def test_cards_can_be_compared_before_a_suit_is_led(self) -> None:
players = [Player(), Player(), Player(), Player()]
deal = Deal(players=players, bidder_index=0)
trick = Trick(deal=deal, leading_player_index=0)
# The queen should be consider higher, as we are assuming we are not
# dealing with a trump suit, given that no trump suit was even specified yet.
self.assertEqual(
1,
trick.compare_cards(Card(suit=Suit.HEARTS, rank=Rank.JACK),
Card(suit=Suit.HEARTS, rank=Rank.QUEEN)))
# Unrelated cards cannot be compared properly without a trump suit or a led suit.
self.assertEqual(
0,
trick.compare_cards(
Card(suit=Suit.HEARTS, rank=Rank.JACK),
Card(suit=Suit.SPADES, rank=Rank.ACE),
))
deal.trump_suit = Suit.HEARTS
# Now that we have a trump suit defined, the higher trump should rank higher.
self.assertEqual(
-1,
trick.compare_cards(Card(suit=Suit.HEARTS, rank=Rank.JACK),
Card(suit=Suit.HEARTS, rank=Rank.QUEEN)))
def test_cards_can_be_compared_after_trump_suit_is_led(self) -> None:
players = [Player(), Player(), Player(), Player()]
players[0].hand = {Card(suit=Suit.SPADES, rank=Rank.QUEEN)}
deal = Deal(players=players, bidder_index=0, trump_suit=Suit.SPADES)
trick = Trick(deal=deal, leading_player_index=0)
# The trick starts with the trump suit.
trick.play(Card(suit=Suit.SPADES, rank=Rank.QUEEN))
# The Johnny scores higher than the ten, in contrast to the normal order.
# Same thing for the Nerf (9).
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=Suit.SPADES, rank=Rank.JACK),
Card(suit=Suit.SPADES, rank=Rank.TEN),
))
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=Suit.SPADES, rank=Rank.NINE),
Card(suit=Suit.SPADES, rank=Rank.TEN),
))
# Any trump card will rank higher than any non-trump card.
for first_rank, second_rank, second_suit in product(Rank, Rank, Suit):
# We are testing non-trump cards for the second card, so skip the trump cards.
if second_suit == deal.trump_suit:
continue
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=Suit.SPADES, rank=first_rank),
Card(suit=second_suit, rank=second_rank),
),
)
# Any two cards that both aren't trump will be incomparable.
for first_rank, first_suit, second_rank, second_suit in product(
Rank, Suit, Rank, Suit):
# If the suits match or any equals trump, skip.
if first_suit == deal.trump_suit or second_suit == deal.trump_suit or first_suit == second_suit:
continue
self.assertEqual(
0,
trick.compare_cards(Card(suit=first_suit, rank=first_rank),
Card(suit=second_suit, rank=second_rank)))
def test_cards_can_be_compared_if_non_trump_suit_is_led(self) -> None:
players = [Player(), Player(), Player(), Player()]
players[0].hand = {Card(suit=Suit.SPADES, rank=Rank.QUEEN)}
deal = Deal(players=players, bidder_index=0, trump_suit=Suit.CLUBS)
trick = Trick(deal=deal, leading_player_index=0)
# The led suit will be Spades, but the trump suit is Clubs.
trick.play(Card(suit=Suit.SPADES, rank=Rank.QUEEN))
# Any trump card will rank higher than any non-trump card, regardless whether
# that other card was in the led suit or not.
for first_rank, second_rank, second_suit in product(Rank, Rank, Suit):
# We are testing non-trump cards for the second card, so skip the trump cards.
if second_suit == deal.trump_suit:
continue
assert deal.trump_suit is not None
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=deal.trump_suit, rank=first_rank),
Card(suit=second_suit, rank=second_rank),
),
)
# Any card in the led suit beats any other card that is not trump or in the led suit.
for first_rank, second_rank, second_suit in product(Rank, Rank, Suit):
# We are testing second cards that are non-trump and not the led suit, so skip those.
if second_suit == deal.trump_suit or second_suit == trick.led_suit:
continue
assert trick.led_suit is not None
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=trick.led_suit, rank=first_rank),
Card(suit=second_suit, rank=second_rank),
),
)
# Two cards both in the led suit will obey the regular order.
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=Suit.SPADES, rank=Rank.QUEEN),
Card(suit=Suit.SPADES, rank=Rank.JACK),
))
self.assertEqual(
-1,
trick.compare_cards(
Card(suit=Suit.SPADES, rank=Rank.TEN),
Card(suit=Suit.SPADES, rank=Rank.NINE),
))
# Two cards that both are neither trump nor the led suit will be incomparable.
for first_rank, first_suit, second_rank, second_suit in product(
Rank, Suit, Rank, Suit):
if first_suit in [
deal.trump_suit, trick.led_suit
] or second_suit in [deal.trump_suit, trick.led_suit]:
continue
self.assertEqual(
0,
trick.compare_cards(
Card(suit=first_suit, rank=first_rank),
Card(suit=second_suit, rank=second_rank),
),
)
