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--- a/Allura/allura/tests/unit/test_project.py
+++ b/Allura/allura/tests/unit/test_project.py
@@ -28,3 +28,28 @@
         actual = [(e.label, e.url, len(e.matching_urls))
                 for e in p.grouped_navbar_entries()]
         self.assertEqual(expected, actual)
+
+    def test_grouped_navbar_threshold(self):
+        p = M.Project()
+        sitemap_entries = [
+            SitemapEntry('bugs', url='bugs url', tool_name='Tickets'),
+            SitemapEntry('wiki', url='wiki url', tool_name='Wiki'),
+            SitemapEntry('discuss', url='discuss url', tool_name='Discussion'),
+            SitemapEntry('subproject', url='subproject url'),
+            SitemapEntry('features', url='features url', tool_name='Tickets'),
+            SitemapEntry('help', url='help url', tool_name='Discussion'),
+            SitemapEntry('support reqs', url='support url', tool_name='Tickets'),
+        ]
+        p.url = Mock(return_value='proj_url/')
+        p.sitemap = Mock(return_value=sitemap_entries)
+        p.tool_data['allura'] = {'grouping_threshold': 2}
+        expected = [
+            ('Tickets', 'proj_url/_list/tickets', 3),
+            ('wiki', 'wiki url', 0),
+            ('discuss', 'discuss url', 0),
+            ('subproject', 'subproject url', 0),
+            ('help', 'help url', 0),
+        ]
+        actual = [(e.label, e.url, len(e.matching_urls))
+                for e in p.grouped_navbar_entries()]
+        self.assertEqual(expected, actual)