public void TestToStringMetothdInProxyFrameDoNotHandleExeptions()
 {
     TileFactory tileFactory = new NumberTileFactory();
     FrameBuilder frameBuilder = new ClassicPatternFrameBuilder(tileFactory);
     var frameDirector = new FrameDirector(frameBuilder);
     var expectetFrame = frameDirector.ConstructFrame(5, 5);
     var proxyFrame = new ProxyFrame(expectetFrame);
     string expectedresult = "-----------------\r\n|  1  2  3  4  5|\r\n|  6  7  8  9 10|\r\n| 11 12 13 14 15|\r\n| 16 17 18 19 20|\r\n| 21 22 23 24   |\r\n-----------------";
     string actualsresult = proxyFrame.ToString();
     Assert.AreEqual(expectedresult, actualsresult);
 }