fix(test): Fix possible sanity test bug

box · Dec 13, 2019 · 71aa369 · 71aa369
1 parent 7472809
commit 71aa369
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/lib/ThumbnailsSidebar.js b/src/lib/ThumbnailsSidebar.js
@@ -311,6 +311,10 @@ class ThumbnailsSidebar {
      * @return {Promise} - promise reolves with the image HTMLElement or null if generation is in progress
      */
     createThumbnailImage(itemIndex) {
+        if (!this.thumbnailImageCache) {
+            return Promise.resolve(null);
+        }
+
         const cacheEntry = this.thumbnailImageCache.get(itemIndex);
 
         // If this thumbnail has already been cached, use it