public void TestAddGradePoint()
{
Quiz quiz = new Quiz("MyQuiz");
quiz.AddNewGradePoint();
Assert.AreEqual(quiz.GradePoints.Count, 1);
GradePoint gradePoint = quiz.GradePoints[0] as GradePoint;
Assert.IsNotNull(gradePoint);
Assert.AreEqual(gradePoint.Percent, 0);
Assert.AreEqual(gradePoint.Point, 0);
}
