def test_grow(self):
        lowland = Lowland()
        lowland.available_fodder = 3
        assert lowland.get_fodder() == 3

        lowland.fodder_regrow()
        assert lowland.get_fodder() == 800
 def test_init(self):
     lowland = Lowland()
     assert type(lowland.present_herbivores) is list
     assert type(lowland.present_carnivores) is list
     assert lowland.get_fodder() == 800