[CI] Split pooling from entrypoints Test (#24632)

Signed-off-by: wang.yuqi <noooop@126.com>

tests/entrypoints/pooling/openai/test_embedding_dimensions.py

@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+"""
+Run `pytest tests/entrypoints/openai/test_embedding_dimensions.py`.
+"""
+
+from typing import Optional
+
+import openai
+import pytest
+
+from tests.conftest import HfRunner
+from tests.models.language.pooling.embed_utils import (
+    run_embedding_correctness_test)
+from tests.models.utils import EmbedModelInfo
+from tests.utils import RemoteOpenAIServer
+from vllm.entrypoints.openai.protocol import EmbeddingResponse
+
+MODELS = [
+    EmbedModelInfo("intfloat/multilingual-e5-small", is_matryoshka=False),
+    EmbedModelInfo("Snowflake/snowflake-arctic-embed-m-v1.5",
+                   is_matryoshka=True,
+                   matryoshka_dimensions=[256]),
+]
+
+input_texts = [
+    "The chef prepared a delicious meal.",
+]
+
+
+@pytest.fixture(scope="module", params=MODELS)
+def model_info(request):
+    return request.param
+
+
+@pytest.fixture(scope="module", params=["bfloat16"])
+def dtype(request):
+    return request.param
+
+
+@pytest.fixture(scope="module")
+def server(model_info, dtype: str):
+    args = [
+        "--runner",
+        "pooling",
+        # use half precision for speed and memory savings in CI environment
+        "--dtype",
+        dtype,
+        "--enforce-eager",
+        "--max-model-len",
+        "512"
+    ]
+
+    if model_info.name == "Snowflake/snowflake-arctic-embed-m-v1.5":
+        # Manually enable Matryoshka Embeddings
+        args.extend([
+            "--trust_remote_code", "--hf_overrides",
+            '{"matryoshka_dimensions":[256]}'
+        ])
+
+    with RemoteOpenAIServer(model_info.name, args) as remote_server:
+        yield remote_server
+
+
+@pytest.fixture(scope="module")
+def hf_model(hf_runner, model_info, dtype: str):
+    with hf_runner(model_info.name, dtype=dtype,
+                   is_sentence_transformer=True) as hf_model:
+        yield hf_model
+
+
+@pytest.mark.asyncio
+async def test_matryoshka(model_info: EmbedModelInfo,
+                          server: RemoteOpenAIServer, hf_model: HfRunner):
+    client = server.get_async_client()
+
+    async def make_request_and_correctness_test(dimensions):
+        prompts = input_texts * 3
+
+        embedding_response = await client.embeddings.create(
+            model=model_info.name,
+            input=prompts,
+            dimensions=dimensions,
+            encoding_format="float",
+        )
+        embeddings = EmbeddingResponse.model_validate(
+            embedding_response.model_dump(mode="json"))
+
+        assert embeddings.id is not None
+        assert len(embeddings.data) == 3
+        assert len(embeddings.data[0].embedding) > 0
+        assert embeddings.usage.completion_tokens == 0
+        assert embeddings.usage.prompt_tokens > 0
+        assert embeddings.usage.total_tokens > 0
+
+        if dimensions is not None:
+            assert len(embeddings.data[0].embedding) == dimensions
+
+        vllm_outputs = [d.embedding for d in embeddings.data]
+        run_embedding_correctness_test(hf_model, prompts, vllm_outputs,
+                                       dimensions)
+
+    if model_info.is_matryoshka:
+        valid_dimensions: list[Optional[int]] = [None]
+        if model_info.matryoshka_dimensions is not None:
+            valid_dimensions += model_info.matryoshka_dimensions[:2]
+
+        for dimensions in valid_dimensions:
+            await make_request_and_correctness_test(dimensions)
+
+        invalid_dimensions: list[Optional[int]] = [-1]
+        if model_info.matryoshka_dimensions is not None:
+            assert 5 not in model_info.matryoshka_dimensions
+            invalid_dimensions.append(5)
+
+        for dimensions in invalid_dimensions:
+            with pytest.raises(openai.BadRequestError):
+                await make_request_and_correctness_test(dimensions)
+
+    else:
+        for dimensions in [None]:
+            await make_request_and_correctness_test(dimensions)
+
+        for dimensions in [-1, 16]:
+            with pytest.raises(openai.BadRequestError):
+                await make_request_and_correctness_test(dimensions)