1 files changed, 8 insertions, 1 deletions
diff --git a/spec/frontend/helpers/local_storage_helper_spec.js b/spec/frontend/helpers/local_storage_helper_spec.js
index 18aec0f329a..6b44ea3a4c3 100644
--- a/spec/frontend/helpers/local_storage_helper_spec.js
+++ b/spec/frontend/helpers/local_storage_helper_spec.js
@@ -1,8 +1,15 @@
 import { useLocalStorageSpy } from './local_storage_helper';
 
-useLocalStorageSpy();
+describe('block before helper is installed', () => {
+  it('should leave original localStorage intact', () => {
+    expect(localStorage.getItem).toEqual(expect.any(Function));
+    expect(jest.isMockFunction(localStorage.getItem)).toBe(false);
+  });
+});
 
 describe('localStorage helper', () => {
+  useLocalStorageSpy();
+
   it('mocks localStorage but works exactly like original localStorage', () => {
     localStorage.setItem('test', 'testing');
     localStorage.setItem('test2', 'testing');