def test_move_and_eat_no_food(self):
     world = [[CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY], ]
     food_level = [[0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0]]
     test_world = World(6, 0)
     test_world.grid = world
     test_world.food_level = food_level
     test_creature = Creature([0, 1], 0)
     test_creature.set_hunger_level(1)
     test_creature.move_and_eat(test_world, [0, 0])
     creature_hunger = test_creature.get_hunger_level()
     creature_location = test_creature.get_location()
     food_level = test_world.get_food_level(0, 0)
     self.assertEqual(1, creature_hunger, "If there's no food at the destination, move_and_eat method does not change the hunger level of the creature.")
     self.assertEqual([0, 1], creature_location, "If there's no food at the destination, move_and_eat method does not change the location of the creature.")
     self.assertEqual(0, food_level, "If there's not food at the destination, get_food_level(destination) should return 0.")
 def test_move_and_eat_not_hungry(self):
     world = [[CELL_FOOD, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY], ]
     food_level = [[1, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0]]
     test_world = World(6, 1)
     test_world.grid = world
     test_world.food_level = food_level
     test_creature = Creature([0, 1], 0)
     test_creature.set_hunger_level(0)
     test_creature.move_and_eat(test_world, [0, 0])
     creature_hunger = test_creature.get_hunger_level()
     creature_location = test_creature.get_location()
     food_level = test_world.get_food_level(0, 0)
     self.assertEqual(0, creature_hunger, "The creature (hunger level:0) moves and eats a food. Then its hunger level stays 0.")
     self.assertEqual([0, 1], creature_location, "If not hungry, after move_and_eat(world,[0,0]) executed, the creature should stay at [0,1].")
     self.assertEqual(1, food_level, "If not hungry, the creature does not move and eat the food. Thus the food level stays same (1).")
 def test_move_and_eat_hungry(self):
     world = [[CELL_FOOD, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY],
              [CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY], ]
     food_level = [[1, '', '', '', '', ''],
                   ['', '', '', '', '', ''],
                   ['', '', '', '', '', ''],
                   ['', '', '', '', '', ''],
                   ['', '', '', '', '', ''],
                   ['', '', '', '', '', '']]
     test_world = World(6, 1)
     test_world.grid = world
     test_world.food_level = food_level
     test_creature = Creature([0, 1], 0)
     test_creature.set_hunger_level(1)
     test_creature.move_and_eat(test_world, [0, 0])
     creature_hunger = test_creature.get_hunger_level()
     creature_location = test_creature.get_location()
     food_level = test_world.get_food_level(0, 0)
     self.assertEqual(0, creature_hunger, "The creature (hunger level:1) moves and eats a food. Then its hunger level becomes 0.")
     self.assertEqual([0, 0], creature_location, "After move_and_eat(world,[0,0]) executed, the creature should be at [0,0].")
     self.assertEqual(FOOD_DEFAULT, food_level, "After move_and_eat(world,[0,0]) executed, the food at [0,0]'s level becomes the default value.")
 def test_move_and_eat_not_hungry(self):
     world = [
         [
             CELL_FOOD, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
     ]
     food_level = [[1, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0,
                                        0], [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0]]
     test_world = World(6, 1)
     test_world.grid = world
     test_world.food_level = food_level
     test_creature = Creature([0, 1], 0)
     test_creature.set_hunger_level(0)
     test_creature.move_and_eat(test_world, [0, 0])
     creature_hunger = test_creature.get_hunger_level()
     creature_location = test_creature.get_location()
     food_level = test_world.get_food_level(0, 0)
     self.assertEqual(
         0, creature_hunger,
         "The creature (hunger level:0) moves and eats a food. Then its hunger level stays 0."
     )
     self.assertEqual(
         [0, 1], creature_location,
         "If not hungry, after move_and_eat(world,[0,0]) executed, the creature should stay at [0,1]."
     )
     self.assertEqual(
         1, food_level,
         "If not hungry, the creature does not move and eat the food. Thus the food level stays same (1)."
     )
 def test_move_and_eat_no_food(self):
     world = [
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
     ]
     food_level = [[0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0,
                                        0], [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0],
                   [0, 0, 0, 0, 0, 0]]
     test_world = World(6, 0)
     test_world.grid = world
     test_world.food_level = food_level
     test_creature = Creature([0, 1], 0)
     test_creature.set_hunger_level(1)
     test_creature.move_and_eat(test_world, [0, 0])
     creature_hunger = test_creature.get_hunger_level()
     creature_location = test_creature.get_location()
     food_level = test_world.get_food_level(0, 0)
     self.assertEqual(
         1, creature_hunger,
         "If there's no food at the destination, move_and_eat method does not change the hunger level of the creature."
     )
     self.assertEqual(
         [0, 1], creature_location,
         "If there's no food at the destination, move_and_eat method does not change the location of the creature."
     )
     self.assertEqual(
         0, food_level,
         "If there's not food at the destination, get_food_level(destination) should return 0."
     )
 def test_move_and_eat_hungry(self):
     world = [
         [
             CELL_FOOD, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
         [
             CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY, CELL_EMPTY,
             CELL_EMPTY
         ],
     ]
     food_level = [[1, '', '', '', '', ''], ['', '', '', '', '', ''],
                   ['', '', '', '', '', ''], ['', '', '', '', '', ''],
                   ['', '', '', '', '', ''], ['', '', '', '', '', '']]
     test_world = World(6, 1)
     test_world.grid = world
     test_world.food_level = food_level
     test_creature = Creature([0, 1], 0)
     test_creature.set_hunger_level(1)
     test_creature.move_and_eat(test_world, [0, 0])
     creature_hunger = test_creature.get_hunger_level()
     creature_location = test_creature.get_location()
     food_level = test_world.get_food_level(0, 0)
     self.assertEqual(
         0, creature_hunger,
         "The creature (hunger level:1) moves and eats a food. Then its hunger level becomes 0."
     )
     self.assertEqual(
         [0, 0], creature_location,
         "After move_and_eat(world,[0,0]) executed, the creature should be at [0,0]."
     )
     self.assertEqual(
         FOOD_DEFAULT, food_level,
         "After move_and_eat(world,[0,0]) executed, the food at [0,0]'s level becomes the default value."
     )