def test_can_breathe(self):
tank = TestTank()
piranha_fish = simfish.PiranhaFish()
self.assertTrue(piranha_fish.alive)
self.assertEqual(simfish.PiranhaFish.ENERGY, piranha_fish.energy)
piranha_fish.turn(tank)
self.assertEqual(simfish.PiranhaFish.ENERGY - 1, piranha_fish.energy)
def test_will_not_eat_clockwork_fish(self):
tank = TestTank()
others = [simfish.ClockworkFish()]
tank.add_items_with(*others)
piranha_fish = simfish.PiranhaFish()
self.assertEqual(others, tank.items_with(piranha_fish))
piranha_fish.turn(tank)
self.assertEqual(others, tank.items_with(piranha_fish))
def test_will_eat_diver_fish(self):
tank = TestTank()
others = [simfish.DiverFish()]
tank.add_items_with(*others)
piranha_fish = simfish.PiranhaFish()
self.assertEqual(others, tank.items_with(piranha_fish))
piranha_fish.turn(tank)
self.assertEqual(0, len(tank.items_with(piranha_fish)))
def test_can_create(self):
piranha_fish = simfish.PiranhaFish()
self.assertTrue(piranha_fish.alive)
self.assertEqual(simfish.PiranhaFish.ENERGY, piranha_fish.energy)
self.assertEqual(3, len(piranha_fish.diet))
self.assertTrue(simfish.FishFood in piranha_fish.diet)
self.assertTrue(simfish.SunFish in piranha_fish.diet)
self.assertTrue(simfish.DiverFish in piranha_fish.diet)
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_can_die(self):
tank = TestTank()
piranha_fish = simfish.PiranhaFish()
self.assertTrue(piranha_fish.alive)
self.assertEqual(simfish.PiranhaFish.ENERGY, piranha_fish.energy)
for i in range(simfish.PiranhaFish.ENERGY):
piranha_fish.turn(tank)
self.assertEqual(0, piranha_fish.energy)
self.assertFalse(piranha_fish.alive)
def test_will_float_when_dead(self):
tank = TestTank()
piranha_fish = simfish.PiranhaFish()
for i in range(simfish.PiranhaFish.ENERGY):
piranha_fish.turn(tank)
self.assertFalse(piranha_fish.alive)
tank.reset_movement_record()
piranha_fish.turn(tank)
self.assertEqual(piranha_fish, tank.last_item_moved)
self.assertEqual(0, tank.total_dx)
self.assertEqual(-1, tank.total_dy)
def test_will_not_eat_other_creatures(self):
tank = TestTank()
others = [
simfish.Snail(),
simfish.SunFish(),
simfish.DiverFish(),
simfish.PiranhaFish(),
simfish.ClockworkFish(),
]
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))