fix: Fix failed functional tests https://github.com/meta-llama/llama-stack-evals (#8266)

python/sglang/srt/entrypoints/openai/serving_chat.py

@@ -55,6 +55,20 @@ class OpenAIServingChat(OpenAIServingBase):
     def _request_id_prefix(self) -> str:
         return "chatcmpl-"
 
+    def _validate_request(self, request: ChatCompletionRequest) -> Optional[str]:
+        """Validate that the input is valid."""
+        if not request.messages:
+            return "Messages cannot be empty."
+
+        if (
+            isinstance(request.tool_choice, str)
+            and request.tool_choice.lower() == "required"
+            and not request.tools
+        ):
+            return "Tools cannot be empty if tool choice is set to required."
+
+        return None
+
     def _convert_to_internal_request(
         self,
         request: ChatCompletionRequest,

python/sglang/srt/utils.py

@@ -744,9 +744,13 @@ def load_image(
         image = Image.open(BytesIO(image_file))
     elif image_file.startswith("http://") or image_file.startswith("https://"):
         timeout = int(os.getenv("REQUEST_TIMEOUT", "3"))
-        response = requests.get(image_file, stream=True, timeout=timeout).raw
-        image = Image.open(response)
-        response.close()
+        response = requests.get(image_file, stream=True, timeout=timeout)
+        try:
+            response.raise_for_status()
+            image = Image.open(response.raw)
+            image.load()  # Force loading to avoid issues after closing the stream
+        finally:
+            response.close()
     elif image_file.lower().endswith(("png", "jpg", "jpeg", "webp", "gif")):
         image = Image.open(image_file)
     elif image_file.startswith("data:"):