private void menuUnstage_Click(object sender, RoutedEventArgs e)
 {
     GetSelectedFileFullName(fileName =>
     {
         tracker.UnStageFile(fileName);
         ShowStatusMessage("Un-staged file: " + fileName);
     }, false);
 }
        public void GetFileStatusTest()
        {
            GitFileStatusTracker.Init(tempFolder);
            GitFileStatusTracker tracker = new GitFileStatusTracker(tempFolder);

            File.WriteAllLines(tempFile, lines);
            Assert.AreEqual(GitFileStatus.New, tracker.GetFileStatus(tempFile));

            tracker.StageFile(tempFile);
            Assert.AreEqual(GitFileStatus.Added, tracker.GetFileStatus(tempFile));

            tracker.UnStageFile(tempFile);
            Assert.AreEqual(GitFileStatus.New, tracker.GetFileStatus(tempFile));

            tracker.StageFile(tempFile);
            Assert.AreEqual(GitFileStatus.Added, tracker.GetFileStatus(tempFile));

            tracker.Commit("test commit");
            Assert.AreEqual(GitFileStatus.Tracked, tracker.GetFileStatus(tempFile));

            File.WriteAllText(tempFile, "changed text");
            tracker.Refresh();
            Assert.AreEqual(GitFileStatus.Modified, tracker.GetFileStatus(tempFile));

            tracker.StageFile(tempFile);
            Assert.AreEqual(GitFileStatus.Staged, tracker.GetFileStatus(tempFile));

            tracker.UnStageFile(tempFile);
            Assert.AreEqual(GitFileStatus.Modified, tracker.GetFileStatus(tempFile));

            File.Delete(tempFile);
            tracker.Refresh();
            Assert.AreEqual(GitFileStatus.Deleted, tracker.GetFileStatus(tempFile));

            tracker.StageFile(tempFile);
            Assert.AreEqual(GitFileStatus.Removed, tracker.GetFileStatus(tempFile));

            tracker.UnStageFile(tempFile);
            Assert.AreEqual(GitFileStatus.Deleted, tracker.GetFileStatus(tempFile));
        }