1 files changed, 57 insertions, 0 deletions
diff --git a/toolkit/components/places/tests/unit/test_bookmark_catobs.js b/toolkit/components/places/tests/unit/test_bookmark_catobs.js
new file mode 100644
index 000000000..e2b589090
--- /dev/null
+++ b/toolkit/components/places/tests/unit/test_bookmark_catobs.js
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  run_next_test()
+}
+
+add_task(function* test_observers() {
+  do_load_manifest("nsDummyObserver.manifest");
+
+  let dummyCreated = false;
+  let dummyReceivedOnItemAdded = false;
+
+  Services.obs.addObserver(function created() {
+    Services.obs.removeObserver(created, "dummy-observer-created");
+    dummyCreated = true;
+  }, "dummy-observer-created", false);
+  Services.obs.addObserver(function added() {
+    Services.obs.removeObserver(added, "dummy-observer-item-added");
+    dummyReceivedOnItemAdded = true;
+  }, "dummy-observer-item-added", false);
+
+  let initialObservers = PlacesUtils.bookmarks.getObservers();
+
+  // Add a common observer, it should be invoked after the category observer.
+  let notificationsPromised = new Promise((resolve, reject) => {
+    PlacesUtils.bookmarks.addObserver( {
+      __proto__: NavBookmarkObserver.prototype,
+      onItemAdded() {
+        let observers = PlacesUtils.bookmarks.getObservers();
+        Assert.equal(observers.length, initialObservers.length + 1);
+
+        // Check the common observer is the last one.
+        for (let i = 0; i < initialObservers.length; ++i) {
+          Assert.equal(initialObservers[i], observers[i]);
+        }
+
+        PlacesUtils.bookmarks.removeObserver(this);
+        observers = PlacesUtils.bookmarks.getObservers();
+        Assert.equal(observers.length, initialObservers.length);
+
+        // Check the category observer has been invoked before this one.
+        Assert.ok(dummyCreated);
+        Assert.ok(dummyReceivedOnItemAdded);
+        resolve();
+      }
+    }, false);
+  });
+
+  // Add a bookmark
+  PlacesUtils.bookmarks.insertBookmark(PlacesUtils.unfiledBookmarksFolderId,
+                                       uri("http://typed.mozilla.org"),
+                                       PlacesUtils.bookmarks.DEFAULT_INDEX,
+                                       "bookmark");
+
+  yield notificationsPromised;
+});