[BugFix] Fix ValueError in NewRequestData repr methods (#29392)

Signed-off-by: maang <maang_h@163.com>

tests/v1/core/test_output.py

+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+import torch
+
+from vllm.v1.core.sched.output import NewRequestData
+
+
+def _create_new_requests_data(prompt_embeds: torch.Tensor | None) -> NewRequestData:
+    return NewRequestData(
+        req_id="test_req",
+        prompt_token_ids=None,
+        mm_features=[],
+        sampling_params=None,
+        pooling_params=None,
+        block_ids=([],),
+        num_computed_tokens=0,
+        lora_request=None,
+        prompt_embeds=prompt_embeds,
+    )
+
+
+def test_repr_with_none() -> None:
+    """Test repr when prompt_embeds is None."""
+    new_requests_data = _create_new_requests_data(None)
+
+    assert "prompt_embeds_shape=None" in repr(new_requests_data)
+    assert "prompt_embeds_shape=None" in new_requests_data.anon_repr()
+
+
+def test_repr_with_multi_element_tensor() -> None:
+    """Test repr when prompt_embeds is a multi-element tensor."""
+    prompt_embeds = torch.randn(10, 768)
+    new_requests_data = _create_new_requests_data(prompt_embeds)
+
+    assert "prompt_embeds_shape=torch.Size([10, 768])" in repr(new_requests_data)
+    assert "prompt_embeds_shape=torch.Size([10, 768])" in new_requests_data.anon_repr()

vllm/v1/core/sched/output.py

@@ -68,7 +68,9 @@ class NewRequestData:
         )
 
     def __repr__(self) -> str:
-        prompt_embeds_shape = self.prompt_embeds.shape if self.prompt_embeds else None
+        prompt_embeds_shape = (
+            self.prompt_embeds.shape if self.prompt_embeds is not None else None
+        )
         return (
             f"NewRequestData("
             f"req_id={self.req_id},"
@@ -88,7 +90,9 @@ class NewRequestData:
         prompt_token_ids_len = (
             len(self.prompt_token_ids) if self.prompt_token_ids is not None else None
         )
-        prompt_embeds_shape = self.prompt_embeds.shape if self.prompt_embeds else None
+        prompt_embeds_shape = (
+            self.prompt_embeds.shape if self.prompt_embeds is not None else None
+        )
         return (
             f"NewRequestData("
             f"req_id={self.req_id},"