def test_false_when_prob_of_killing_is_zero(self, example_properties):
"""
Asserts that kill method returns False when prob_kill is zero.
"""
herbivore = Herbivore(example_properties)
carnivore = Carnivore(example_properties)
herbivore.find_fitness()
carnivore.fitness = 0.5
assert carnivore.kill(herbivore) is False
def test_true_when_prob__of_killing_is_one(self, teardown_carnivore_tests,
example_properties):
"""
Asserts that kill method returns True when prob_kill is one.
"""
herbivore = Herbivore(example_properties)
carnivore = Carnivore(example_properties)
herbivore.find_fitness()
carnivore.find_fitness()
carnivore.params["DeltaPhiMax"] = 0.1
assert carnivore.kill(herbivore) is True
