public void CompareToThrowsOnNull()
{
AreaMomentOfInertia metertothefourth = AreaMomentOfInertia.FromMetersToTheFourth(1);
Assert.Throws <ArgumentNullException>(() => metertothefourth.CompareTo(null));
}
public void CompareToThrowsOnTypeMismatch()
{
AreaMomentOfInertia metertothefourth = AreaMomentOfInertia.FromMetersToTheFourth(1);
Assert.Throws <ArgumentException>(() => metertothefourth.CompareTo(new object()));
}