litellm/tests/integration/_support/provider.py
mateo-berri 52de3b0a29 test(integration): add the support helpers the backported count_tokens wire tests import
Hand-ported to stable/1.104.x from main (bedrock_runtime_peer, provider, _cache_control_marks_support verbatim, graceful_stop_seconds at the line's 30s stop wait).
2026-10-19 12:35:32 -07:00

49 lines
1.8 KiB
Python

"""The fake provider shared by every integration test that takes the `provider` fixture.
Deployments in `proxy_config.yaml` point at `PROVIDER_URL`, so one server answers for all of them. A test
queues the replies it expects with `expect` and reads what the proxy sent with `received`. Tests run one at a
time against it; the `provider` fixture checks nothing is left over between tests.
The proxy's model-info refresh is answered here.
"""
from __future__ import annotations
import os
from collections import deque
from collections.abc import Iterator
from contextlib import contextmanager
from dataclasses import dataclass, field
from typing import Final
from tests.integration._support.wire import Reply, Request, Wire, wire_server
PROVIDER_PORT: Final = int(os.environ.get("INTEGRATION_PROVIDER_PORT", "8191"))
PROVIDER_URL: Final = f"http://127.0.0.1:{PROVIDER_PORT}"
MODEL_DISCOVERY: Final = ("GET", "/v1/models")
_UNQUEUED: Final = Reply(status=500, body=b'{"error": "the shared fake provider has no reply queued for this request"}')
@dataclass(slots=True)
class SharedProvider:
wire: Wire
replies: deque[Reply]
last_test: str | None = field(default=None)
def expect(self, *replies: Reply) -> None:
self.replies.extend(replies)
def received(self) -> tuple[Request, ...]:
return tuple(request for request in self.wire.drain() if (request.method, request.target) != MODEL_DISCOVERY)
@contextmanager
def shared_provider() -> Iterator[SharedProvider]:
replies: Final[deque[Reply]] = deque()
def respond(request: Request) -> Reply:
if (request.method, request.target) == MODEL_DISCOVERY:
return Reply(body=b'{"object":"list","data":[]}')
return replies.popleft() if replies else _UNQUEUED
with wire_server(respond, port=PROVIDER_PORT) as wire:
yield SharedProvider(wire, replies)