public void DeletePicture()
        {
            MockDAL mock = new MockDAL();

            mock.InsertAllPictures();
            mock.InsertAllEXIFData();
            mock.InsertAllIPTCData();

            int count_before = mock.PictureList.Count;

            mock.DeletePicture("IAmBatman");

            Assert.That(mock.PictureList.Count, Is.LessThan(count_before));
        }