def test_death_z(self): # NOT WORKING
#
b = Herbivore(age=0, weight=10)
p = 0.4
N = 10
n = sum([(b.animal_dying() for _ in range(N))])
mean = N * p
var = N * p * (1 - p)
Z = (n - mean) / math.sqrt(var)
phi = 2 * stats.norm.cdf(-abs(Z))
assert phi > 0.01
def test_animal_dying(self, mocker):
carn = Carnivore(20, 0)
dead = carn.animal_dying()
assert dead is True
herb = Herbivore(5, 20)
mocker.patch('random.random', return_value=0.001)
dead = herb.animal_dying()
assert dead is True
carn = Carnivore(5, 20)
mocker.patch('random.random', return_value=0.9)
dead = carn.animal_dying()
assert dead is False
