1 files changed, 21 insertions, 0 deletions
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); 
+});