vllm/tests/config/test_multimodal_config.py
Roger Wang c3a2c6ac5f
[MM][Core] Decouple ViT backend from LM backend (#27061)
Signed-off-by: Roger Wang <hey@rogerw.io>
2025-10-21 00:30:10 -07:00

26 lines
817 B
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
import pytest
from vllm.attention.backends.registry import _Backend
from vllm.config.multimodal import MultiModalConfig
def test_mm_encoder_attn_backend_str_conversion():
config = MultiModalConfig(mm_encoder_attn_backend="FLASH_ATTN")
assert config.mm_encoder_attn_backend == _Backend.FLASH_ATTN
def test_mm_encoder_attn_backend_invalid():
with pytest.raises(ValueError):
MultiModalConfig(mm_encoder_attn_backend="not_a_backend")
def test_mm_encoder_attn_backend_hash_updates():
base_hash = MultiModalConfig().compute_hash()
overridden_hash = MultiModalConfig(
mm_encoder_attn_backend=_Backend.FLASH_ATTN
).compute_hash()
assert base_hash != overridden_hash