diff --git a/addons/event/test/ui/onchange_events.yml b/addons/event/test/ui/onchange_events.yml
index da80d2d81ba..750d8112351 100644
--- a/addons/event/test/ui/onchange_events.yml
+++ b/addons/event/test/ui/onchange_events.yml
@@ -18,6 +18,12 @@
 -
   !python {model: event.event}: |
     self.do_team_change(cr, uid, ref("event_1"), ref("crm.section_sales_department"))
+-
+  I call onchange event on partner registration.
+-
+  !python {model: partner.event.registration}: |
+    context.update({'active_id': ref("base.res_partner_ericdubois0")})
+    self.onchange_event_id(cr, uid, 1, ref("event_1"), context=context)
 -
   Copy of event.
 -