1 files changed, 20 insertions, 0 deletions
diff --git a/docshell/test/unit_ipc/test_pb_notification_ipc.js b/docshell/test/unit_ipc/test_pb_notification_ipc.js
new file mode 100644
index 000000000..1517a479f
--- /dev/null
+++ b/docshell/test/unit_ipc/test_pb_notification_ipc.js
@@ -0,0 +1,20 @@
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+
+function run_test() {
+  var notifications = 0;
+  var obs = {
+    observe: function(aSubject, aTopic, aData) {
+      do_check_eq(aTopic, "last-pb-context-exited");
+      notifications++;
+    }
+  };
+  var os = Cc["@mozilla.org/observer-service;1"].getService(Ci.nsIObserverService);
+  os.addObserver(obs, "last-pb-context-exited", false);
+ 
+  run_test_in_child("../unit/test_pb_notification.js",
+                    function() {
+                      do_check_eq(notifications, 1);
+                      do_test_finished();
+                    });
+}
+\ No newline at end of file