public void ExerciseTestMethodGetById()
        {
            var exerciseManager = new ExerciseManager(sUoW, mapper);

            sUoW.ExerciseRepo.GetById(18).Returns(new Exercise {
                Id = 18, TaskName = "TestTask4", CreateDateTime = DateTime.Now, UpdateDateTime = DateTime.Now, TaskTextField = "This is fourth UnitTest task"
            });
            Assert.AreEqual("TestTask4", exerciseManager.GetById(18).TaskName);
        }
        public void ExerciseTestMethodUpdate()
        {
            var exerciseManager = new ExerciseManager(sUoW, mapper);

            sUoW.ExerciseRepo.GetById(18).Returns(new Exercise {
                Id = 18, TaskName = "TestTask4", CreateDateTime = DateTime.Now, UpdateDateTime = DateTime.Now, TaskTextField = "This is fourth UnitTest task"
            });
            exerciseManager.Update(18, "TaskTest5", "TaskText for fifth task", "//code", 1, ".Net", DateTime.Now, "//testcode");
            Assert.AreEqual("TaskTest5", exerciseManager.GetById(18).TaskName);
        }