public void TestGetAllStudentsGrades()
        {
            DbCourses dbCourses = new DbCourses();

            dbCourses.Insert("Test Course", "Test Course");
            ObjectResult result     = (ObjectResult)gradesController.GetAllStudentsGrades("Test Course").Result;
            int?         statusCode = result.StatusCode;

            Assert.Equal(200, statusCode);
            if (result.Value.GetType().Name == "String")
            {
                dbCourses.Delete("Test Course");
                Assert.True(1 == 1, "That Course");
            }
            else
            {
                List <AllStudentsInSingleCourse> actual   = (List <AllStudentsInSingleCourse>)result.Value;
                ExpectedGrades expectedGrades             = new ExpectedGrades();
                List <AllStudentsInSingleCourse> expected = expectedGrades.AllStudentsInCourse("Test Course");
                Assert.Equal(expected.Count, actual.Count);
                for (int i = 0; i < expected.Count; ++i)
                {
                    Assert.Equal(expected[i].grade, actual[i].grade);
                }
                dbCourses.Delete("Test Course");
            }
        }