def test_shuffle():
"""
Checks decks are shuffled and no longer equal
may fail VERY rarely, but shouldn't in my lifetime
"""
deck = fours.Deck()
deck2 = fours.Deck()
deck.shuffle()
deck2.shuffle()
assert_that(deck).is_not_equal_to(deck2)
def test_out():
"""
Checks that when out of cards it raises the correct exception
"""
deck = fours.Deck()
for _ in range(52):
deck.draw()
assert_that(deck.draw).raises(fours.OutOfCards).when_called_with()
def test_duplicates():
"""
check a deck of cards has no duplicates, even when converted to a string
"""
deck = fours.Deck()
assert_that(len(set(deck.cards))).is_equal_to(len(deck.cards))
assert_that(len({x.__repr__() for x in deck.cards}))\
.is_equal_to(len([x.__repr__() for x in deck.cards]))
def test_cards():
"""
Checks that there are 52 cards in a deck, each with a valid value and suit
"""
deck = fours.Deck()
for _ in range(52):
card = deck.draw()
assert_that(card.suit).is_in("Hearts", "Clubs", "Diamonds", "Spades")
assert_that(card.value).is_in(*range(13))
def test_draw():
"""
Tests that a non shuffled deck always gives the same board state
"""
not_shuffled = fours.Deck()
game = fours.Fours()
game.deck = not_shuffled
game.draw_card()
assert_that(game.board).is_equal_to([[fours.Card("Spades", 12)],
[fours.Card("Spades", 11)],
[fours.Card("Spades", 10)],
[fours.Card("Spades", 9)]])
def test_size():
"""
Checks a deck has 52 cards
"""
deck = fours.Deck()
assert_that(deck.cards).is_length(52)