litellm/tests/test_litellm_rust/responses/test_streaming.py
yujonglee 0fc11653e2
test(rust-bridge): pin Messages and Responses callback contracts on the native path (#46443)
* test(rust-bridge): pin Messages and Responses callback contracts on the native path

Each test runs the native route and asserts what the Python path does today, so a
known gap is a strict xfail that names its reason and the exception it fails with
Messages and Responses share one Surface and hook recorder in support/callbacks.py,
and each surface folder lists its own expected counts and gaps.

Body-level hooks from the function body (pre-request hook, websearch short-circuit,
Messages interceptors, planned and legacy agentic loops, streaming deployment hook)
are xfail until native runs them

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* test(rust-bridge): give every route folder the same one-concern-per-file layout

Route data, the route Surface and the server fixture move into each route folder, and support/ keeps only
route-neutral helpers. test_inference.py splits into chat_completions/ and responses/, ocr/test_requests.py
splits into requests, failures and settings, and Messages and Responses get streaming and body hook files.
Messages request tests that duplicate inference-messages request.rs are removed, and drop_params read
from litellm.drop_params is now covered

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* test(rust-bridge): expect the required-route decline error for unsupported Responses requests

Co-Authored-By: Yujong Lee <yujong@berri.ai>

* test(rust-bridge): import route data from the route folders in the secrets unit tests

Co-Authored-By: Yujong Lee <yujong@berri.ai>

* test(rust-bridge): import NoReturn in the OCR dispatch tests

Co-Authored-By: Yujong Lee <yujong@berri.ai>

* test(rust-bridge): move route-neutral helpers out of support/callbacks.py

Co-Authored-By: Yujong Lee <yujong@berri.ai>

* test(rust-bridge): cover deployment rejection and concurrent callbacks

* test(rust-bridge): assert native serving via the x-litellm-rust marker in the route folder tests

Co-Authored-By: Yujong Lee <yujong@berri.ai>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-10-14 17:07:20 -07:00

58 lines
2.3 KiB
Python

from collections.abc import AsyncIterator, Iterator
from typing import Final
import pytest
from tests.test_litellm_rust.responses.data import RESPONSES_EVENTS, RESPONSES_RESPONSE, STREAMING, call
from tests.test_litellm_rust.support.callback_recorder import RecordingLogger, drain_logging
from tests.test_litellm_rust.support.recording_server import RecordingServer, ResponseSpec, relaxed
from tests.test_litellm_rust.support.results import consume, response_id
from tests.test_litellm_rust.support.routing import assert_served_natively
pytestmark = pytest.mark.requires_rust_extension
STREAM: Final = ResponseSpec(body=None, events=RESPONSES_EVENTS)
@pytest.fixture
def server(server: RecordingServer) -> Iterator[RecordingServer]:
yield from relaxed(server)
@pytest.mark.asyncio
@STREAMING
async def test_stream_relays_provider_events_and_logs_success_once_after_the_last_chunk(
server: RecordingServer,
) -> None:
server.enqueue(STREAM)
recorder: Final = RecordingLogger()
stream: Final = await call(server, stream=True, callbacks=[recorder])
assert isinstance(stream, AsyncIterator)
first: Final = await anext(stream)
await drain_logging()
assert "async_log_success_event" not in recorder.names
rest: Final = [chunk async for chunk in stream]
assert_served_natively(server)
assert [getattr(chunk, "type", None) for chunk in (first, *rest)] == [event for event, _ in RESPONSES_EVENTS]
success: Final = await recorder.wait_for_async("async_log_success_event")
assert len(success) == 1
assert isinstance(success[0].kwargs, dict)
assert success[0].kwargs["completion_start_time"] is not None
assert response_id(success[0].response) == RESPONSES_RESPONSE["id"]
assert "log_failure_event" not in recorder.names
@pytest.mark.asyncio
@STREAMING
async def test_sync_stream_relays_provider_events_and_logs_success_once(server: RecordingServer) -> None:
server.enqueue(STREAM)
recorder: Final = RecordingLogger()
stream: Final = await call(server, asynchronous=False, stream=True, callbacks=[recorder])
chunks: Final = await consume(stream)
assert_served_natively(server)
assert [getattr(chunk, "type", None) for chunk in chunks] == [event for event, _ in RESPONSES_EVENTS]
assert len(await recorder.wait_for_async("log_success_event")) == 1