Dev2.CustomControls.Progress.ProgressFileDownloader.Cancel C# (CSharp) Method

        public void Cancel()
        {
            _webClient.CancelAsync();
            ProgressDialog.Close();
            IsBusyDownloading = false;
            if(_file.Exists(_tmpFileName))
            {
                _file.Delete(_tmpFileName);
            }
        }

        public void ProgressFileDownloader_Download_Cancel_HasNoError_ExpectSuccessAndFileDeleted()
        {
            //------------Setup for test--------------------------
            var webClient = new Mock<IDev2WebClient>();
            var file = new Mock<IFile>();
            var crytpto = new Mock<ICryptoProvider>();
            ProgressFileDownloader.GetProgressDialogViewModel = ((a, b) => new Mock<IProgressNotifier>().Object);
            var ax = new ProgressFileDownloader(webClient.Object, file.Object, crytpto.Object);
            var stream = new MemoryStream();
            stream.WriteByte(1);
            stream.WriteByte(2);
            stream.WriteByte(3);
            crytpto.Setup(a => a.ComputeHash(It.IsAny<Stream>())).Returns(new byte[] { 0, 1, 2 });
            file.Setup(a => a.Open("bob", FileMode.Open)).Returns(new MemoryStream());

            //------------Execute Test---------------------------
            ax.Download(new Uri("http://bob"), "dave", false, "moo", "012");
            ax.Cancel();

            //------------Assert Results-------------------------
            file.Verify(a => a.Delete("dave"), Times.Never());
            webClient.Verify(a => a.CancelAsync());
        }