public MedicalCourse GetCourseById(int id)
        {
            CourseContext        context = HttpContext.RequestServices.GetService(typeof(CourseContext)) as CourseContext;
            GetCourseByIdHandler handler = new GetCourseByIdHandler(context);

            return(handler.Handle(id));
        }
        public void GetCourseByIdTest()
        {
            // arrange
            List <MedicalCourse> list = new List <MedicalCourse>();

            int id = 2;

            MedicalCourse expected = new MedicalCourse
            {
                Name          = "Ёндокринологи¤",
                Qualification = 2
            };

            //act
            Course.Data.CourseContext context = new Course.Data.CourseContext(connString);
            GetCourseByIdHandler      handler = new GetCourseByIdHandler(context);

            handler.Handle(id);


            using (conn = new MySqlConnection(connString))
            {
                conn.Open();
                string query = string.Format("select * from Courses where course_id=2");

                MySqlCommand cmd = new MySqlCommand(query, conn);

                using (var reader = cmd.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        list.Add(new MedicalCourse()
                        {
                            Id            = Convert.ToInt32(reader["course_id"]),
                            Name          = reader["course_name"].ToString(),
                            Qualification = Convert.ToInt32(reader["qualification"])
                        });
                    }
                }
            }

            if (list[0].Name == expected.Name && list[0].Qualification == expected.Qualification)
            {
                Assert.IsTrue(true);
            }
        }