private double SimpleEstimate(GameState state, KnownHand myHand)
{
return(myHand.Sum(card =>
{
var relativePositionInDeck = 1.0 * _cardIndices[card] / (Deck.Count - 1);
return Math.Pow(relativePositionInDeck, state.Players.Count);
}));
}
public void OwnHand_CardNotInHand_CantBePlayed()
{
var sut = new KnownHand(new[] { new Card(Suit.Hearts, Rank.Nine) });
var card = new Card(Suit.Hearts, Rank.Ten);
var result = sut.CanPlay(card, TrickState.Initial);
Assert.False(result);
}
public void OwnHand_WhenHandEmpty_CantPlayCard()
{
var sut = new KnownHand(Enumerable.Empty <Card>());
var card = new Card(Suit.Hearts, Rank.Ten);
var result = sut.CanPlay(card, TrickState.Initial);
Assert.False(result);
}
public void OwnHand_Initially_AnyCardCanBePlayed()
{
var sut = new KnownHand(new[] {
new Card(Suit.Hearts, Rank.Nine),
new Card(Suit.Diamonds, Rank.King),
new Card(Suit.Club, Rank.Ten)
});
var card = new Card(Suit.Diamonds, Rank.King);
var result = sut.CanPlay(card, TrickState.Initial);
Assert.True(result);
}
public void OwnHand_SuitToFollowNotPresent_CanPlayAnother()
{
var sut = new KnownHand(new[] {
new Card(Suit.Club, Rank.Nine),
new Card(Suit.Diamonds, Rank.King),
});
var card = new Card(Suit.Diamonds, Rank.King);
var stateWithHeartsPlayed = TrickState.Initial
.Next(AsMove(new Card(Suit.Hearts, Rank.Five)));
var result = sut.CanPlay(card, stateWithHeartsPlayed);
Assert.True(result);
}