Add OOT platform E2E test case to be run in the vllm buildkite pipeline (#3154)

### What this PR does / why we need it?
Add OOT platform E2E test case to be run in the vllm buildkite pipeline.
Note: added test case is not run in vllm-ascend CI.

### Does this PR introduce _any_ user-facing change?
NA

- vLLM version: v0.10.2
- vLLM main:
f225ea7dd9

Signed-off-by: leo-pony <nengjunma@outlook.com>

tests/e2e/vllm_interface/singlecard/test_sampler.py

@@ -0,0 +1,36 @@
+#
+# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
+# This file is a part of the vllm-ascend project.
+# Adapted from vllm/tests/entrypoints/llm/test_guided_generate.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.
+#
+from vllm import SamplingParams
+
+from tests.e2e.conftest import VllmRunner
+
+
+def test_models_topk() -> None:
+    example_prompts = [
+        "The capital of France is",
+    ]
+    sampling_params = SamplingParams(max_tokens=10,
+                                     temperature=0.0,
+                                     top_k=10,
+                                     top_p=0.9)
+
+    with VllmRunner("Qwen/Qwen3-0.6B",
+                    max_model_len=4096,
+                    gpu_memory_utilization=0.7) as runner:
+        runner.generate(example_prompts, sampling_params)

tests/e2e/vllm_interface/vllm_test.cfg

@@ -0,0 +1,2 @@
+# Base docker image used to build the vllm-ascend e2e test image, which is built in the vLLM repository
+BASE_IMAGE_NAME="quay.io/ascend/cann:8.3.rc1.alpha002-910b-ubuntu22.04-py3.11"