public void shuffled_deck_returns_different_order()
{
// Arrange
// Return "random" numbers 2 then 1 then 0
// to reverse the card order
var rng = Substitute.For<IRandom>();
rng.Next(100).ReturnsForAnyArgs(2, 1, 0);
var stackedDeck = GetStackedDeck();
var deck = Substitute.For<IDeck>();
deck.GetCards().Returns(stackedDeck);
IShoe shoe = new Shoe(deck);
shoe.CardCount().Should().Equal(3);
// Act
shoe.Shuffle(rng);
// Assert
for (var i = 2; i >= 0; i--)
{
shoe.Deal().Should().Be.SameAs(stackedDeck[i]);
shoe.CardCount().Should().Equal(i);
}
}
public void shoe_is_initialized_with_correct_number_of_cards([Values(1,2,6)] int decks)
{
// Act
IShoe shoe = new Shoe(decks);
// Assert
shoe.CardCount().Should().Equal(decks * 52);
}
public void shoe_throws_exception_if_deal_when_empty()
{
// Arrange
var card = Substitute.For<IBlackjackCard>();
IEnumerable<ICard> cards = new List<IBlackjackCard>() { card };
var deck = Substitute.For<IDeck>();
deck.GetCards().Returns(cards);
IShoe shoe = new Shoe(deck);
shoe.CardCount().Should().Equal(1);
shoe.Deal();
shoe.CardCount().Should().Equal(0);
// Act
shoe.Deal(); // Should throw a ShoeOutOfCardsException
}
public void unshuffled_deck_returns_expected_order()
{
// Arrange
var stackedDeck = GetStackedDeck();
var deck = Substitute.For<IDeck>();
deck.GetCards().Returns(stackedDeck);
IShoe shoe = new Shoe(deck);
shoe.CardCount().Should().Equal(3);
// Act
// Assert
for (var i = 0; i <= 2; i++)
{
var card = shoe.Deal();
card.Should().Be.SameAs(stackedDeck[i]); // 0, 1, 2
shoe.CardCount().Should().Equal(2-i); // 2, 1, 0
}
}