Files
vllm-omni/tests/dreamzero/test_pipeline_state.py
T

56 lines
1.9 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
from collections import OrderedDict
import pytest
from vllm_omni.diffusion.models.dreamzero.pipeline_dreamzero import DreamZeroPipeline
from vllm_omni.diffusion.models.dreamzero.state_dreamzero import DreamZeroState
pytestmark = [pytest.mark.core_model, pytest.mark.cpu]
def _empty_pipeline() -> DreamZeroPipeline:
pipeline = DreamZeroPipeline.__new__(DreamZeroPipeline)
pipeline._states = OrderedDict()
pipeline._max_session_states = 2
return pipeline
def test_dreamzero_pipeline_state_is_session_keyed() -> None:
pipeline = _empty_pipeline()
session_a = pipeline._get_or_create_state("session-a")
session_b = pipeline._get_or_create_state("session-b")
session_a.call_count = 7
session_b.call_count = 3
assert pipeline._get_or_create_state("session-a") is session_a
assert pipeline._get_or_create_state("session-b") is session_b
assert session_a.call_count == 7
assert session_b.call_count == 3
def test_dreamzero_pipeline_state_lru_caps_retained_sessions() -> None:
pipeline = _empty_pipeline()
session_a = pipeline._get_or_create_state("session-a")
pipeline._get_or_create_state("session-b")
assert pipeline._get_or_create_state("session-a") is session_a
pipeline._get_or_create_state("session-c")
assert list(pipeline._states) == ["session-a", "session-c"]
assert "session-b" not in pipeline._states
def test_dreamzero_state_owns_no_kv_caches() -> None:
"""KV (self- and cross-attention) is engine-owned since the AR-Diffusion
paged backend: the model-local cache accessors must be gone so nothing can
silently bypass the engine pool."""
state = DreamZeroState()
for removed in ("get_kv_caches", "create_kv_caches", "update_kv_cache", "get_crossattn_caches"):
assert not hasattr(state, removed)