public void Push_Bottom_AddedCardIsLast()
{
var pile = new Pile(new[] { RndCard(), RndCard(), RndCard() });
var card = RndCard();
pile.Push(card, PilePosition.Bottom);
Assert.AreSame(card, pile.Last());
}
public void Push_Middle_OneInPile_AddedCardIsLast()
{
var pile = new Pile(new[] { RndCard() });
var card = RndCard();
pile.Push(card, PilePosition.Middle);
Assert.AreSame(card, pile.Last());
}
public void Push_Middle_TwoInPile_AddedCardAlwaysIsInMiddle()
{
var pile = new Pile(new[] { RndCard(), RndCard() });
var card = RndCard();
pile.Push(card, PilePosition.Middle);
Assert.AreSame(pile.ElementAt(1), card);
Assert.IsFalse(ReferenceEquals(pile.First(), card));
Assert.IsFalse(ReferenceEquals(pile.Last(), card));
}
public void Pop_Middle_TakesOrderedGroup()
{
var source = new[] { RndCard(1), RndCard(2), RndCard(3), RndCard(4) };
var pile = new Pile(source);
using (Random.Returing(new[] { 2 }))
{
var result = pile.Pop(PilePosition.Middle, 2);
CollectionAssert.AreEqual(new[] { source[1], source[2] }, result);
Assert.AreEqual(2, result.Count, "result size");
Assert.AreEqual(2, pile.Size);
Assert.AreSame(source[0], pile.First(), "first");
Assert.AreSame(source[3], pile.Last(), "last");
}
}
public override Card Peek(Pile pile)
{
return(pile.Last());
}
