Add group file template tests

Adds tests for group level file templates.

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

 - return unless @group.feature_available?(:custom_file_templates_for_namespace)
 
-%section.settings.no-animate#js-templates{ class: ('expanded' if expanded) }
+%section.settings.no-animate#js-templates{ class: ('expanded' if expanded), data: { qa_selector: 'file_template_repositories' } }
   .settings-header
     %h4
       = _('Templates')
@@ -18,6 +18,6 @@
             .form-text.text-muted
               = _('Select a template repository')
               = link_to icon('question-circle'), help_page_path('user/group/index.md', anchor: 'group-file-templates-premium'), target: '_blank'
-          = project_select_tag('group[file_template_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',
+          = project_select_tag('group[file_template_project_id]', class: 'project-item-select hidden-filter-value qa-file-template-repository-dropdown', 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: @group.checked_file_template_project_id)
-      = f.submit _('Save changes'), class: "btn btn-success"
+      = f.submit _('Save changes'), class: "btn btn-success", data: { qa_selector: 'save_changes_button' }

qa/qa/ee/page/group/settings/general.rb

@@ -28,6 +28,12 @@ module QA
                 view 'ee/app/views/shared/_repository_size_limit_setting.html.haml' do
                   element :repository_size_limit_field
                 end
+
+                view 'ee/app/views/groups/_templates_setting.html.haml' do
+                  element :file_template_repository_dropdown
+                  element :file_template_repositories
+                  element :save_changes_button
+                end
               end
             end
 
@@ -72,6 +78,25 @@ module QA
             def set_repository_size_limit(limit)
               find_element(:repository_size_limit_field).set limit
             end
+
+            def current_file_template_repository
+              expand_section(:file_template_repositories)
+
+              within_element(:file_template_repository_dropdown) do
+                current_selection
+              end
+            end
+
+            def choose_file_template_repository(path)
+              expand_section(:file_template_repositories)
+
+              within_element(:file_template_repository_dropdown) do
+                clear_current_selection_if_present
+              end
+              click_element :file_template_repository_dropdown
+              search_and_select(path)
+              click_element :save_changes_button
+            end
           end
         end
       end

qa/qa/page/component/select2.rb

@@ -20,12 +20,20 @@ module QA
 
         def search_and_select(item_text)
           find('.select2-input').set(item_text)
+
+          wait_for_search_to_complete
+
           select_item(item_text)
         end
 
         def expand_select_list
           find('span.select2-arrow').click
         end
+
+        def wait_for_search_to_complete
+          has_css?('.select2-active')
+          has_no_css?('.select2-active', wait: 30)
+        end
       end
     end
   end

qa/qa/page/file/shared/commit_button.rb

@@ -13,6 +13,10 @@ module QA
 
           def commit_changes
             click_element(:commit_button)
+
+            wait(reload: false, max: 60) do
+              finished_loading?
+            end
           end
         end
       end

qa/qa/specs/features/ee/browser_ui/1_manage/group/group_file_template_spec.rb

+# frozen_string_literal: true
+
+module QA
+  context 'Manage' do
+    describe 'Group file templates' do
+      include Support::Api
+
+      templates = [
+        {
+          type: 'Dockerfile',
+          template: 'custom_dockerfile',
+          name: 'Dockerfile/custom_dockerfile.dockerfile',
+          content: 'dockerfile template test'
+        },
+        {
+          type: '.gitignore',
+          template: 'custom_gitignore',
+          name: 'gitignore/custom_gitignore.gitignore',
+          content: 'gitignore template test'
+        },
+        {
+          type: '.gitlab-ci.yml',
+          template: 'custom_gitlab-ci',
+          name: 'gitlab-ci/custom_gitlab-ci.yml',
+          content: 'gitlab-ci template test'
+        },
+        {
+          type: 'LICENSE',
+          template: 'custom_license',
+          name: 'LICENSE/custom_license.txt',
+          content: 'license template test'
+        }
+      ]
+
+      before(:all) do
+        login
+
+        @group = Resource::Group.fabricate_via_api! do |group|
+          group.path = 'template-group'
+        end
+
+        @file_template_project = Resource::Project.fabricate_via_api! do |project|
+          project.group = @group
+          project.name = 'group-file-template-project'
+          project.description = 'Add group file templates'
+          project.initialize_with_readme = true
+        end
+
+        templates.each do |template|
+          Resource::File.fabricate_via_api! do |file|
+            file.project = @file_template_project
+            file.name = template[:name]
+            file.content = template[:content]
+            file.commit_message = 'Add test file templates'
+          end
+        end
+
+        @project = Resource::Project.fabricate_via_api! do |project|
+          project.group = @group
+          project.name = 'group-file-template-project-2'
+          project.description = 'Add files for group file templates'
+          project.initialize_with_readme = true
+        end
+
+        Page::Main::Menu.perform(&:sign_out)
+      end
+
+      after(:all) do
+        login unless Page::Main::Menu.perform { |p| p.has_personal_area?(wait: 0) }
+
+        remove_group_file_template_if_set
+      end
+
+      templates.each do |template|
+        it "creates file via custom #{template[:type]} file template" do
+          login
+          set_file_template_if_not_already_set
+
+          @project.visit!
+
+          Page::Project::Show.perform(&:create_new_file!)
+          Page::File::Form.perform do |form|
+            form.select_template template[:type], template[:template]
+          end
+
+          expect(page).to have_content(template[:content])
+
+          Page::File::Form.perform(&:commit_changes)
+
+          expect(page).to have_content('The file has been successfully created.')
+          expect(page).to have_content(template[:type])
+          expect(page).to have_content('Add new file')
+          expect(page).to have_content(template[:content])
+        end
+      end
+
+      def login
+        Runtime::Browser.visit(:gitlab, Page::Main::Login)
+        Page::Main::Login.perform(&:sign_in_using_admin_credentials)
+      end
+
+      def set_file_template_if_not_already_set
+        api_client = Runtime::API::Client.new(:gitlab)
+        response = get Runtime::API::Request.new(api_client, "/groups/#{@group.id}").url
+
+        if parse_body(response)[:file_template_project_id]
+          return
+        else
+          @group.visit!
+          Page::Group::Menu.perform(&:click_group_general_settings_item)
+
+          Page::Group::Settings::General.perform do |general|
+            general.choose_file_template_repository(@file_template_project.name)
+          end
+        end
+      end
+
+      def remove_group_file_template_if_set
+        api_client = Runtime::API::Client.new(:gitlab)
+        response = get Runtime::API::Request.new(api_client, "/groups/#{@group.id}").url
+
+        if parse_body(response)[:file_template_project_id]
+          put Runtime::API::Request.new(api_client, "/groups/#{@group.id}").url, { file_template_project_id: nil }
+        end
+      end
+    end
+  end
+end