diff --git a/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.info.yml b/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.info.yml
new file mode 100644
index 0000000..b2ad373
--- /dev/null
+++ b/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.info.yml
@@ -0,0 +1,10 @@
+name: 'Contextual Ajax tests'
+type: module
+description: 'Provides contextual Ajax tests.'
+package: Testing
+version: VERSION
+core: 8.x
+dependencies:
+  - contextual
+  - block
+  - router_test
diff --git a/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.links.contextual.yml b/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.links.contextual.yml
new file mode 100644
index 0000000..c58afcb
--- /dev/null
+++ b/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.links.contextual.yml
@@ -0,0 +1,4 @@
+contextual_ajax_test:
+  title: 'Contextual Ajax Test'
+  route_name: 'router_test.2'
+  group: 'block'
diff --git a/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.module b/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.module
new file mode 100644
index 0000000..5c9afcb
--- /dev/null
+++ b/core/modules/contextual/tests/modules/contextual_ajax_test/contextual_ajax_test.module
@@ -0,0 +1,21 @@
+<?php
+
+/**
+ * @file
+ * Test Contextual links that use Ajax
+ */
+
+/**
+ * Implements hook_contextual_links_view_alter().
+ *
+ * Change Configure Blocks into modal links.
+ */
+function contextual_ajax_test_contextual_links_view_alter(&$element, $items) {
+  drupal_set_message('fffff');
+  if (isset($element['#links']['contextual-ajax-test'])) {
+    $element['#links']['contextual-ajax-test']['attributes'] = [
+      'class' => ['use-ajax'],
+      'data-dialog-type' => 'modal',
+    ];
+  }
+}