def test_deferred_resolve_promise(self):
df = Deferred()
assert isinstance(df.promise, Promise)
with pytest.raises(TimeoutError):
df.promise.result(0.001)
df.resolve("Value")
assert df.promise.result(0.001) == "Value"
def test_deferred_reject_promise(self):
class MyException(Exception):
pass
df = Deferred()
with pytest.raises(TimeoutError):
df.promise.result(0.001)
df.reject(MyException())
with pytest.raises(MyException):
df.promise.result(0.001)
