def test_cards_creation():
for suit in ['heart', 'diamond', 'spade', 'club']:
for rank in range(2, 15):
card = Card(rank, suit)
assert rank == card.get_rank()
assert suit == card.get_suit()
def test_card_rank_setting():
card = Card(3, 'heart')
card.set_rank(2)
assert 2 == card.get_rank()
