public void WhenทำการประเมนเกรดWithException()
{
getScoreFunc = sut.Invoking(it => it.GetGradeByScore(score));
}
public void Input_Negative_65_Score_Then_System_Must_Throw_An_Exception()
{
sut.Invoking(it => it.GetGradeByScore(-65))
.Should()
.Throw <ArgumentException>();
}