feature check new sidebar boards link

app/views/layouts/nav/_new_group_sidebar.html.haml

+- issues_sub_menu_items = ['groups#issues', 'labels#index', 'milestones#index']
+- if @group.feature_available?(:group_issue_boards)
+  - issues_sub_menu_items.push('boards#index')
 .nav-sidebar{ class: ("sidebar-icons-only" if collapsed_sidebar?) }
   .nav-sidebar-inner-scroll
     .context-header
@@ -31,7 +34,7 @@
                 %span
                   Contribution Analytics
 
-      = nav_link(path: ['groups#issues', 'boards#index', 'labels#index', 'milestones#index']) do
+      = nav_link(path: issues_sub_menu_items) do
         = link_to issues_group_path(@group), title: 'Issues' do
           .nav-icon-container
             = custom_icon('issues')
@@ -46,6 +49,7 @@
               %span
                 List
 
+          - if @group.feature_available?(:group_issue_boards)
             = nav_link(path: 'boards#index') do
               = link_to group_boards_path(@group), title: 'Boards' do
                 %span

spec/ee/spec/views/layouts/nav/_new_group_sidebar.html.haml_spec.rb

+require 'spec_helper'
+
+describe 'layouts/nav/_new_group_sidebar' do
+  before do
+    assign(:group, create(:group))
+  end
+
+  describe 'group issue boards link' do
+    it 'is not visible when there is no valid license' do
+      stub_licensed_features(group_issue_boards: false)
+
+      render
+
+      expect(rendered).not_to have_text 'Boards'
+    end
+
+    it 'is not visible when there is no valid license' do
+      stub_licensed_features(group_issue_boards: true)
+
+      render
+
+      expect(rendered).to have_text 'Boards'
+    end
+  end
+end