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# Copyright 2025 the LlamaFactory team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import pytest
from llamafactory.v1.config import ModelArguments, SampleArguments
from llamafactory.v1.core.model_engine import ModelEngine
from llamafactory.v1.samplers.cli_sampler import SyncSampler
@pytest.mark.runs_on(["cuda", "npu"])
def test_sync_sampler():
model_args = ModelArguments(model="Qwen/Qwen3-4B-Instruct-2507", template="qwen3_nothink")
sample_args = SampleArguments()
model_engine = ModelEngine(model_args)
sampler = SyncSampler(sample_args, model_args, model_engine.model, model_engine.renderer)
messages = [{"role": "user", "content": [{"type": "text", "value": "Say 'This is a test.'"}]}]
response = ""
for new_text in sampler.generate(messages):
response += new_text
print(response)
assert model_engine.renderer.parse_message(response) == {
"role": "assistant",
"content": [{"type": "text", "value": "This is a test."}],
}
if __name__ == "__main__":
"""
python tests_v1/sampler/test_cli_sampler.py
"""
test_sync_sampler()
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