diff --git a/test/validators.js b/test/validators.js
index acb5ac226..968bb6db9 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -6719,6 +6719,14 @@ describe('Validators', () => {
           '22040-020',
           '39400-152',
         ],
+        invalid: [
+          '79800A12',
+          '13165-00',
+          '38175-abc',
+          '81470-2763',
+          '78908',
+          '13010|111',
+        ],
       },
       {
         locale: 'NZ',