1 files changed, 8 insertions, 1 deletions
diff --git a/spec/javascripts/fly_out_nav_spec.js b/spec/javascripts/fly_out_nav_spec.js
index f8b37c0edde..f4b4d7980a4 100644
--- a/spec/javascripts/fly_out_nav_spec.js
+++ b/spec/javascripts/fly_out_nav_spec.js
@@ -271,12 +271,19 @@ describe('Fly out sidebar navigation', () => {
     });
 
     it('sets transform of sub-items', () => {
+      const sidebar = document.createElement('div');
       const subItems = el.querySelector('.sidebar-sub-level-items');
+
+      sidebar.style.width = '200px';
+
+      document.body.appendChild(sidebar);
+
+      setSidebar(sidebar);
       showSubLevelItems(el);
 
       expect(
         subItems.style.transform,
-      ).toBe(`translate3d(0px, ${Math.floor(el.getBoundingClientRect().top) - getHeaderHeight()}px, 0px)`);
+      ).toBe(`translate3d(200px, ${Math.floor(el.getBoundingClientRect().top) - getHeaderHeight()}px, 0px)`);
     });
 
     it('sets is-above when element is above', () => {