diff --git a/test/model.js b/test/model.js
index 142857c8..3bb8ffe4 100644
--- a/test/model.js
+++ b/test/model.js
@@ -101,6 +101,9 @@ $(document).ready(function() {
     attrs = { 'foo': 1, 'bar': 2, 'baz': 3, 'id': 0 };
     a = new Backbone.Model(attrs);
     ok(!a.isNew(), "any defined ID is legal, including zero");
+    ok( new Backbone.Model({          }).isNew(), "is true when there is no id");
+    ok(!new Backbone.Model({ 'id': 2  }).isNew(), "is false for a positive integer");
+    ok(!new Backbone.Model({ 'id': -5 }).isNew(), "is false for a negative integer");
   });
 
   test("Model: get", function() {
diff --git a/test/router.js b/test/router.js
index 2186ba3b..2562b0c6 100644
--- a/test/router.js
+++ b/test/router.js
@@ -113,13 +113,4 @@ $(document).ready(function() {
     }, 10);
   });
 
-  asyncTest("Router: routes (hashbang)", 2, function() {
-    window.location.hash = '!search/news';
-    setTimeout(function() {
-      equals(router.query, 'news');
-      equals(router.page, undefined);
-      start();
-    }, 10);
-  });
-
 });