//[TestMethod]
        public void DownloadTest()
        {
            const string folder = "";
            const string file   = "test.sfs";

            var  dropboxClient = new DropboxWrapper();
            Task task          = dropboxClient.Download(folder, file);

            task.Wait();

            Assert.IsTrue(dropboxClient.LastDownloadedFile != null);
            Assert.IsTrue(dropboxClient.LastDownloadedFile.Length == 709);

            File.WriteAllBytes("dropboxTest2.sfs", dropboxClient.LastDownloadedFile);

            Assert.IsTrue(FileEquals("dropboxTest.sfs", "dropboxTest2.sfs"));
        }
        public async void DownloadFile(string accessToken, string selectedFile)
        {
            await _dropbox.Download("", selectedFile);

            _messenger.Send(new DropboxFileDownloadFinishedMsg(selectedFile, _dropbox.LastDownloadedFile));
        }