Ticket #30017: 30017.diff

tests/phpunit/includes/testcase-ajax.php

@@ -17 +17 @@
 abstract class WP_Ajax_UnitTestCase extends WP_UnitTestCase {
 
         /**
+         * Whether the admin_init action has been called.
+         *
+         * @since 4.2.0
+         *
+         * @var bool
+         */
+        protected static $did_admin_init = false;
+
+        /**
          * Last AJAX response.  This is set via echo -or- wp_die.
          * @var type
          */
@@ -171 +180 @@
                 $_REQUEST        = array_merge( $_POST, $_GET );
 
                 // Call the hooks
-                do_action( 'admin_init' );
+                if ( ! self::$did_admin_init ) {
+                        do_action( 'admin_init' );
+                        self::$did_admin_init = true;
+                }
+
                 do_action( 'wp_ajax_' . $_REQUEST['action'], null );
 
                 // Save the output