Fixed #29419 -- Allowed permissioning of admin actions.

tests/modeladmin/test_checks.py

@@ -1290,3 +1290,22 @@ class AutocompleteFieldsTests(CheckTestCase):
         site = AdminSite()
         site.register(User, UserAdmin)
         self.assertIsValid(Admin, ValidationTestModel, admin_site=site)
+
+
+class ActionsCheckTests(CheckTestCase):
+
+    def test_custom_permissions_require_matching_has_method(self):
+        def custom_permission_action(modeladmin, request, queryset):
+            pass
+
+        custom_permission_action.allowed_permissions = ('custom',)
+
+        class BandAdmin(ModelAdmin):
+            actions = (custom_permission_action,)
+
+        self.assertIsInvalid(
+            BandAdmin, Band,
+            'BandAdmin must define a has_custom_permission() method for the '
+            'custom_permission_action action.',
+            id='admin.E129',
+        )