How to use the cornice.resource.add_resource function in cornice

def setUp(self):
        from pyramid.renderers import JSONP

        self.config = testing.setUp()
        self.config.add_renderer('jsonp', JSONP(param_name='callback'))
        self.config.include("cornice")
        self.authz_policy = ACLAuthorizationPolicy()
        self.config.set_authorization_policy(self.authz_policy)

        self.authn_policy = AuthTktAuthenticationPolicy('$3kr1t')
        self.config.set_authentication_policy(self.authn_policy)

        add_view(ThingImp.collection_get, permission='read')
        thing_resource = add_resource(
            ThingImp, collection_path='/thing', path='/thing/{id}',
            name='thing_service')

        add_view(UserImp.get, renderer='json')
        add_view(UserImp.get, renderer='jsonp', accept='application/javascript')
        add_view(UserImp.collection_post, renderer='json', accept='application/json')
        user_resource = add_resource(
            UserImp, collection_path='/users', path='/users/{id}',
            name='user_service', factory=dummy_factory)

        self.config.add_cornice_resource(thing_resource)
        self.config.add_cornice_resource(user_resource)
        self.app = TestApp(CatchErrors(self.config.make_wsgi_app()))

def setUp(self):
        from pyramid.renderers import JSONP
        self.config = testing.setUp(autocommit=False)
        self.config.add_renderer('jsonp', JSONP(param_name='callback'))
        self.config.include("cornice")

        add_view(UserImp.get, renderer='json')
        # pyramid does not allow having 2 views with same request conditions
        add_view(UserImp.get, renderer='jsonp', accept='application/javascript')
        add_view(UserImp.collection_post, renderer='json', accept='application/json')
        user_resource = add_resource(
            UserImp, collection_path='/users', path='/users/{id}',
            name='user_service', factory=dummy_factory)

        self.config.add_cornice_resource(user_resource)
        self.app = TestApp(CatchErrors(self.config.make_wsgi_app()))

def test_path_clash(self, mocked_warn):
        class BadThingImp(object):
            def __init__(self, request, context=None):
                pass
        add_resource(BadThingImp, collection_path='/badthing/{id}',
                     path='/badthing/{id}',
                     name='bad_thing_service')

        msg = "Warning: collection_path and path are not distinct."
        mocked_warn.assert_called_with(msg)

"""Add related_processes resource basing on some parent resource

        :param configurator: pyramid configurator.

        :param base_path: path for the resource.

        :param factory: factory method from the corresponding traversal module.

    """
    postfix = '/related_processes/{relatedProcess_id}'
    collection_postfix = '/related_processes'

    rp_path = base_path + postfix
    rp_collection_path = base_path + collection_postfix

    rp_res = resource.add_resource(
        resource_class,
        collection_path=rp_collection_path,
        path=rp_path,
        factory=factory
    )
    configurator.add_cornice_resource(rp_res)