2 files changed, 28 insertions, 0 deletions
diff --git a/modules/simpletest/tests/ajax.test b/modules/simpletest/tests/ajax.test
index 2788d4f90b77..2a2469334d39 100644
--- a/modules/simpletest/tests/ajax.test
+++ b/modules/simpletest/tests/ajax.test
@@ -211,6 +211,15 @@ class AJAXCommandsTestCase extends AJAXTestCase {
     );
     $this->assertCommand($commands, $expected, "'data' AJAX command issued with correct key and value");
 
+    // Tests the 'invoke' command.
+    $commands = $this->drupalPostAJAX($form_path, $edit, array('op' => t("AJAX invoke command: Invoke addClass() method.")));
+    $expected = array(
+      'command' => 'invoke',
+      'method' => 'addClass',
+      'arguments' => array('error'),
+    );
+    $this->assertCommand($commands, $expected, "'invoke' AJAX command issued with correct method and argument");
+
     // Tests the 'html' command.
     $commands = $this->drupalPostAJAX($form_path, $edit, array('op' => t("AJAX html: Replace the HTML in a selector.")));
     $expected = array(
diff --git a/modules/simpletest/tests/ajax_forms_test.module b/modules/simpletest/tests/ajax_forms_test.module
index 531c703fda68..21784dfa353c 100644
--- a/modules/simpletest/tests/ajax_forms_test.module
+++ b/modules/simpletest/tests/ajax_forms_test.module
@@ -176,6 +176,16 @@ function ajax_forms_test_ajax_commands_form($form, &$form_state) {
     '#suffix' => '<div id="data_div">Data attached to this div.</div>',
   );
 
+  // Shows the AJAX 'invoke' command.
+  $form['invoke_command_example'] = array(
+    '#value' => t("AJAX invoke command: Invoke addClass() method."),
+    '#type' => 'submit',
+    '#ajax' => array(
+      'callback' => 'ajax_forms_test_advanced_commands_invoke_callback',
+    ),
+    '#suffix' => '<div id="invoke_div">Original contents</div>',
+  );
+
   // Shows the AJAX 'html' command.
   $form['html_command_example'] = array(
     '#value' => t("AJAX html: Replace the HTML in a selector."),
@@ -332,6 +342,15 @@ function ajax_forms_test_advanced_commands_data_callback($form, $form_state) {
 }
 
 /**
+ * AJAX callback for 'invoke'.
+ */
+function ajax_forms_test_advanced_commands_invoke_callback($form, $form_state) {
+  $commands = array();
+  $commands[] = ajax_command_invoke('#invoke_div', 'addClass', array('error'));
+  return array('#type' => 'ajax', '#commands' => $commands);
+}
+
+/**
  * AJAX callback for 'html'.
  */
 function ajax_forms_test_advanced_commands_html_callback($form, $form_state) {