def test_will_sink(self):
tank = TestTank()
fish_food = simfish.FishFood()
fish_food.turn(tank)
self.assertEqual(fish_food, tank.last_item_moved)
self.assertEqual(0, tank.total_dx)
self.assertEqual(1, tank.total_dy)
def test_will_not_eat_fish_food(self):
tank = TestTank()
others = [simfish.FishFood()]
tank.add_items_with(*others)
clockwork_fish = simfish.ClockworkFish()
self.assertEqual(others, tank.items_with(clockwork_fish))
clockwork_fish.turn(tank)
self.assertEqual(others, tank.items_with(clockwork_fish))
def test_will_eat_fish_food(self):
tank = TestTank()
others = [simfish.FishFood()]
tank.add_items_with(*others)
diver_fish = simfish.DiverFish()
self.assertEqual(others, tank.items_with(diver_fish))
diver_fish.turn(tank)
self.assertEqual(0, len(tank.items_with(diver_fish)))
def test_will_eat_fish_food(self):
tank = TestTank()
others = [simfish.FishFood()]
tank.add_items_with(*others)
snail = simfish.Snail()
self.assertEqual(others, tank.items_with(snail))
snail.turn(tank)
self.assertEqual(0, len(tank.items_with(snail)))
def test_will_only_eat_one_item_per_turn(self):
tank = TestTank()
others = [simfish.FishFood(), simfish.SunFish(), simfish.DiverFish()]
tank.add_items_with(*others)
piranha_fish = simfish.PiranhaFish()
for count in range(len(others), 0, -1):
self.assertEqual(count, len(tank.items_with(piranha_fish)))
piranha_fish.turn(tank)
self.assertEqual(0, len(tank.items_with(piranha_fish)))
def test_will_only_eat_one_fish_food_per_turn(self):
FOOD_COUNT = 10
tank = TestTank()
others = [simfish.FishFood()] * FOOD_COUNT
tank.add_items_with(*others)
diver_fish = simfish.DiverFish()
for count in range(FOOD_COUNT, 0, -1):
self.assertEqual(count, len(tank.items_with(diver_fish)))
diver_fish.turn(tank)
self.assertEqual(0, len(tank.items_with(diver_fish)))
def test_can_adjust_energy(self):
fish_food = simfish.FishFood(energy=42)
self.assertEqual(42, fish_food.energy)
def test_has_correct_default_energy(self):
fish_food = simfish.FishFood()
self.assertEqual(10, fish_food.energy)
def test_can_create(self):
fish_food = simfish.FishFood()
