diff --git a/src/components/image-editor/ImageCanvasUploadUtils.test.ts b/src/components/image-editor/ImageCanvasUploadUtils.test.ts
new file mode 100644
index 000000000..f44758e86
--- /dev/null
+++ b/src/components/image-editor/ImageCanvasUploadUtils.test.ts
@@ -0,0 +1,17 @@
+import { describe, expect, it } from 'vitest';
+
+import { resolveUploadedAssetKind } from './ImageCanvasUploadUtils';
+
+describe('ImageCanvasUploadUtils', () => {
+  it('maps supported upload media types to persisted asset kinds', () => {
+    expect(resolveUploadedAssetKind('image')).toBe('image');
+    expect(resolveUploadedAssetKind('video')).toBe('video');
+    expect(resolveUploadedAssetKind('audio')).toBe('audio');
+  });
+
+  it('rejects image sequences from the single-file upload path', () => {
+    expect(() => resolveUploadedAssetKind('image-sequence')).toThrow(
+      '序列帧素材不支持按单个媒体文件上传',
+    );
+  });
+});
diff --git a/src/components/image-editor/ImageCanvasUploadUtils.ts b/src/components/image-editor/ImageCanvasUploadUtils.ts
index da6b56967..84676937c 100644
--- a/src/components/image-editor/ImageCanvasUploadUtils.ts
+++ b/src/components/image-editor/ImageCanvasUploadUtils.ts
@@ -11,6 +11,9 @@ export function resolveUploadedAssetKind(
       return 'video';
     case 'audio':
       return 'audio';
+    case 'image-sequence':
+      throw new Error('序列帧素材不支持按单个媒体文件上传');
+    case 'image':
+      return 'image';
   }
-  return 'image';
 }