class Dealer():
''' Dealer class
Dealer class, implements the main methods a dealer would use in playing the game.
Args:
name (str) : Dealer name, defaults to dealer.
cash_balance (int) : Dealer's cash balance, defaults to 100
number_of_decks (int) : Number of decks to be created.
Attributes:
name (str) : Dealer name, defaults to dealer.
cash_balance (int) : Dealer's cash balance, defaults to 100
number_of_decks (int) : Number of decks to be created.
deck (Deck) : Deck object
hand (Hand) : Hand object
'''
def __init__(self, name='dealer', cash_balance=100, number_of_decks=1):
self.name = name
self.cash_balance = cash_balance
self.number_of_decks = number_of_decks
self.deck = Deck(self.number_of_decks)
self.hand = Hand()
def show_balance(self):
'''Show balance method
Show balance methods prints the dealer's name and cash balance.
'''
print(f'The {self.name} has {self.cash_balance} $ in the bank.')
def show_dealer_card_values(self):
'''Show player card values
Show player card values method
'''
print('Dealer cards: ')
print(self.hand)
print(f'Dealer hand value is {self.hand.get_card_value()}.')
def match_bet(self, bet_amount):
if self.cash_balance >= abs(bet_amount):
self.cash_balance -= abs(bet_amount)
return abs(bet_amount)
else:
print('The bank went bust.')
sys.exit()
def is_soft_17(self):
'''Is soft 17
Is soft 17 method checks if the dealer's hand is a soft 17 or no.
Returns:
(bool) : True if dealer cards value is 17, False if otherwise
'''
if (self.hand.get_card_value() < 17) and (len(self.hand) <= 3):
return True
else:
return False
@card_object_check
def return_cards_to_deck(self, discard_pot):
'''Return cards to deck
Method that returns collected round cards to deck.
Args:
discard_card (list) : List of card objects made of the player's and the dealer's respective hands.
'''
if type(discard_pot) == type([]):
self.deck.all_cards.extend(discard_pot)
else:
self.deck.all_cards.append(discard_pot)
def add_to_cash_balance(self, bet_amount):
'''Add to cash balance
Add to cash balance method add bet winnings to the Dealer's cash balance.
Args:
bet_amount (int) : winning bet amount
'''
self.cash_balance += abs(bet_amount)
class TestHand(unittest.TestCase):
def setUp(self):
self.hand = Hand()
(
self.card_1, self.card_2, self.card_3, self.card_4, self.card_5,
self.card_6, self.card_7
) = (
Card('Diamonds', 'Two'), Card('Spades', 'King'),
Card('Clubs', 'Ace'), Card('Spades',
'Queen'), 'this is not a card', 10, 9.5
)
def tearDown(self):
del self.hand
del self.card_1
del self.card_2
del self.card_3
del self.card_4
del self.card_5
del self.card_6
del self.card_7
def test_hand_add_new_card_adds_one_card(self):
self.hand.add_card(self.card_1)
self.assertEqual(
len(self.hand), 1,
'Add card is not working properly. It should contain one element.'
)
def test_hand_add_new_card_adds_two_or_more_cards(self):
self.hand.add_card([self.card_1, self.card_2, self.card_3])
self.assertGreaterEqual(
len(self.hand), 2,
'Add card is not working properly. It should contain two or more elements.'
)
def test_hand_one_card_added_is_list(self):
self.hand.add_card(self.card_1)
self.assertEqual(
type(self.hand.hand), list,
'Hand is not composed of list of cards. Check if the add_card method instantiate an empty list and that proper appending methods are implemented.'
)
def test_hand_two_or_more_card_hand_is_list(self):
self.hand.add_card([self.card_1, self.card_2, self.card_3])
self.assertEqual(
type(self.hand.hand), list,
'Hand is not composed of list of cards. Check if the add_card method instantiate an empty list and that proper appending methods are implemented.'
)
def test_hand_card_added_is_card_instance(self):
self.hand.add_card([self.card_1, self.card_2, self.card_3])
for elem in self.hand.hand:
self.assertIsInstance(
elem, Card,
'Hand does not contain Card objects. Check if you are adding card objects'
)
def test_hand_card_added_decorator_type_error_int(self):
self.assertRaises(TypeError, self.hand.add_card, self.card_5)
def test_hand_card_added_decorator_type_error_int(self):
self.assertRaises(TypeError, self.hand.add_card, self.card_6)
def test_hand_card_added_decorator_type_error_int(self):
self.assertRaises(TypeError, self.hand.add_card, self.card_7)
def test_hand_card_added_decorator_type_error_list_mixed_card_object_and_other_type(
self
):
self.assertRaises(
TypeError, self.hand.add_card,
[self.card_4, self.card_5, self.card_6]
)
def test_hand_card_added_decorator_type_error_list_other_type(self):
self.assertRaises(
TypeError, self.hand.add_card,
[self.card_5, self.card_6, self.card_7]
)
def test_hand_get_card_value_value_less_than_twenty_one(self):
self.hand.add_card([self.card_1, self.card_2])
self.assertLess(
self.hand.get_card_value(), 21,
'Hand value not less than 21. Get card value method is not calculating the hand value right.'
)
def test_hand_get_card_value_has_ace(self):
self.hand.add_card([self.card_2, self.card_3])
self.assertEqual(
self.hand.get_card_value(), 21,
'Hand value not 21. Get card value method is not calculating right.'
)
def test_hand_get_card_value_value_more_than_twenty_one(self):
self.hand.add_card([self.card_1, self.card_2, self.card_4])
self.assertGreater(
self.hand.get_card_value(), 21,
'Hand value is not greater than 21. Get card calue not calculating hand value right.'
)