def test_meat_for_carnivores(self):
jungle = Jungle()
jungle.add_animals([{
'species': 'Herbivore',
'age': 10,
'weight': 100
}])
assert type(jungle.meat_for_carnivores) is float or \
type(jungle.meat_for_carnivores) is int
assert jungle.meat_for_carnivores == 100
def test_die(self, jungle_many_animals, carnivore_list):
num_animals = jungle_many_animals.num_animals
jungle_many_animals.die()
assert num_animals > jungle_many_animals.num_animals
jungle = Jungle()
jungle.add_animals(carnivore_list)
carnivore0 = jungle.carnivores[0]
carnivore0._fitness = 0
carnivore0._compute_fitness = False
carnivore1 = jungle.carnivores[1]
carnivore1._fitness = 1
carnivore1._compute_fitness = False
jungle.die()
assert carnivore0 not in jungle.carnivores
assert carnivore1 in jungle.carnivores
def test_add_animals(self, animal_list):
jungle = Jungle()
jungle.add_animals(animal_list)
assert jungle.num_herbivores == 2
assert jungle.num_carnivores == 1
assert jungle.num_animals == len(animal_list)
herbivore0 = jungle.herbivores[0]
herbivore1 = jungle.herbivores[1]
carnivore0 = jungle.carnivores[0]
assert herbivore0.age == animal_list[0]['age']
assert herbivore0.weight == animal_list[0]['weight']
assert herbivore1.age == animal_list[1]['age']
assert herbivore1.weight == animal_list[1]['weight']
assert carnivore0.age == animal_list[2]['age']
assert carnivore0.weight == animal_list[2]['weight']
animal_list_with_wrong_parameter = [{
'species': 'Carnivore',
'age': 0.5,
'weight': 100
}]
with pytest.raises(ValueError):
jungle.add_animals(animal_list_with_wrong_parameter)
animal_list_with_wrong_parameter = [{
'species': 'Carnivore',
'age': 3,
'weight': -10
}]
with pytest.raises(ValueError):
jungle.add_animals(animal_list_with_wrong_parameter)
