def test_givenMonsterWantsToMoveIntoAnOccupiedPosition_whenPlayingTurn_thenMonsterDoesntMove(
self):
monster = NormalMonster(SOME_POSITION, SOME_ENERGY, RANGE_OF_MOTION,
MONSTER_NAME)
self.monsters_mock.move.side_effect = PositionAlreadyOccupied
monster.play_turn(self.monsters_mock, WorldElements(set()))
self.monsters_mock.move.assert_called_once()
def test_givenMonsterDoesntHaveEnoughEnergyToMove_whenPlayingTurn_thenMonsterDies(
self):
monster = NormalMonster(SOME_POSITION, SOME_ENERGY, RANGE_OF_MOTION,
MONSTER_NAME)
self.monsters_mock.move.side_effect = NotEnoughEnergyToMove
monster.play_turn(self.monsters_mock, WorldElements(set()))
self.monsters_mock.remove.assert_called_once_with(monster)
def test_givenNoFoodsSurroundingMonster_whenPlayingTurn_thenMonsterMovesAnyWhere(
self):
monster = NormalMonster(SOME_POSITION, SOME_ENERGY, RANGE_OF_MOTION,
MONSTER_NAME)
monster.play_turn(self.monsters_mock, WorldElements(set()))
self.monsters_mock.move.assert_called_once_with(
monster, Not(Position(0, 0)), SOME_ENERGY)
def test_givenFoodSurroundingMonster_whenPlayingTurn_thenMonsterMoveTowardFood(
self):
food = Food(SOME_POSITION + DELTA_POSITION_WITHIN_RANGE, SOME_ENERGY)
monster = NormalMonster(SOME_POSITION, SOME_ENERGY, RANGE_OF_MOTION,
MONSTER_NAME)
monster.play_turn(self.monsters_mock, WorldElements({food}))
expected_movement = food.delta_position_from(monster.position)
self.monsters_mock.move.assert_called_once_with(
monster, expected_movement, SOME_ENERGY)
def test_givenMonsterDoesntHaveChanceToReproduce_whenPlayingTurn_thenMonsterDoesntReproduces(
self, generate_fraction):
generate_fraction.return_value = 2 * SOME_REPRODUCTION_PROBABILITY
enough_energy_to_reproduce = Energy(10 - 1)
monster = NormalMonster(
SOME_POSITION,
enough_energy_to_reproduce,
RANGE_OF_MOTION,
MONSTER_NAME,
SOME_REPRODUCTION_PROBABILITY,
)
monster.play_turn(self.monsters_mock, WorldElements(set()))
self.monsters_mock.add.assert_not_called()
def test_givenNoFoodsAtMonsterPosition_whenPlayingTurn_thenMonsterDoesnGainEnergy(
self, generate_fraction):
generate_fraction.return_value = 2 * SOME_REPRODUCTION_PROBABILITY
food = Food(SOME_POSITION + SOME_POSITION, SOME_ENERGY)
monster_energy = Energy(SOME_ENERGY_VALUE)
monster = NormalMonster(
SOME_POSITION,
monster_energy,
RANGE_OF_MOTION,
MONSTER_NAME,
SOME_REPRODUCTION_PROBABILITY,
)
monster.play_turn(self.monsters_mock, WorldElements({food}))
expected_energy = Energy(SOME_ENERGY_VALUE)
self.assertEqual(expected_energy, monster_energy)