4 files changed, 51 insertions, 0 deletions
diff --git a/js/xpconnect/tests/browser/browser.ini b/js/xpconnect/tests/browser/browser.ini
new file mode 100644
index 000000000..bf7271df0
--- /dev/null
+++ b/js/xpconnect/tests/browser/browser.ini
@@ -0,0 +1,4 @@
+[DEFAULT]
+support-files =
+  browser_deadObjectOnUnload.html
+[browser_dead_object.js]
diff --git a/js/xpconnect/tests/browser/browser_deadObjectOnUnload.html b/js/xpconnect/tests/browser/browser_deadObjectOnUnload.html
new file mode 100644
index 000000000..ceb40b20b
--- /dev/null
+++ b/js/xpconnect/tests/browser/browser_deadObjectOnUnload.html
@@ -0,0 +1,18 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test page for https://bugzilla.mozilla.org/show_bug.cgi?id=1242643
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test page for Bug 1242643</title>
+</head>
+<body onUnload="onUnload();">
+<p><span id="samplepage">sample page</span></p>
+<script type="application/javascript">
+  function onUnload() {
+    console.log('in unload');
+  }
+</script>
+</body>
+</html>
diff --git a/js/xpconnect/tests/browser/browser_dead_object.js b/js/xpconnect/tests/browser/browser_dead_object.js
new file mode 100644
index 000000000..71ec36f2d
--- /dev/null
+++ b/js/xpconnect/tests/browser/browser_dead_object.js
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// For bug 773980, test that Components.utils.isDeadWrapper works as expected.
+
+add_task(function* test() {
+  const url = "http://mochi.test:8888/browser/js/xpconnect/tests/browser/browser_deadObjectOnUnload.html";
+  let newTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+  let browser = gBrowser.selectedBrowser;
+  let contentDocDead = yield ContentTask.spawn(browser,{}, function*(browser){
+    let doc = content.document;
+    let promise = ContentTaskUtils.waitForEvent(this, "DOMContentLoaded", true);
+    content.location = "about:home";
+    yield promise;
+    return Components.utils.isDeadWrapper(doc);
+  });
+  is(contentDocDead, true, "wrapper is dead");
+  yield BrowserTestUtils.removeTab(newTab); 
+});
diff --git a/js/xpconnect/tests/browser/moz.build b/js/xpconnect/tests/browser/moz.build
new file mode 100644
index 000000000..29412da46
--- /dev/null
+++ b/js/xpconnect/tests/browser/moz.build
@@ -0,0 +1,8 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+BROWSER_CHROME_MANIFESTS += ['browser.ini']
+