Catch AttributeError from reverse in check

Author: scott-8

debug_toolbar/apps.py

@@ -251,9 +251,10 @@ def debug_toolbar_installed_when_running_tests_check(app_configs, **kwargs):
     )
     try:
         # Check if the toolbar's urls are installed
+        # reverse can raise AttributeError is ROOT_URLCONF is not defined
         reverse(f"{APP_NAME}:render_panel")
         toolbar_urls_installed = True
-    except NoReverseMatch:
+    except (NoReverseMatch, AttributeError):
         toolbar_urls_installed = False
 
     # If the user is using the default SHOW_TOOLBAR_CALLBACK,

tests/test_checks.py

@@ -304,6 +304,12 @@ def test_debug_toolbar_installed_when_running_tests(self, reverse):
                     else:
                         self.assertEqual(len(errors), 0)
 
+    @patch("debug_toolbar.apps.reverse")
+    def test_temp(self, reverse):
+        reverse.side_effect = AttributeError()
+        errors = debug_toolbar_installed_when_running_tests_check(None)
+        assert not errors
+
     @override_settings(
         DEBUG_TOOLBAR_CONFIG={
             "OBSERVE_REQUEST_CALLBACK": lambda request: False,