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%
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