def test_promise_thread():
def run(resolve, _):
sleep(0.25)
resolve(3)
run = Mock(wraps=run)
p = Promise(run, T.THREAD)
assert p._state == S.PENDING
assert p._value is None
assert p._timeout is None
assert p._thread is not None
sleep(0.05)
run.assert_called_once_with(p._resolve, p._reject)
run.reset_mock()
assert not p._event.is_set()
assert not p.wait(0.05)
assert run.call_count == 0
assert p._state == S.PENDING
assert p._value is None
assert p._timeout is None
assert p._thread is not None
assert not p._event.is_set()
assert p.wait()
assert run.call_count == 0
assert p._state == S.RESOLVED
assert p._value == 3
assert p._thread is None
assert p._event.is_set()
assert p.wait()
def test_promise_immediate():
run = Mock(wraps=lambda resolve, reject: resolve(2))
p = Promise(run, ptype=T.IMMEDIATE)
run.assert_called_once_with(p._resolve, p._reject)
assert p._state == S.RESOLVED
assert p._value == 2
assert p._event.is_set()
assert p.wait()
def test_promise_default():
run = Mock(wraps=lambda resolve, reject: resolve(2))
p = Promise(run)
assert p._state == S.PENDING
assert p._value is None
assert p._timeout is None
assert p._thread is None
assert run.call_count == 0
assert not p._event.is_set()
assert p.wait()
run.assert_called_once_with(p._resolve, p._reject)
assert p._state == S.RESOLVED
assert p._value == 2
assert p._event.is_set()
run.reset_mock()
assert p.wait()
assert run.call_count == 0