Check for sidebar cookie instead of class when resizing window

app/assets/javascripts/new_sidebar.js

@@ -68,7 +68,7 @@ export default class NewNavSidebar {
     if (breakpoint === 'sm' || breakpoint === 'md') {
       this.toggleCollapsedSidebar(true);
     } else if (breakpoint === 'lg') {
-      const collapse = this.$sidebar.hasClass('sidebar-icons-only');
+      const collapse = Cookies.get('sidebar_collapsed') === 'true';
       this.toggleCollapsedSidebar(collapse);
     }
   }

spec/features/boards/boards_spec.rb

@@ -13,7 +13,7 @@ describe 'Issue Boards', js: true do
     project.team << [user, :master]
     project.team << [user2, :master]
 
-    allow_any_instance_of(ApplicationHelper).to receive(:collapsed_sidebar?).and_return(true)
+    page.driver.set_cookie('sidebar_collapsed', 'true')
 
     sign_in(user)
   end

spec/features/issues/filtered_search/visual_tokens_spec.rb

@@ -28,7 +28,7 @@ describe 'Visual tokens', js: true do
     sign_in(user)
     create(:issue, project: project)
 
-    allow_any_instance_of(ApplicationHelper).to receive(:collapsed_sidebar?).and_return(true)
+    page.driver.set_cookie('sidebar_collapsed', 'true')
 
     visit project_issues_path(project)
   end

spec/features/merge_requests/diff_notes_avatars_spec.rb

@@ -22,7 +22,7 @@ feature 'Diff note avatars', js: true do
     project.team << [user, :master]
     sign_in user
 
-    allow_any_instance_of(ApplicationHelper).to receive(:collapsed_sidebar?).and_return(true)
+    page.driver.set_cookie('sidebar_collapsed', 'true')
   end
 
   context 'discussion tab' do

spec/features/merge_requests/user_posts_diff_notes_spec.rb

@@ -6,7 +6,7 @@ feature 'Merge requests > User posts diff notes', :js do
   let(:project) { merge_request.source_project }
 
   before do
-    allow_any_instance_of(ApplicationHelper).to receive(:collapsed_sidebar?).and_return(true)
+    page.driver.set_cookie('sidebar_collapsed', 'true')
 
     project.add_developer(user)
     sign_in(user)