public void Choose_WhenCloneFuncWasNotDefined_WillThrowInvalidOperationException()
{
WeightedPool <int> pool = new WeightedPool <int>(Singleton.DefaultRandom);
pool.Add(1, 1);
Assert.ThrowsException <InvalidOperationException>(() => pool.Choose());
}
public void Choose_WhenPoolHas1Item_WillGetCloneOfItemWithDifferentReference()
{
WeightedPool <PlayingCard> pool = new WeightedPool <PlayingCard>(Singleton.DefaultRandom, PlayingCard.Clone);
PlayingCard kingOfHearts = new PlayingCard
{
DisplayName = "King of Hearts", FaceValue = 13, Suit = PlayingCard.Suits.Hearts
};
pool.Add(kingOfHearts, 1);
PlayingCard selectedCard = pool.Choose();
Assert.AreNotEqual(kingOfHearts, selectedCard);
Assert.AreEqual(kingOfHearts.FaceValue, selectedCard.FaceValue);
Assert.AreEqual(kingOfHearts.DisplayName, selectedCard.DisplayName);
Assert.AreEqual(kingOfHearts.Suit, selectedCard.Suit);
Assert.AreEqual(1, pool.Count);
}
public void Choose_WhenPoolHas0Items_WillThrowInvalidOperationException()
{
WeightedPool <int> pool = new WeightedPool <int>(Singleton.DefaultRandom, x => x);
Assert.ThrowsException <InvalidOperationException>(() => pool.Choose());
}