def test_death_occurs_if_fitness_is_0(self):
"""Test to show that animal will die if fitness is 0
"""
loc = (2, 7)
i = Island()
h_sim = Herbivore(i, loc, weight=0)
c_sim = Carnivore(i, loc, weight=0)
assert h_sim.death()
assert c_sim.death()
def test_death_does_not_occur_if_prob_is_0(self, mocker):
"""Test to show that death will not occur if we mock the probability to
highest return value
"""
mocker.patch('random.random', return_value=1)
loc = (2, 7)
i_sim = Island()
h_sim = Herbivore(i_sim, loc)
c_sim = Carnivore(i_sim, loc)
assert not h_sim.death()
assert not c_sim.death()
def test_death_occurs_if_prob_is_1(self, mocker):
"""Test to show that death will occur if we mock the probability to
lowest return value
"""
mocker.patch('random.random', return_value=0)
loc = (2, 7)
i_sim = Island()
h_sim = Herbivore(i_sim, loc)
c_sim = Carnivore(i_sim, loc)
assert h_sim.death()
assert c_sim.death()