[BugFix] Fix image_features is None crash in PaddleOCR-VL

[nandanadileep]

Motivation

Fix AttributeError: NoneType object has no attribute cast when image\_features is None during PaddleOCR-VL get\_input\_embeddings. This can happen when no image feature is available for the current forward path.

Modifications

• fastdeploy/model\_executor/models/paddleocr\_vl/paddleocr\_vl.py: Changed condition from if image\_token\_num > 0 to if image\_token\_num > 0 and image\_features is not None so embedding replacement only runs when both image tokens exist and image\_features is not None.
• tests/model\_executor/test\_paddleocr\_vl.py: Added unit tests covering the three cases (no image tokens + None features, image tokens + None features, image tokens + valid features).

Usage or Command

N/A

Accuracy Tests

N/A

Checklist

• Add at least a tag in the PR title.
• Format your code, run pre-commit before commit.
• Add unit tests.
• Provide accuracy results.
• If the current PR is submitting to the release branch, make sure the PR has been submitted to the develop branch, then cherry-pick it to the release branch with the [Cherry-Pick] PR tag.

Closes #6179

[CLAassistant]

All committers have signed the CLA.

[nandanadileep]

I have read the CLA Document and I hereby sign the CLA

[PaddlePaddle-bot]

🤖 Paddle-CI-Agent | pr_review | 2026-07-08 07:39:41

📋 Review 摘要

PR 概述：修复 PaddleOCR-VL 在 image_features=None 时替换图像 token embedding 崩溃的问题，并补充回归单测。
变更范围：fastdeploy/model_executor/models/paddleocr_vl/、tests/model_executor/
影响面 Tag：[Models]

问题

级别	文件	概述
🟡 建议	tests/model_executor/test_paddleocr_vl.py:71	新增测试文件保留了直接执行入口，命中 FastDeploy checklist §C 的 test 入口表层信号

历史 Findings 修复情况

Finding	问题	状态
F1	当前 PR 缺少 PaddleOCR-VL image_features=None 回归用例	✅ 已修复

📝 PR 规范检查

符合规范；标题使用官方 Tag，描述已包含 checklist §D2 要求的 Motivation、Modifications、Usage or Command、Accuracy Tests 和 Checklist 结构。

总体评价

主修复将图像 embedding 替换限制在 image_features 非空时执行，能避免 None.cast 崩溃；新增测试覆盖了历史缺口。当前环境缺少 paddle，未能实际运行新增单测，本轮仅完成静态审查和行号/Markdown 校验。

[PaddlePaddle-bot]

🟡 建议 新增测试文件里保留了 if __name__ == "__main__" 入口。

FastDeploy checklist §C 明确把 test/** 中的 if __name__ == "__main__" 作为环境依赖 hack 表层信号。测试应交给 pytest/unittest 发现机制运行，避免直接执行入口造成 CI/本地执行方式分叉。

建议修复方式：删除文件末尾的入口块，仅保留 TestPaddleOCRVLForConditionalGeneration 用例类。