diff --git a/src/components/image-editor/ImageCanvasEditorGenerationIntegration.test.tsx b/src/components/image-editor/ImageCanvasEditorGenerationIntegration.test.tsx
index ffe305bff..72df3ae2a 100644
--- a/src/components/image-editor/ImageCanvasEditorGenerationIntegration.test.tsx
+++ b/src/components/image-editor/ImageCanvasEditorGenerationIntegration.test.tsx
@@ -40,6 +40,7 @@ const loadOrCreateRecentEditorProjectMock = vi.hoisted(() => vi.fn());
 const renameEditorProjectMock = vi.hoisted(() => vi.fn());
 const saveEditorProjectLayoutMock = vi.hoisted(() => vi.fn());
 const uploadEditorMediaAssetFileMock = vi.hoisted(() => vi.fn());
+const uploadEditorMediaAssetObjectFileMock = vi.hoisted(() => vi.fn());
 
 vi.mock('../../services/image-editor/editorProjectClient', async () => {
   const actual = await vi.importActual<
@@ -74,7 +75,10 @@ vi.mock('./ImageCanvasUiAssetExtractionRasterModel', () => ({
 
 vi.mock('../../services/image-editor/editorMediaAssetUploadClient', () => ({
   uploadEditorMediaAssetFile: uploadEditorMediaAssetFileMock,
-  uploadEditorMediaAssetObjectFile: vi.fn(),
+  // 中文注释：inline 源图上传走的是 object-only 版本，不是带签名 URL 的那个。留成裸 vi.fn()
+  // 会返回 undefined，取 objectKey 抛的 TypeError 被 extractUiDesignAssets 的 catch 吞成
+  // window.alert，最终只表现为「提取接口一次都没调」，报错里看不到任何线索。
+  uploadEditorMediaAssetObjectFile: uploadEditorMediaAssetObjectFileMock,
 }));
 
 vi.mock('./ImageCanvasProjectCoverSnapshotRenderer', () => ({
@@ -113,6 +117,17 @@ describe('ImageCanvasEditorView generation integration', () => {
       objectKey:
         'generated-character-drafts/editor/generation-references/marked-ui-design.png',
       assetObjectId: 'asset-object-marked-ui-design',
+      legacyPublicPath:
+        '/generated-character-drafts/editor/generation-references/marked-ui-design.png',
+      src: 'https://oss.example.com/marked-ui-design.png',
+    });
+    uploadEditorMediaAssetObjectFileMock.mockReset();
+    uploadEditorMediaAssetObjectFileMock.mockResolvedValue({
+      objectKey:
+        'generated-character-drafts/editor/generation-references/marked-ui-design.png',
+      assetObjectId: 'asset-object-marked-ui-design',
+      legacyPublicPath:
+        '/generated-character-drafts/editor/generation-references/marked-ui-design.png',
     });
   });