def test_get_fodder_on_loc(self):
"""Tests if get fodder on loc method retrieves fodder attribute of cell on location.
"""
i = Island()
j_loc = (2, 7)
fodder_on_loc = i.island_dict[j_loc].fodder
assert i.get_fodder_on_loc(j_loc) == fodder_on_loc
class TestAnimals:
@pytest.fixture(autouse=True)
def setup(self):
spes_geogr_1 = """\
OOOO
OOJO
OOOO"""
self.spes_geogr_2 = """\
OOOO
OJJO
OOOO"""
self.spes_island = Island(spes_geogr_1)
self.i = Island()
self.loc = (0, 0)
stnd_herb = Herbivore(island=self.i, loc=self.loc)
stnd_carn = Carnivore(island=self.i, loc=self.loc)
self.stnd_a_list = [stnd_herb, stnd_carn]
self.herb_w_0 = Herbivore(island=self.i, loc=self.loc, weight=0)
self.herb_w_5 = Herbivore(island=self.i, loc=self.loc, weight=5)
self.herb_w_200 = Herbivore(island=self.i, loc=self.loc, weight=200)
self.carn_w_0 = Carnivore(island=self.i, loc=self.loc, weight=0)
self.carn_w_5 = Carnivore(island=self.i, loc=self.loc, weight=5)
self.carn_w_7 = Carnivore(island=self.i, loc=self.loc, weight=7)
self.a_list_w_0 = [self.herb_w_0, self.carn_w_0]
self.a_list_w_5 = [self.herb_w_5, self.carn_w_5]
def test_get_params_herb(self):
"""Manual test on collecting parameter key/value for Herbivore
"""
assert Herbivore.parameters["beta"] == 0.9
assert Herbivore.parameters["a_half"] == 40.0
assert Herbivore.parameters["lambda"] == 1.0
assert Herbivore.parameters["F"] == 10.0
def test_get_params_carn(self):
"""Manual test on collecting parameter key/value for Carnivore
"""
assert Carnivore.parameters["beta"] == 0.75
assert Carnivore.parameters["a_half"] == 60.0
assert Carnivore.parameters["lambda"] == 1.0
assert Carnivore.parameters["F"] == 50.0
def test_aging(self):
"""Test if the age of all animals increase by
1 for each time method is called
"""
for a in self.stnd_a_list:
a.aging()
assert a.age == 1
a.age = 0
for _ in range(5):
a.aging()
assert a.age == 5
def test_get_loc_returns_loc(self):
"""Test get_loc returns location
"""
for a in self.stnd_a_list:
assert a.get_loc() == self.loc
def test_get_fitness_returns_fitness(self):
"""Test get_fitness returns fitness
"""
for a in self.a_list_w_0:
assert a.get_fitness() == 0
assert self.herb_w_5.get_fitness() == pytest.approx(0.377, 0.01)
assert self.carn_w_5.get_fitness() == pytest.approx(0.598, 0.01)
def test_param_changer_changes(self):
"""Test param_changer changes the parameter list
"""
i = Island()
loc = (1, 1)
s = Herbivore(i, loc)
old_param = s.parameters["F"]
s.param_changer({"F": 20})
new_param = s.parameters["F"]
assert old_param != new_param
s.param_changer({"F": 10})
def test_fitness_change_for_set_weight(self):
"""Manual test for fitness_change on set weight
"""
self.herb_w_5.fitness_change()
self.herb_w_200.fitness_change()
self.carn_w_5.fitness_change()
self.carn_w_7.fitness_change()
self.herb_w_0.fitness_change()
self.carn_w_0.fitness_change()
assert self.herb_w_5.fitness == pytest.approx(0.377, 0.01)
assert self.herb_w_200.fitness == pytest.approx(0.998, 0.01)
assert self.carn_w_5.fitness == pytest.approx(0.598, 0.01)
assert self.carn_w_7.fitness == pytest.approx(0.768, 0.01)
assert self.herb_w_0.fitness == 0
assert self.carn_w_0.fitness == 0
def test_weight_gain(self):
"""Test weight_gains according to formula
"""
fodder_eaten = Herbivore.parameters["F"]
beta = Herbivore.parameters["beta"]
self.herb_w_5.weight_gain(fodder_eaten)
assert self.herb_w_5.weight == 5 + (fodder_eaten * beta)
def test_feed_changes_fitness(self):
"""Test feed changes fitness
"""
loc = (2, 1)
i = Island()
i_sim = Herbivore(i, loc)
start_fitness = i_sim.fitness
i_sim.feed()
changed_fitness = i_sim.fitness
assert start_fitness != changed_fitness
def test_can_birth_occur_with_1_herbivore(self):
"""Test to see that birth will not occur for only 1 animal
"""
loc = (2, 7)
i_sim = Island()
a_sim = Herbivore(i_sim, loc)
i_sim.add_pop_on_loc(loc, a_sim)
assert not a_sim.can_birth_occur()
def test_can_birth_occur_with_2_herbivores_with_1_prob(self, mocker):
"""Test to show that 2 herbivores will give birth if the probability
is mocked to the lowest possible value.
"""
mocker.patch('random.random', return_value=0)
loc = (2, 7)
i_sim = Island()
a_sim = Herbivore(i_sim, loc, weight=100)
for _ in range(2):
i_sim.add_pop_on_loc(loc, a_sim)
assert a_sim.can_birth_occur()
def test_can_birth_occur_with_2_carnivores_with_1_prob(self, mocker):
"""Test to show that 2 carnivores will give birth if the probability
is mocked to the lowest possible value.
"""
mocker.patch('random.random', return_value=0)
loc = (2, 7)
i_sim = Island()
a_sim = Carnivore(i_sim, loc, weight=100)
for _ in range(2):
i_sim.add_pop_on_loc(loc, a_sim)
assert a_sim.can_birth_occur()
def test_can_birth_occur_with_2_herbivores_with_0_prob(self, mocker):
"""Test to show that 2 herbivores will not give birth if the
probability is mocked to highest possible value.
"""
mocker.patch('random.random', return_value=1)
loc = (2, 7)
i_sim = Island()
a_sim = Herbivore(i_sim, loc, weight=100)
for _ in range(2):
i_sim.add_pop_on_loc(loc, a_sim)
assert not a_sim.can_birth_occur()
def test_birth_adds_to_num_herb_on_loc(self, mocker):
"""Test to show that birth method adds new pop to herb_pop list
when birth occurs
"""
mocker.patch('random.random', return_value=0)
loc = (2, 7)
i_sim = Island()
a_sim_1 = Herbivore(i_sim, loc, weight=100)
a_sim_2 = Herbivore(i_sim, loc, weight=100)
a_sim_1.birth()
assert i_sim.get_num_herb_on_loc(loc) == 3
def test_birth_adds_to_num_carn_on_loc(self, mocker):
"""Test to show that birth method adds new pop to carn_pop list
when birth occurs
"""
mocker.patch('random.random', return_value=0)
loc = (2, 7)
i_sim = Island()
a_sim_1 = Carnivore(i_sim, loc, weight=100)
a_sim_2 = Carnivore(i_sim, loc, weight=100)
a_sim_1.birth()
assert i_sim.get_num_carn_on_loc(loc) == 3
def test_birth_does_not_happen_if_prob_0(self, mocker):
"""Test to show that birth method does not add new pop if
birth does not occur
"""
mocker.patch('random.random', return_value=1)
loc = (2, 7)
i_sim = Island()
a_sim_1 = Herbivore(i_sim, loc, weight=100)
a_sim_2 = Herbivore(i_sim, loc, weight=100)
a_sim_1.birth()
assert i_sim.get_num_herb_on_loc(loc) == 2
@patch.object(Herbivore, 'can_birth_occur')
def test_birth_does_not_add_new_baby_if_weight_too_low(self, mocker):
"""Test to show that if birth weight is too low, a new baby will not
be born"""
a_sim_1 = Herbivore(self.i, self.loc, weight=1)
mocker.return_value = True
a_sim_2 = Herbivore(self.i, self.loc, weight=1)
old_pop = a_sim_1.get_num_same_species(self.loc)
a_sim_1.birth()
new_pop = a_sim_1.get_num_same_species(self.loc)
assert old_pop == new_pop
def test_annual_weight_loss_decreases_weight(self):
"""Test to show that annual_weight_loss decreases the
weight of the animal
"""
loc = (2, 7)
i = Island()
a_sim = Herbivore(i, loc)
initial_weight = a_sim.weight
a_sim.annual_weight_loss()
new_weight = a_sim.weight
assert initial_weight > new_weight
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_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()
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_will_move_does_not_happen_if_prob_0(self, mocker):
"""Test to show that move will not happen if we mock the probability
to highest value
"""
mocker.patch('random.random', return_value=1)
a_sim = Herbivore(self.i, self.loc)
assert not a_sim.will_move()
def test_will_move_happens_if_prob_1(self, mocker):
"""Test to show that move will happen if we mock the probability
to lowest value
"""
mocker.patch('random.random', return_value=0)
a_sim = Herbivore(self.i, self.loc)
assert a_sim.will_move()
def test_get_relevant_fodder_herb(self):
"""Test to show that get_relevant_fodder returns fodder for herb
"""
jungle_loc = (2, 7)
a = Herbivore(self.i, jungle_loc)
fodder = self.i.get_fodder_on_loc(jungle_loc)
assert a.get_relevant_fodder(jungle_loc) == fodder
def test_get_relevant_fodder_carn(self):
"""Test to show that get_relevant_fodder returns fodder for carn,
which is equal to the herb_weight
"""
i = Island()
c = Carnivore(i, self.loc)
herb_weight = 50
h = Herbivore(i, self.loc, weight=herb_weight)
assert c.get_relevant_fodder(self.loc) == herb_weight
def test_get_num_same_species_herb(self):
"""Test to show that get_num_same_species
return is number of same species(herb)
"""
i = Island()
h_1 = Herbivore(i, self.loc)
h_2 = Herbivore(i, self.loc)
assert h_1.get_num_same_species(self.loc) == 2
def test_get_num_same_species_carn(self):
"""Test to show that get_num_same_species
return is number of same species(carn)
"""
i = Island()
h_1 = Carnivore(i, self.loc)
h_2 = Carnivore(i, self.loc)
assert h_1.get_num_same_species(self.loc) == 2
def test_relative_abundance_gives_output_herb(self):
"""Test to show that relative_abundance returns output for herb
"""
i = Island()
jungle_loc = (2, 7)
h = Herbivore(i, jungle_loc)
self_calculated_abundance = 40
assert h.relative_abundance(jungle_loc) == self_calculated_abundance
def test_relative_abundance_gives_output_carn(self):
"""Test to show that relative_abundance returns output for herb
"""
i = Island()
jungle_loc = (2, 7)
h = Herbivore(i, jungle_loc, weight=50)
c = Carnivore(i, jungle_loc)
self_calculated_abundance = 0.5
assert c.relative_abundance(jungle_loc) == self_calculated_abundance
def test_propensity_0_if_mountain_or_ocean(self):
"""Test to show that propensity returns 0 if cell_type is mountain
or ocean
"""
ocean_loc = (0, 0)
mountain_loc = (1, 9)
i = Island()
h = Herbivore(i, mountain_loc)
assert h.propensity(ocean_loc) == 0
assert h.propensity(mountain_loc) == 0
def test_propensity_return_value_desert(self):
"""Test to show that propensity returns a value based on a formula
when placed in desert
"""
i = Island()
des_loc = (5, 9)
h = Herbivore(i, des_loc)
assert h.propensity(des_loc) == 1
def test_get_potential_coordinates_gives_neighbour_coord(self):
"""Test to show that get_potential_coordinates returns the
neighbouring coordinates
"""
loc = (2, 2)
neighbour_coord = [(3, 2), (1, 2), (2, 3), (2, 1)]
h = Herbivore(self.i, loc)
assert h.get_potential_coordinates() == neighbour_coord
def test_total_propensity_surrounded_by_desert(self):
"""Test to show that total_propensity returns value based on
formula when surrounded by desert
"""
loc = (6, 9)
h = Herbivore(self.i, loc)
loc_list = h.get_potential_coordinates()
assert h.total_propensity(loc_list) == 4
def test_probabilities_returns_none_surrounded_by_ocean(self):
"""Test to show probabilities returns none when surrounded by ocean
"""
loc = (1, 2)
h = Herbivore(self.spes_island, loc)
loc_list = h.get_potential_coordinates()
assert h.probabilities(loc_list) is None
def test_probabilities_returns_prob_list(self):
"""Test to show that probabilities returns probability_list based
on formula
"""
i = Island()
loc = (3, 7)
c = Carnivore(i, loc)
loc_list = c.get_potential_coordinates()
prob_list = [0.25, 0.25, 0.25, 0.25]
assert c.probabilities(loc_list) == prob_list
def test_destination_is_none_surrounded_by_ocean(self):
"""Test to show that destination is none while surrounded
by ocean
"""
loc = (1, 2)
h = Herbivore(self.spes_island, loc)
loc_list = h.get_potential_coordinates()
assert h.destination(loc_list) is None
@patch.object(Herbivore, 'probabilities')
def test_destination_gives_coordinate(self, mocker):
"""Test to show that destination returns destination when mocked
to a probability of 100% at different indexes
"""
mocker.return_value = [1, 0, 0, 0]
i = Island()
loc = (2, 8)
h = Herbivore(i, loc)
loc_list = h.get_potential_coordinates()
assert h.destination(loc_list) == loc_list[0]
mocker.return_value = [0, 1, 0, 0]
assert h.destination(loc_list) == loc_list[1]
@patch.object(Herbivore, 'will_move')
def test_migration_removes_pop_from_loc_and_adds_to_odder(self, mocker):
"""Test to show that migration removes population from initial
loc to the chosen destination when the mocked value for will_move
is set to True
"""
mocker.return_value = True
loc_with_one_place_to_move = (1, 1)
i = Island(self.spes_geogr_2)
h = Herbivore(i, loc_with_one_place_to_move)
old_loc = h.get_loc()
h.migrate()
new_loc = h.get_loc()
assert i.get_num_herb_on_loc(old_loc) == 0
assert i.get_num_herb_on_loc(new_loc) == 1
assert old_loc != new_loc
@patch.object(Herbivore, 'destination')
@patch.object(Herbivore, 'will_move')
def test_migration_does_not_happen_if_destination_none(
self, mocker_1, mocker_2):
"""Test to show that migration does not happen if destination is none.
destination() is mocked to None, and will_move() is mocked to True.
"""
mocker_1.return_value = None
mocker_2.return_value = True
i = Island()
loc = (2, 7)
h = Herbivore(i, loc)
old_loc = h.get_loc()
h.migrate()
new_loc = h.get_loc()
assert old_loc == new_loc #SJEKK GJENNOM HVORFOR DU IKKE FÅR 100%
