--- /dev/null
+<?php
+
+namespace Drupal\FunctionalJavascriptTests\Ajax;
+
+use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
+
+/**
+ * Tests that form elements in groups work correctly with AJAX.
+ *
+ * @group Ajax
+ */
+class AjaxInGroupTest extends WebDriverTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected static $modules = ['ajax_forms_test'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ $this->drupalLogin($this->drupalCreateUser(['access content']));
+ }
+
+ /**
+ * Submits forms with select and checkbox elements via Ajax.
+ */
+ public function testSimpleAjaxFormValue() {
+ $this->drupalGet('/ajax_forms_test_get_form');
+
+ $assert_session = $this->assertSession();
+ $assert_session->responseContains('Test group');
+ $assert_session->responseContains('AJAX checkbox in a group');
+
+ $session = $this->getSession();
+ $checkbox_original = $session->getPage()->findField('checkbox_in_group');
+ $this->assertNotNull($checkbox_original, 'The checkbox_in_group is on the page.');
+ $original_id = $checkbox_original->getAttribute('id');
+
+ // Triggers a AJAX request/response.
+ $checkbox_original->check();
+
+ // The response contains a new nested "test group" form element, similar
+ // to the one already in the DOM except for a change in the form build id.
+ $checkbox_new = $assert_session->waitForElement('xpath', "//input[@name='checkbox_in_group' and not(@id='$original_id')]");
+ $this->assertNotNull($checkbox_new, 'DOM update: clicking the checkbox refreshed the checkbox_in_group structure');
+
+ $assert_session->responseContains('Test group');
+ $assert_session->responseContains('AJAX checkbox in a group');
+ $assert_session->responseContains('AJAX checkbox in a nested group');
+ $assert_session->responseContains('Another AJAX checkbox in a nested group');
+ }
+
+}