public void Delete_DeletesCourseFromDB_true()
        {
            Course course1 = new Course("Math Party", "MTH505");

            course1.Save();
            Course course2 = new Course("CS Party", "CS502");

            course2.Save();
            List <Course> expectedResult = new List <Course> {
                course2
            };

            course1.Delete();
            List <Course> result = Course.GetAll();

            Assert.Equal(expectedResult, result);
        }