public void UserOwnsPresentationReturnsFalseIfPresentationDoesNotExist()
        {
            var target = new DatabaseContext();
            var testUserName = "******";
            var presentation = TestPresentation();
            presentation.UserName = testUserName;
            var db = new PresentationsEntities();
            db.Presentations.Add(presentation);
            db.SaveChanges();
            var result = target.UserOwnsPresentation(13, "blabla");
            Assert.IsFalse(result);

        }
        public void UserOwnsPresentationReturnsTrueIfUserOwnsPresentation()
        {
            var target = new DatabaseContext();
            var testUserName = "******";
            var presentation = TestPresentation();
            presentation.UserName = testUserName;
            var db = new PresentationsEntities();
            db.Presentations.Add(presentation);
            db.SaveChanges();
            var result = target.UserOwnsPresentation(presentation.PresentationId, testUserName);
            Assert.IsTrue(result);

        }