diff --git a/js/tests/unit/dropdown.spec.js b/js/tests/unit/dropdown.spec.js
index 918435247..8447be60b 100644
--- a/js/tests/unit/dropdown.spec.js
+++ b/js/tests/unit/dropdown.spec.js
@@ -75,6 +75,7 @@ describe('Dropdown', () => {
           resolve()
         })
 
+        expect().nothing()
         dropdown.show()
       })
     })