[Bugfix] Fix Qwen3-VL-Reranker load. (#33298)

Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io>
Signed-off-by: wang.yuqi <noooop@126.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
(cherry picked from commit abb34ac43a)

tests/entrypoints/pooling/score/test_online_score_vision.py

@@ -0,0 +1,122 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import pytest
+import requests
+
+from tests.utils import VLLM_PATH, RemoteOpenAIServer
+from vllm.entrypoints.pooling.score.protocol import ScoreResponse
+from vllm.multimodal.utils import encode_image_url, fetch_image
+
+MODEL_NAME = "Qwen/Qwen3-VL-Reranker-2B"
+HF_OVERRIDES = {
+    "architectures": ["Qwen3VLForSequenceClassification"],
+    "classifier_from_token": ["no", "yes"],
+    "is_original_qwen3_reranker": True,
+}
+
+query = "A cat standing in the snow."
+image_url = "https://vllm-public-assets.s3.us-west-2.amazonaws.com/multimodal_asset/cat_snow.jpg"
+documents = [
+    {
+        "type": "text",
+        "text": query,
+    },
+    {
+        "type": "image_url",
+        "image_url": {"url": image_url},
+    },
+    {
+        "type": "image_url",
+        "image_url": {"url": encode_image_url(fetch_image(image_url))},
+    },
+]
+
+
+@pytest.fixture(scope="module")
+def server():
+    args = [
+        "--enforce-eager",
+        "--max-model-len",
+        "8192",
+        "--chat-template",
+        str(VLLM_PATH / "examples/pooling/score/template/qwen3_vl_reranker.jinja"),
+    ]
+
+    with RemoteOpenAIServer(
+        MODEL_NAME, args, override_hf_configs=HF_OVERRIDES
+    ) as remote_server:
+        yield remote_server
+
+
+def test_score_api_queries_str_documents_str(server: RemoteOpenAIServer):
+    queries = "What is the capital of France?"
+    documents = "The capital of France is Paris."
+
+    score_response = requests.post(
+        server.url_for("score"),
+        json={
+            "model": MODEL_NAME,
+            "queries": queries,
+            "documents": documents,
+        },
+    )
+    score_response.raise_for_status()
+    score = ScoreResponse.model_validate(score_response.json())
+
+    assert score.id is not None
+    assert score.data is not None
+    assert len(score.data) == 1
+
+
+def test_score_api_queries_str_documents_text_content(server: RemoteOpenAIServer):
+    score_response = requests.post(
+        server.url_for("score"),
+        json={
+            "model": MODEL_NAME,
+            "queries": query,
+            "documents": {"content": [documents[0]]},
+        },
+    )
+    score_response.raise_for_status()
+    score = ScoreResponse.model_validate(score_response.json())
+
+    assert score.id is not None
+    assert score.data is not None
+    assert len(score.data) == 1
+
+
+def test_score_api_queries_str_documents_image_url_content(server: RemoteOpenAIServer):
+    score_response = requests.post(
+        server.url_for("score"),
+        json={
+            "model": MODEL_NAME,
+            "queries": query,
+            "documents": {"content": [documents[1]]},
+        },
+    )
+    score_response.raise_for_status()
+    score = ScoreResponse.model_validate(score_response.json())
+
+    assert score.id is not None
+    assert score.data is not None
+    assert len(score.data) == 1
+
+
+def test_score_api_queries_str_documents_image_base64_content(
+    server: RemoteOpenAIServer,
+):
+    score_response = requests.post(
+        server.url_for("score"),
+        json={
+            "model": MODEL_NAME,
+            "queries": query,
+            "documents": {"content": [documents[2]]},
+        },
+    )
+    score_response.raise_for_status()
+    score = ScoreResponse.model_validate(score_response.json())
+
+    assert score.id is not None
+    assert score.data is not None
+    assert len(score.data) == 1