def test_shuffled_deck_has_52_cards(self):
'''
After shuffling, a deck should have 52 cards.
'''
deck = sg_deck.Deck()
deck.shuffle()
assert(len(deck.deck) == 52)
def test_deck_is_empty_false_on_deck_with_cards(self):
'''
is_empty() should return True while there are cards left to be dealt
'''
deck = sg_deck.Deck()
for _ in range(52):
assert(deck.is_empty() is False)
deck.deal_card()
def test_each_item_dealt_is_card_on_init(self):
'''
A deck should be made up of Card objects
'''
card_obj = sg_deck.card.Card
deck = sg_deck.Deck()
for _ in range(52):
card = deck.deal_card()
assert(isinstance(card, card_obj))
def test_deck_is_empty_after_52_cards_dealt(self):
'''
is_empty() should return True after all cards are dealth
'''
deck = sg_deck.Deck()
for _ in range(52):
deck.deal_card()
assert(deck.is_empty())
def test_card_has_correct_attributes_on_init(self):
'''
A deck should have valid cards with name, rank, and suit on init.
'''
deck = sg_deck.Deck()
while not deck.is_empty():
card = deck.deal_card()
assert(hasattr(card, 'name'))
assert(hasattr(card, 'rank'))
assert(hasattr(card, 'suit'))
def test_get_53rd_card_fails(self):
'''
Dealing more than 52 cards should fail.
'''
deck = sg_deck.Deck()
with pytest.raises(IndexError):
# deal 52 cards
for _ in range(52):
deck.deal_card()
# fail at 53rd card
deck.deal_card()
def test_can_deal_52_cards(self):
'''
A total of 52 cards can be dealt from a card.
'''
deal_cnt = 0
deck = sg_deck.Deck()
while not deck.is_empty():
deck.deal_card()
deal_cnt += 1
assert(deal_cnt == 52)
def test_deal_card_reduces_deck_cnt(self):
'''
Dealing a card reduces the number of cards in the deck.
'''
deck_len = 52
deck = sg_deck.Deck()
while not deck.is_empty():
assert(len(deck.deck) == deck_len)
deck.deal_card()
deck_len -= 1
assert(len(deck.deck) == deck_len)
def test_card_name_matches_rank_and_suit(self):
'''
The name of a card should include its rank and suit.
'''
deck = sg_deck.Deck()
while not deck.is_empty():
card = deck.deal_card()
rank_and_suit = f"{card.rank} of {card.suit}"
assert(card.name == rank_and_suit)
deck.shuffle()
while not deck.is_empty():
card = deck.deal_card()
rank_and_suit = f"{card.rank} of {card.suit}"
assert(card.name == rank_and_suit)
def test_init_deck_deals_all_poker_cards(self):
'''
Ensures that all the 52 possible Poker cards are dealt.
Note there are no Jokers.
'''
card_set = set()
for card in CARDS:
card_set.add(card)
deck = sg_deck.Deck()
while not deck.is_empty():
card = deck.deal_card()
assert(card.name in card_set)
card_set.remove(card.name)
assert(len(card_set) == 0)
def test_shuffled_fixes_modified_card_objects(self):
'''
If a user attempts to change the state of a Card object,
this change should not carry over when the deck is reshuffled.
'''
deck = sg_deck.Deck()
some_string = "I wrote on this card"
while not deck.is_empty():
card = deck.deal_card()
card.name = some_string
deck.shuffle()
while not deck.is_empty():
card = deck.deal_card()
assert(card.name != some_string)
def test_shuffled_deck_deals_all_poker_cards(self):
'''
After shuffling, this ensures that all the 52 possible Poker cards are dealt.
'''
card_set = set()
for card in CARDS:
card_set.add(card)
deck = sg_deck.Deck()
deck.shuffle()
while not deck.is_empty():
card = deck.deal_card()
assert(card.name in card_set)
card_set.remove(card.name)
assert(len(card_set) == 0)
def test_card_attributes_are_strings(self):
'''
The three attributes of a deck should be strings on init nad shuffle.
'''
deck = sg_deck.Deck()
while not deck.is_empty():
card = deck.deal_card()
assert(isinstance(card.name, str))
assert(isinstance(card.rank, str))
assert(isinstance(card.suit, str))
deck.shuffle()
while not deck.is_empty():
card = deck.deal_card()
assert(isinstance(card.name, str))
assert(isinstance(card.rank, str))
assert(isinstance(card.suit, str))
def test_init_deck_has_52_cards(self):
'''
On intialization, a deck should have 52 cards.
'''
deck = sg_deck.Deck()
assert(len(deck.deck) == 52)
