diff --git a/toolkit/components/places/tests/autocomplete/test_escape_self.js b/toolkit/components/places/tests/autocomplete/test_escape_self.js
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+++ b/toolkit/components/places/tests/autocomplete/test_escape_self.js
@@ -0,0 +1,62 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Places Test Code.
+ *
+ * The Initial Developer of the Original Code is
+ * Edward Lee <edward.lee@engineering.uiuc.edu>.
+ * Portions created by the Initial Developer are Copyright (C) 2008
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/**
+ * Test bug 422698 to make sure searches with urls from the location bar
+ * correctly match itself when it contains escaped characters.
+ */
+
+// Define some shared uris and titles (each page needs its own uri)
+let kURIs = [
+  "http://unescapeduri/",
+  "http://escapeduri/%40/",
+];
+let kTitles = [
+  "title",
+];
+
+// Add unescaped and escaped uris
+addPageBook(0, 0);
+addPageBook(1, 0);
+
+// Provide for each test: description; search terms; array of gPages indices of
+// pages that should match; optional function to be run before the test
+let gTests = [
+  ["0: Unescaped location matches itself",
+   kURIs[0], [0]],
+  ["1: Escaped location matches itself",
+   kURIs[1], [1]],
+];