def test_it_digests_oldest_eaten_thing(self):
carnivore = Carnivore()
carnivore.eat(1)
carnivore.eat(2)
carnivore.eat(3)
carnivore.digest()
carnivore.stomach |should| equal_to([2, 3])
carnivore.digest()
carnivore.stomach |should| equal_to([3])
carnivore.eat(4)
carnivore.digest()
carnivore.stomach |should| equal_to([4])
def it_ignores_digestion_at_an_empty_stomach(self):
carnivore = Carnivore()
carnivore.stomach |should| be_empty
carnivore.digest()
carnivore.stomach |should| be_empty
