Files
agentic-kvc/third_party/vllm/tests/plugins_tests/test_scheduler_plugins.py
Gahow Wang 445e491123 Add vLLM v0.18.1 source tree with KV transfer abort fix
third_party/vllm/ now tracked in git for direct patch management.
Based on vLLM v0.18.1 release with one patch applied:

  vllm/v1/core/sched/scheduler.py:
    Replace fatal assert with graceful skip when KV transfer callback
    arrives for an already-aborted request during PD disaggregated serving.

Future vLLM modifications should be made directly in third_party/vllm/
and committed normally. The patches/ directory is kept as documentation
of what changed from upstream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-05-22 00:30:38 +08:00

37 lines
1.2 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
import pytest
from vllm.engine.arg_utils import EngineArgs
from vllm.sampling_params import SamplingParams
from vllm.v1.core.sched.scheduler import Scheduler
from vllm.v1.engine.llm_engine import LLMEngine
class DummyV1Scheduler(Scheduler):
def schedule(self):
raise Exception("Exception raised by DummyV1Scheduler")
def test_scheduler_plugins_v1(monkeypatch: pytest.MonkeyPatch):
with monkeypatch.context() as m:
# Explicitly turn off engine multiprocessing so
# that the scheduler runs in this process
m.setenv("VLLM_ENABLE_V1_MULTIPROCESSING", "0")
with pytest.raises(Exception) as exception_info:
engine_args = EngineArgs(
model="facebook/opt-125m",
enforce_eager=True, # reduce test time
scheduler_cls=DummyV1Scheduler,
)
engine = LLMEngine.from_engine_args(engine_args=engine_args)
sampling_params = SamplingParams(max_tokens=1)
engine.add_request("0", "foo", sampling_params)
engine.step()
assert str(exception_info.value) == "Exception raised by DummyV1Scheduler"