testXHTML: use the nu validator by default

product/ERP5/tests/testXHTML.py

@@ -813,10 +813,9 @@ def addTestMethodDynamically(test_class, validator, target_business_templates):
                        tested_portal_type_list=tested_portal_type_list)
 
 
-# Two validators are available : tidy and the w3c validator
-# It's hightly recommanded to use the w3c validator because tidy dont show
-# all errors and show more warnings that there is.
-validator_to_use = 'w3c'
+# Three validators are available : nu, tidy and the w3c validator
+# It's hightly recommanded to use the nu validator which validates html5
+validator_to_use = 'nu'
 show_warnings = True
 
 validator = None

[Jérome Perrin]

@romain this is nice 👍

I marked #20171122-165CD as resolved, let me know if it was too early.

[Romain Courteaud]

@jerome thx. Bug can be marked as resolved, as no error is reported since the switch has been done.

Please also not that if for some reasons 'w3c' is used again, it will now loudly fail, instead of hiding error.

[Jérome Perrin]

Ah yes, this was a good example of how hiding error caused us troubles.