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vllm-project--vllm/tests/lora/test_layers_utils.py
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chore: import upstream snapshot with attribution
2026-07-13 12:55:37 +08:00

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Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
import pytest
import torch
from torch import nn
from vllm.lora.layers.utils import _get_lora_device
pytestmark = pytest.mark.skip_global_cleanup
def _param() -> nn.Parameter:
return nn.Parameter(torch.empty(1), requires_grad=False)
def test_get_lora_device_unquantized():
base_layer = nn.Module()
base_layer.weight = _param()
assert _get_lora_device(base_layer) == base_layer.weight.device
def test_get_lora_device_gptq_awq():
base_layer = nn.Module()
base_layer.qweight = _param()
assert _get_lora_device(base_layer) == base_layer.qweight.device
def test_get_lora_device_ark_linear():
base_layer = nn.Module()
base_layer.ark_linear = nn.Module()
base_layer.ark_linear.qweight = _param()
assert _get_lora_device(base_layer) == base_layer.ark_linear.qweight.device
def test_get_lora_device_unsupported_raises():
base_layer = nn.Module()
with pytest.raises(ValueError, match="Unsupported base layer"):
_get_lora_device(base_layer)