Removed need for hasattr(check, 'tags') in CheckRegistry.

It was needed to pass tests because registered checks weren't properly mocked.

1 files changed, 6 insertions, 2 deletions

diff --git a/django/test/utils.py b/django/test/utils.py
index bf849ae0d1..e1cca58b27 100644
--- a/django/test/utils.py
+++ b/django/test/utils.py
@@ -499,10 +499,14 @@ class override_system_checks(TestContextDecorator):
 
     def enable(self):
         self.old_checks = self.registry.registered_checks
-        self.registry.registered_checks = self.new_checks
+        self.registry.registered_checks = []
+        for check in self.new_checks:
+            self.registry.register(check, *getattr(check, 'tags', ()))
         self.old_deployment_checks = self.registry.deployment_checks
         if self.deployment_checks is not None:
-            self.registry.deployment_checks = self.deployment_checks
+            self.registry.deployment_checks = []
+            for check in self.deployment_checks:
+                self.registry.register(check, *getattr(check, 'tags', ()), deploy=True)
 
     def disable(self):
         self.registry.registered_checks = self.old_checks