public void Test_AnswersController_PutAnswer()
        {
            AnswersController controller = new AnswersController(_context);

            var answer = _context.Answers.FirstOrDefault();

            var result = controller.PutAnswer(answer.Id, answer);

            var changedQuestion = _context.Answers.Find(answer.Id);

            //because of EF entity refs
            Assert.AreEqual(answer, changedQuestion);
        }