetUpperBound(1); y++)
                {
                    if (elements[x, y] == null)
                    {
                        emptyCount++;
                    }
                    else if (elements[x, y].Value.Equals("o"))
                    {
                        filledCount++;
                    }
                }
            }

            Assert.AreEqual(13, emptyCount);
            Assert.AreEqual(47, filledCount);
        }
        public void CanNotDrawLineOutOfCanvas()
        {
            var canvasDrawingCommand = new CanvasDrawingCommand();

            canvasDrawingCommand.Draw("20", "4");
            var canvas = canvasDrawingCommand.Canvas;

            Assert.That(() => {
                var lineDrawingCommand = new LineDrawingCommand(canvas);
                lineDrawingCommand.Draw("1", "5", "6", "5");
            }, Throws.InstanceOf <ArgumentOutOfRangeException>());
        }
        public void ShouldDrawLineInCanvas()
        {
            var canvasDrawingCommand = new CanvasDrawingCommand();

            canvasDrawingCommand.Draw("20", "4");
            var canvas = canvasDrawingCommand.Canvas;

            var lineDrawingCommand = new LineDrawingCommand(canvas);

            lineDrawingCommand.Draw("1", "2", "6", "2");

            var elements = canvas.Elements;

            for (int i = 1; i <= 6; i++)
            {
                Assert.AreEqual("x", elements[i, 2].Value);
            }
        }