test(deepseek): pin tool result image carrier placement before a following turn

tests/unit/llms/deepseek/chat/test_deepseek_chat_transformation.py

@@ -182,6 +182,20 @@ class TestDeepSeekVisionMultimodalContent:
         assert image_carrier["role"] == "user"
         assert image_block in image_carrier["content"]
 
+    def test_tool_result_image_carrier_placed_directly_after_tool_result(self):
+        for next_message in (
+            {"role": "user", "content": "so what do you see?"},
+            {"role": "assistant", "content": "I see an image."},
+        ):
+            tool_message = {**self._image_message(role="tool"), "tool_call_id": "call_1"}
+            image_block = tool_message["content"][1]
+
+            result = self.config._transform_messages([tool_message, next_message], model=self.VISION_MODEL)
+
+            assert [m["role"] for m in result] == ["tool", "user", next_message["role"]]
+            assert image_block in result[1]["content"]
+            assert result[2] == next_message
+
     def test_audio_block_collapsed_even_on_vision_model(self):
         messages = [
             {