Allow to pick a sugroup to hold the Insights config

Signed-off-by: Rémy Coutable <remy@rymai.me>

ee/app/views/groups/_insights.html.haml

 - return unless @group.insights_available?
 
-%section.settings.no-animate{ class: ('expanded' if expanded) }
+%section.settings.insights-settings.no-animate{ class: ('expanded' if expanded) }
   .settings-header
     %h4
       = _('Insights')
@@ -22,5 +22,5 @@
                 = _('Select a repository')
                 = link_to icon('question-circle'), help_page_path('user/group/index.md', anchor: 'insights-ultimate'), target: '_blank'
             = project_select_tag('group[insight_attributes][project_id]', class: 'project-item-select hidden-filter-value', toggle_class: 'js-project-search js-project-filter js-filter-submit', dropdown_class: 'dropdown-menu-selectable dropdown-menu-project js-filter-submit',
-              placeholder: _('Search projects'), idAttribute: 'id', data: { order_by: 'last_activity_at', idattribute: 'id', simple_filter: true, allow_clear: true }, value: insight.project_id)
+              placeholder: _('Search projects'), idAttribute: 'id', data: { order_by: 'last_activity_at', idattribute: 'id', simple_filter: true, allow_clear: true, include_projects_in_subgroups: true }, value: insight.project_id)
       = form.submit _('Save changes'), class: "btn btn-success"

ee/changelogs/unreleased/11268-make-it-able-to-pick-a-project-under-a-subgroup-for-insights-config.yml

+---
+title: Allow to pick a subgroup to hold the Insights config
+merge_request: 24053
+author:
+type: added

ee/spec/features/groups/settings/user_configures_insights_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Groups > Settings > User configures Insights', :js do
+  include Select2Helper
+
+  let(:user) { create(:user) }
+  let(:group) { create(:group) }
+  let(:subgroup) { create(:group, parent: group) }
+  let(:project) { create(:project, namespace: subgroup) }
+
+  before do
+    group.add_owner(user)
+    sign_in(user)
+  end
+
+  context 'without correct license' do
+    before do
+      stub_licensed_features(insights: false)
+
+      visit edit_group_path(group)
+    end
+
+    it 'does not show the Insight config' do
+      expect(page).not_to have_content 'Insights'
+    end
+  end
+
+  context 'with correct license' do
+    before do
+      stub_licensed_features(insights: true)
+
+      visit edit_group_path(group)
+    end
+
+    it 'allows to select a project in a subgroup for the Insights config' do
+      expect(page).to have_content 'Insights'
+
+      page.within '.insights-settings form' do
+        select2(project.id, from: '#group_insight_attributes_project_id')
+
+        click_button 'Save changes'
+
+        expect(page).to have_content(project.full_name)
+      end
+    end
+  end
+end