diff --git a/field_validator/test/validator.yml b/field_validator/test/validator.yml
index 0d3ed8464..f365f9c2d 100644
--- a/field_validator/test/validator.yml
+++ b/field_validator/test/validator.yml
@@ -2,6 +2,11 @@
     Try fields validator
 -
     !python {model: ir.model.field}: |
+    	from nose.tools import *
+   		from openerp.exceptions import Warning
         field_ids = self.search(cr, uid, [('name', '=', 'email'), ('model', '=', 'res.partner')]
         assert len(field_ids) == 1, 'There must be 1 email field'
         self.write(cr, uid, field_ids, {'regex_validator': r'\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b'}
+        partner_id = self.pool.get('res.partner').create(cr, uid, {'name': 'test_partner'})
+        with assert_raises(Error):
+        	self.pool.get('res.partner').write(cr, uid, partner_id, {'email': 'jhon'})