public void GetRating_NegativeOne_ThrowsInvalidArgumentException()
{
var age = new AgeModifer();
Assert.Throws<ArgumentException>(() => age.GetRating(-1));
}
public void GetRating_ReturnsCorrectRating(int age, double expected)
{
AgeModifer ageModifier = new AgeModifer();
var modifier = ageModifier.GetRating(age);
Assert.AreEqual(expected,modifier);
}
public void GetRating_71_ThrowsDeclinedException()
{
var age = new AgeModifer();
Assert.Throws<DeclinedException>(() => age.GetRating(71));
}