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