[Bugfix] Investigate Qwen2-VL failing test (vllm-project#21527)

Signed-off-by: Isotr0py <[email protected]>

Author: Isotr0py

tests/models/multimodal/generation/test_common.py

@@ -677,6 +677,7 @@
         prompt_formatter=lambda img_prompt: f"<|im_start|>User\n{img_prompt}<|im_end|>\n<|im_start|>assistant\n", # noqa: E501
         img_idx_to_prompt=lambda idx: "<|vision_start|><|image_pad|><|vision_end|>", # noqa: E501
         video_idx_to_prompt=lambda idx: "<|vision_start|><|video_pad|><|vision_end|>", # noqa: E501
+        multi_image_prompt="Picture 1: <vlm_image>\nPicture 2: <vlm_image>\nDescribe these two images with one paragraph respectively.",    # noqa: E501
         max_model_len=4096,
         max_num_seqs=2,
         auto_cls=AutoModelForVision2Seq,