public void TestingCourseRemovingStudents()
        {
            string name = "Tech class";
            string studentName = "John";
            int id = 10000;
            var student = new Student(studentName, id);
            var course = new Course(name);
            course.AddStudent(student);
            course.RemoveStudent(student);

            Assert.AreEqual(
                0,
                course.Students.Count,
                string.Format("The length {0} does not equal the expected length {1}",
                course.Students.Count,
                0));
        }