/// <summary>
        ///A test for button_del_Click
        ///</summary>
        [TestMethod()]
        [DeploymentItem("SDKSample.exe")]
        public void button_del_ClickTest()
        {
            MockRepository mocks = new MockRepository();
            IImageRepository imgRepos = mocks.StrictMock<IImageRepository>();

            using (mocks.Record())
            {
                Expect
                   .Call(imgRepos.GetFirstKey())
                   .Return(1);
                Expect
                    .Call(imgRepos.GetNextKey(1))
                    .Return(2);
                Expect
                    .Call(imgRepos.GetEntity(1))
                    .Return(Image.FromFile("C:\\Users\\abuobe\\Desktop\\Photo_Flipper_Demo_Copy\\TestProject_GraphicalComponents\\images\\pic_011.png"));
                Expect
                    .Call(imgRepos.GetEntity(2))
                    .Return(Image.FromFile("C:\\Users\\abuobe\\Desktop\\Photo_Flipper_Demo_Copy\\TestProject_GraphicalComponents\\images\\pic_012.png"));

                imgRepos.DelEntity(1);
                    LastCall.IgnoreArguments();

                Expect
                    .Call(imgRepos.GetNextKey(1))
                    .Return(2);
                Expect
                    .Call(imgRepos.GetNextKey(2))
                    .Return(3);
                Expect
                   .Call(imgRepos.GetEntity(2))
                   .Return(Image.FromFile("C:\\Users\\abuobe\\Desktop\\Photo_Flipper_Demo_Copy\\TestProject_GraphicalComponents\\images\\pic_014.png"));
                Expect
                   .Call(imgRepos.GetEntity(3))
                   .Return(Image.FromFile("C:\\Users\\abuobe\\Desktop\\Photo_Flipper_Demo_Copy\\TestProject_GraphicalComponents\\images\\pic_015.png"));
            }

            IDisplayParametersRepository dispParamRepos = mocks.StrictMock<IDisplayParametersRepository>();

            using (mocks.Record())
            {
                Expect
                   .Call(dispParamRepos.GetUserKey())
                   .Return(2);
                Expect
                    .Call(dispParamRepos.GetEntity(2))
                    .Return(new DisplayParameters(new System.Windows.Media.Media3D.Point3D(0.05, 0.05, 0.05), TimeSpan.FromMilliseconds(1000)));
            }

            Window1_Accessor target = new Window1_Accessor(); // TODO: Initialize to an appropriate value
            target._imgRepository = imgRepos;
            target._dispParamRepository = dispParamRepos;
            object sender = this; // TODO: Initialize to an appropriate value
            EventArgs e = EventArgs.Empty; // TODO: Initialize to an appropriate value
            target.OnLoaded(sender, e);
            target.button_del_Click(null, null);
            Assert.AreEqual(target._currentPic, 2);
        }