memgraph/tests/e2e/streams/transformations/transform.py
János Benjamin Antal 13c9bf76af Add e2e tests for streams (#190)
* Add base of e2e tests

* Add python dependencies

* Explicitly close customer in destructor

* Parametrize tests and add test for CHECK STREAM

* Add tests for SHOW STREAMS

* Add test for concurrent start/stop during check

* Add test for calling check with an already started stream

* Run streams e2e tests on CI servers

Co-authored-by: antonio2368 <antonio2368@users.noreply.github.com>
Co-authored-by: Jure Bajic <jbajic@users.noreply.github.com>
2021-07-07 16:19:59 +02:00

38 lines
1.2 KiB
Python

import mgp
@mgp.transformation
def simple(context: mgp.TransCtx,
messages: mgp.Messages
) -> mgp.Record(query=str, parameters=mgp.Map):
result_queries = []
for i in range(0, messages.total_messages()):
message = messages.message_at(i)
payload_as_str = message.payload().decode("utf-8")
result_queries.append(mgp.Record(
query=f"CREATE (n:MESSAGE {{timestamp: '{message.timestamp()}', payload: '{payload_as_str}', topic: '{message.topic_name()}'}})",
parameters=None))
return result_queries
@mgp.transformation
def with_parameters(context: mgp.TransCtx,
messages: mgp.Messages
) -> mgp.Record(query=str, parameters=mgp.Map):
result_queries = []
for i in range(0, messages.total_messages()):
message = messages.message_at(i)
payload_as_str = message.payload().decode("utf-8")
result_queries.append(mgp.Record(
query="CREATE (n:MESSAGE {timestamp: $timestamp, payload: $payload, topic: $topic})",
parameters={"timestamp": message.timestamp(),
"payload": payload_as_str,
"topic": message.topic_name()}))
return result_queries