');
+
+ // Tests the 'changed' command using the second argument.
+ // Refresh page for testing 'changed' command to same element again.
+ $this->drupalGet($form_path);
+ $page->pressButton("AJAX changed: Click to mark div changed with asterisk.");
+ $this->assertWaitPageContains('
This div can be marked as changed or not.
* ');
+
+ // Tests the 'css' command.
+ $page->pressButton("Set the '#box' div to be blue.");
+ $this->assertWaitPageContains('
');
+
+ // Tests the 'data' command.
+ $page->pressButton("AJAX data command: Issue command.");
+ $this->assertTrue($page->waitFor(10, function () use ($session) {
+ return 'testvalue' === $session->evaluateScript('window.jQuery("#data_div").data("testkey")');
+ }));
+
+ // Tests the 'html' command.
+ $page->pressButton("AJAX html: Replace the HTML in a selector.");
+ $this->assertWaitPageContains('
replacement text
');
+
+ // Tests the 'insert' command.
+ $page->pressButton("AJAX insert: Let client insert based on #ajax['method'].");
+ $this->assertWaitPageContains('
insert replacement textOriginal contents
');
+
+ // Tests the 'invoke' command.
+ $page->pressButton("AJAX invoke command: Invoke addClass() method.");
+ $this->assertWaitPageContains('
Original contents
');
+
+ // Tests the 'prepend' command.
+ $page->pressButton("AJAX 'prepend': Click to prepend something");
+ $this->assertWaitPageContains('
prepended textSomething will be prepended to this div.
');
+
+ // Tests the 'remove' command.
+ $page->pressButton("AJAX 'remove': Click to remove text");
+ $this->assertWaitPageContains('
');
+
+ // Tests the 'restripe' command.
+ $page->pressButton("AJAX 'restripe' command");
+ $this->assertWaitPageContains('
| first row |
');
+ $this->assertWaitPageContains('
| second row |
');
+
+ // Tests the 'settings' command.
+ $test_settings_command = <<
' + settings.ajax_forms_test.foo + '');
+ }
+};
+JS;
+ $session->executeScript($test_settings_command);
+ // @todo: Replace after https://www.drupal.org/project/drupal/issues/2616184
+ $session->executeScript('window.jQuery("#edit-settings-command-example").mousedown();');
+ $this->assertWaitPageContains('
42
');
+ }
+
+ /**
+ * Asserts that page contains a text after waiting.
+ *
+ * @param string $text
+ * A needle text.
+ */
+ protected function assertWaitPageContains($text) {
+ $page = $this->getSession()->getPage();
+ $page->waitFor(10, function () use ($page, $text) {
+ return stripos($page->getContent(), $text) !== FALSE;
+ });
+ $this->assertContains($text, $page->getContent());
+ }
+
+}
diff --git a/core/tests/Drupal/KernelTests/Core/Ajax/CommandsTest.php b/core/tests/Drupal/KernelTests/Core/Ajax/CommandsTest.php
new file mode 100644
index 00000000..a6bbe0b2
--- /dev/null
+++ b/core/tests/Drupal/KernelTests/Core/Ajax/CommandsTest.php
@@ -0,0 +1,111 @@
+installSchema('system', ['performance']);
+ }
+
+ /**
+ * Regression test: Settings command exists regardless of JS aggregation.
+ */
+ public function testAttachedSettings() {
+ $assert = function ($message) {
+ $response = new AjaxResponse();
+ $response->setAttachments([
+ 'library' => ['core/drupalSettings'],
+ 'drupalSettings' => ['foo' => 'bar'],
+ ]);
+
+ $ajax_response_attachments_processor = \Drupal::service('ajax_response.attachments_processor');
+ $subscriber = new AjaxResponseSubscriber($ajax_response_attachments_processor);
+ $event = new FilterResponseEvent(
+ \Drupal::service('http_kernel'),
+ new Request(),
+ HttpKernelInterface::MASTER_REQUEST,
+ $response
+ );
+ $subscriber->onResponse($event);
+ $expected = [
+ 'command' => 'settings',
+ ];
+ $this->assertCommand($response->getCommands(), $expected, $message);
+ };
+
+ $config = $this->config('system.performance');
+
+ $config->set('js.preprocess', FALSE)->save();
+ $assert('Settings command exists when JS aggregation is disabled.');
+
+ $config->set('js.preprocess', TRUE)->save();
+ $assert('Settings command exists when JS aggregation is enabled.');
+ }
+
+ /**
+ * Asserts the array of Ajax commands contains the searched command.
+ *
+ * An AjaxResponse object stores an array of Ajax commands. This array
+ * sometimes includes commands automatically provided by the framework in
+ * addition to commands returned by a particular controller. During testing,
+ * we're usually interested that a particular command is present, and don't
+ * care whether other commands precede or follow the one we're interested in.
+ * Additionally, the command we're interested in may include additional data
+ * that we're not interested in. Therefore, this function simply asserts that
+ * one of the commands in $haystack contains all of the keys and values in
+ * $needle. Furthermore, if $needle contains a 'settings' key with an array
+ * value, we simply assert that all keys and values within that array are
+ * present in the command we're checking, and do not consider it a failure if
+ * the actual command contains additional settings that aren't part of
+ * $needle.
+ *
+ * @param $haystack
+ * An array of rendered Ajax commands returned by the server.
+ * @param $needle
+ * Array of info we're expecting in one of those commands.
+ * @param $message
+ * An assertion message.
+ */
+ protected function assertCommand($haystack, $needle, $message) {
+ $found = FALSE;
+ foreach ($haystack as $command) {
+ // If the command has additional settings that we're not testing for, do
+ // not consider that a failure.
+ if (isset($command['settings']) && is_array($command['settings']) && isset($needle['settings']) && is_array($needle['settings'])) {
+ $command['settings'] = array_intersect_key($command['settings'], $needle['settings']);
+ }
+ // If the command has additional data that we're not testing for, do not
+ // consider that a failure. Also, == instead of ===, because we don't
+ // require the key/value pairs to be in any particular order
+ // (http://php.net/manual/language.operators.array.php).
+ if (array_intersect_key($command, $needle) == $needle) {
+ $found = TRUE;
+ break;
+ }
+ }
+ $this->assertTrue($found, $message);
+ }
+
+}