[CI]Add model basic accuracy test(Qwen2-1.5B-Instruct)

Signed-off-by: hfadzxy <starmoon_zhang@163.com>

Author: zhangxinyuehfad

mypy.ini

@@ -9,3 +9,5 @@ ignore_missing_imports = True
 [mypy-transformers.*]
 ignore_missing_imports = True
 
+[mypy-lm_eval.*]
+ignore_missing_imports = True

requirements-dev.txt

@@ -2,3 +2,5 @@
 modelscope
 pytest >= 6.0
 pytest-asyncio
+lm-eval
+ray

tests/entrypoints/test_accuracy.py

@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
+# This file is a part of the vllm-ascend project.
+# Adapted from vllm-project/blob/main/tests/entrypoints/llm/test_accuracy.py
+# Copyright 2023 The vLLM 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 gc
+import multiprocessing
+import os
+from multiprocessing import Queue
+
+import lm_eval
+import pytest
+import torch
+
+# pre-trained model path on Hugging Face.
+MODEL_NAME = "Qwen/Qwen2-0.5B-Instruct"
+# Math reasoning benchmark (Grade School Math 8K).
+TASK = "gsm8k"
+# Answer validation requiring format consistency.
+FILTER = "exact_match,strict-match"
+# 3% relative tolerance for numerical accuracy.
+RTOL = 0.03
+# Baseline accuracy after VLLM optimization.
+EXPECTED_VALUE = 0.37
+
+
+def run_test(queue, more_args=None):
+    model_args = f"pretrained={MODEL_NAME},max_model_len=4096"
+    if more_args is not None:
+        model_args = f"{model_args},{more_args}"
+    results = lm_eval.simple_evaluate(
+        model="vllm",
+        model_args=model_args,
+        tasks=TASK,
+        batch_size="auto",
+    )
+    result = results["results"][TASK][FILTER]
+    print("result:", result)
+    queue.put(result)
+    del results
+    torch.npu.empty_cache()
+    gc.collect()
+    return
+
+
+@pytest.mark.skipif(
+    os.getenv('VLLM_USE_V1') == '1',
+    reason="V1 engine is fully supported in 0.8.X release, skipping this test."
+)
+def test_lm_eval_accuracy(monkeypatch: pytest.MonkeyPatch):
+    with monkeypatch.context():
+        result_queue: Queue[float] = multiprocessing.Queue()
+        p = multiprocessing.Process(target=run_test, args=(result_queue, ))
+        p.start()
+        p.join()
+        result = result_queue.get()
+        assert (EXPECTED_VALUE - RTOL < result < EXPECTED_VALUE + RTOL), \
+            f"Expected: {EXPECTED_VALUE}±{RTOL} | Measured: {result}"