def test_task_runner_validates_cached_state_inputs_with_upstream_handlers_if_task_has_caching(
self, client):
class MyResult(Result):
def read(self, *args, **kwargs):
new = self.copy()
new.value = 1337
return new
@prefect.task(
cache_for=datetime.timedelta(minutes=1),
cache_validator=all_inputs,
result=PrefectResult(),
)
def cached_task(x):
return 42
dull_state = Cached(
cached_result_expiration=datetime.datetime.utcnow() +
datetime.timedelta(minutes=2),
result=PrefectResult(location="-1"),
)
state = Cached(
cached_result_expiration=datetime.datetime.utcnow() +
datetime.timedelta(minutes=2),
result=PrefectResult(location="99"),
cached_inputs={"x": PrefectResult(location="2")},
)
client.get_latest_cached_states = MagicMock(
return_value=[dull_state, state])
res = CloudTaskRunner(task=cached_task).check_task_is_cached(
Pending(), inputs={"x": MyResult(value=2)})
assert client.get_latest_cached_states.called
assert res.is_pending()
def test_task_runner_validates_cached_state_inputs_with_upstream_handlers_if_task_has_caching(
client, ):
class Handler(ResultHandler):
def read(self, val):
return 1337
@prefect.task(
cache_for=datetime.timedelta(minutes=1),
cache_validator=all_inputs,
result_handler=JSONResultHandler(),
)
def cached_task(x):
return 42
dull_state = Cached(
cached_result_expiration=datetime.datetime.utcnow() +
datetime.timedelta(minutes=2),
result=SafeResult("-1", JSONResultHandler()),
)
state = Cached(
cached_result_expiration=datetime.datetime.utcnow() +
datetime.timedelta(minutes=2),
result=SafeResult("99", JSONResultHandler()),
cached_inputs={
"x": SafeResult("2", result_handler=JSONResultHandler())
},
)
client.get_latest_cached_states = MagicMock(
return_value=[dull_state, state])
res = CloudTaskRunner(task=cached_task).check_task_is_cached(
Pending(), inputs={"x": Result(2, result_handler=Handler())})
assert client.get_latest_cached_states.called
assert res.is_pending()
