Added specs to test for subgroup titles on issue and mr pages

spec/features/projects/sub_group_issuables_spec.rb

+require 'spec_helper'
+
+describe 'Subgroup Issuables', :feature, :js do
+  let!(:parent_group) { create(:group, name: 'parentgroup') }
+  let!(:subgroup) { create(:group, parent: parent_group, name: 'subgroup') }
+  let!(:project) { create(:empty_project, namespace: subgroup, name: 'project') }
+  let(:user) { create(:user) }
+
+  before do
+    project.add_master(user)
+    login_as user
+  end
+
+  context 'empty issues index' do
+    before do
+      visit namespace_project_issues_path(project.namespace, project)
+    end
+
+    it_behaves_like 'has subgroup title', 'parentgroup', 'subgroup', 'project'
+  end
+
+  context 'empty merge request index' do
+    before do
+      visit namespace_project_merge_requests_path(project.namespace, project)
+    end
+
+    it_behaves_like 'has subgroup title', 'parentgroup', 'subgroup', 'project'
+  end
+end

spec/support/features/has_subgroup_title_spec.rb

+shared_examples 'has subgroup title' do |parent_group_name, subgroup_name, project_name|
+  it 'should show the full title' do
+    title = find('.title-container')
+
+    expect(title).not_to have_selector '.initializing'
+    expect(title).to have_content "#{parent_group_name} / #{subgroup_name} / #{project_name}"
+  end
+end