Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/menu_link_content/tests/menu_link_content_dynamic_route/menu_link_content_dynamic_route.info.yml

@@ -0,0 +1,6 @@
+name: 'Menu link content dynamic route'
+type: module
+core: 8.x
+hidden: true
+dependencies:
+  - menu_link_content

core/modules/menu_link_content/tests/menu_link_content_dynamic_route/menu_link_content_dynamic_route.routing.yml

@@ -0,0 +1,2 @@
+route_callbacks:
+  - 'Drupal\menu_link_content_dynamic_route\Routes::dynamic'

core/modules/menu_link_content/tests/menu_link_content_dynamic_route/src/Routes.php

@@ -0,0 +1,19 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\menu_link_content_dynamic_route\Routes.
+ */
+
+namespace Drupal\menu_link_content_dynamic_route;
+
+/**
+ * Provides dynamic routes for test purposes.
+ */
+class Routes {
+
+  public function dynamic() {
+    return \Drupal::state()->get('menu_link_content_dynamic_route.routes', []);
+  }
+
+}

core/modules/menu_link_content/tests/outbound_processing_test/outbound_processing_test.info.yml

@@ -0,0 +1,4 @@
+name: 'Outbound route/path processing'
+type: module
+core: 8.x
+hidden: true

core/modules/menu_link_content/tests/outbound_processing_test/outbound_processing_test.routing.yml

@@ -0,0 +1,5 @@
+outbound_processing_test.route.csrf:
+  path: '/outbound_processing_test/route/csrf'
+  requirements:
+    _access: 'TRUE'
+    _csrf_token: 'TRUE'