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vllm-omni/tests/engine/duplex/test_session_runner_ephemeral_bind.py
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# SPDX-License-Identifier: Apache-2.0
"""Ephemeral Stage0 bind uses r.stage0-turn{N}, not resumable r.stage0."""
from __future__ import annotations
from vllm_omni.engine.duplex.contracts import (
DuplexFence,
duplex_ephemeral_stage_request_id,
duplex_resource_request_id,
)
from vllm_omni.engine.duplex.session.manager import DuplexSessionManager
def test_stage0_request_id_ephemeral_when_not_resumable() -> None:
fence = DuplexFence("duplex-test", epoch=0, turn_id=3)
rid = DuplexSessionManager.stage_request_id(fence, stage_id=0, resumable=False)
expected = duplex_ephemeral_stage_request_id(fence, stage_id=0)
assert rid == expected
assert rid.endswith(".r.stage0-turn3")
assert not rid.endswith(".r.stage0")
def test_stage0_request_id_resumable_keeps_stable_role() -> None:
fence = DuplexFence("duplex-test", epoch=1, turn_id=3)
rid = DuplexSessionManager.stage_request_id(fence, stage_id=0, resumable=True)
expected = duplex_resource_request_id(fence, "stage0")
assert rid == expected
assert rid.endswith(".r.stage0")