public async Task DeleteLecture_BadRequest()
        {
            var response = await LectureController.Delete(null);

            var code = (StatusCodeResult)response.Result;

            Assert.AreEqual((int)HttpStatusCode.BadRequest, code.StatusCode);
        }
        public async Task DeleteLecture_ValidCall()
        {
            var response = await LectureController.Delete(1);

            var code = ((ObjectResult)response.Result).StatusCode;

            Assert.AreEqual((int)HttpStatusCode.OK, code);
        }