[BugFix]Add MiniCPM-o 4.5 end-to-end test suite (offline, online serving) (#5237)

Signed-off-by: y_null <y_null@qq.com>
Signed-off-by: amy-why-3459 <wuhaiyan17@huawei.com>
Co-authored-by: amy-why-3459 <wuhaiyan17@huawei.com>
Co-authored-by: Hongsheng Liu <liuhongsheng4@huawei.com>

tests/dfx/reliability/invalid_param_test/test_invalid_minicpmo_4_5_omni.py

@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+"""Invalid audio format rejection on MiniCPM-o 4.5: ``POST /v1/chat/completions``."""
+
+import os
+
+os.environ.setdefault("VLLM_WORKER_MULTIPROC_METHOD", "spawn")
+
+import pytest
+
+from tests.helpers.mark import hardware_test
+from tests.helpers.runtime import OmniServerParams, OpenAIClientHandler, dummy_messages_from_mix_data
+from tests.helpers.stage_config import get_deploy_config_path
+
+pytestmark = [pytest.mark.slow, pytest.mark.omni, pytest.mark.full_model]
+
+_MINICPMO_DEPLOY = get_deploy_config_path("minicpmo_4_5_batching.yaml")
+
+_MINICPMO_SERVER = [
+    pytest.param(
+        OmniServerParams(
+            model="openbmb/MiniCPM-o-4_5",
+            stage_config_path=_MINICPMO_DEPLOY,
+            use_stage_cli=True,
+            server_args=[
+                "--trust-remote-code",
+                "--no-async-chunk",
+            ],
+        ),
+        id="minicpmo_4_5",
+    )
+]
+
+
+def _system_prompt() -> dict[str, object]:
+    return {
+        "role": "system",
+        "content": [
+            {
+                "type": "text",
+                "text": (
+                    "You are MiniCPM-o 4.5, a virtual human capable of perceiving "
+                    "auditory and visual inputs, as well as generating text and speech."
+                ),
+            }
+        ],
+    }
+
+
+def _prompt() -> str:
+    return "What is the capital of China? Answer in 20 words."
+
+
+@hardware_test(res={"cuda": "H100", "npu": "A2"}, num_cards=2)
+@pytest.mark.parametrize("omni_server", _MINICPMO_SERVER, indirect=True)
+def test_invalid_audio_format_rejected(omni_server: OmniServerParams, openai_client: OpenAIClientHandler) -> None:
+    """
+    Test that invalid audio format is properly rejected.
+    Deploy Setting: default 2GPU
+    Input Modal: text + invalid audio format
+    Output Modal: error
+    """
+    fake_base64 = "AAAA"  # not a real audio file
+
+    responses = openai_client.send_chat_completions_http_request(
+        {
+            "json": {
+                "model": omni_server.model,
+                "messages": dummy_messages_from_mix_data(
+                    system_prompt=_system_prompt(),
+                    audio_data_url=f"data:audio/invalid;base64,{fake_base64}",
+                    content_text=_prompt(),
+                ),
+                "stream": True,
+            },
+        },
+        err_code=400,
+        err_message="Invalid or unsupported audio file",
+    )
+    assert not responses[0].success