fix: show installed python packages on appinfo page

tests/views/test_master.py

@@ -424,7 +424,10 @@ class TestMasterView(WebTestCase):
                             url_prefix='/appinfo',
                             creatable=False):
             view = master.MasterView(self.request)
-            response = view.render_to_response('index', {})
+            response = view.render_to_response('index', {
+                # nb. grid is required for this template
+                'grid': MagicMock(),
+            })
             self.assertIsInstance(response, Response)
 
         # bad template name causes error

tests/views/test_settings.py

@@ -18,6 +18,19 @@ class TestAppInfoView(WebTestCase):
     def make_view(self):
         return mod.AppInfoView(self.request)
 
+    def test_get_grid_data(self):
+        view = self.make_view()
+
+        # empty data by default
+        data = view.get_grid_data()
+        self.assertEqual(data, [])
+
+        # 'partial' request returns data
+        self.request.GET = {'partial': '1'}
+        data = view.get_grid_data()
+        self.assertIsInstance(data, list)
+        self.assertTrue(data)
+
     def test_index(self):
         # sanity/coverage check
         view = self.make_view()