def test_receive_request_with_same_owner_should_do_nothing(
self, fork: Fork, philosopher: Philosopher):
fork._owner = philosopher
fork.request(philosopher)
assert fork._owner == philosopher
def test_receive_request_from_some_neighbor_with_dirty_state_should_clean_it_and_change_owner( # noqa
self, fork: Fork, philosopher: Philosopher):
another_fork = Fork(1)
another_philosopher = Philosopher(1, (fork, another_fork))
fork._owner = another_philosopher
fork.request(philosopher)
assert fork.state == ForkState.CLEAN
assert fork._owner == philosopher
def test_receive_request_from_some_neighbor_with_clean_state_should_wait_until_the_owner_is_done( # noqa
self, fork: Fork, philosopher: Philosopher):
another_fork = Fork(1)
another_philosopher = Philosopher(1, (fork, another_fork))
fork.state = ForkState.CLEAN
fork._owner = another_philosopher
with mock.patch(
'dining_philosophers.forks.Condition.wait') as mock_wait:
fork.request(philosopher)
assert mock_wait.called