def test_it():
futures = [tasklets.Future() for _ in range(3)]
def make_callback(index, result):
def callback():
futures[index].set_result(result)
return callback
_eventloop.add_idle(make_callback(0, 42))
_eventloop.add_idle(make_callback(1, 43))
_eventloop.add_idle(make_callback(2, 44))
tasklets.wait_all(futures)
assert futures[0].done()
assert futures[0].result() == 42
assert futures[1].done()
assert futures[1].result() == 43
assert futures[2].done()
assert futures[2].result() == 44
def test_it_no_futures():
assert tasklets.wait_all(()) is None
