[devtools] CubicWebTC._check_html may have to deal with unicode or bytes
If called with template=None, CubicWebTC.view will not go through
main-template, and return the unicode data from the view directly
instead of encoded data.
from datetime import datetime
for rtype in ('cw_support', 'cw_dont_cross', 'cw_may_cross'):
drop_relation_type(rtype)
add_entity_type('CWSourceSchemaConfig')
if not 'url' in schema['CWSource'].subjrels:
add_attribute('CWSource', 'url')
add_attribute('CWSource', 'parser')
add_attribute('CWSource', 'latest_retrieval')