Ensure render_widget works if a widget has no 'get_context_data', and fix dashboard tests

django/website/dashboard/templatetags/render_widget.py

@@ -51,6 +51,8 @@ def render_widget(widget_instance):
         # Get context
         try:
             context = widget.get_context_data(**settings)
+        except AttributeError:
+            context = {}
         except Exception as e:
             logger.exception('Error while fetching widget context data: %s', e)
             template_name = 'dashboard/widget-error.html'

django/website/dashboard/tests/widget_tests.py

@@ -150,5 +150,5 @@ class WidgetPoolTestCase(TestCase):
                 mock, 'template_name'
             )
         self.assertEqual(
-            template_name, 'dashboard/widget-missing-template.html'
+            template_name, 'dashboard/widget-error.html'
         )