devtools/fake.py
author Sandrine Ribeau <sandrine.ribeau@logilab.fr>
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[doc] Change structure to make it more readable.
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"""Fake objects to ease testing of cubicweb without a fully working environment
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:organization: Logilab
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:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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"""
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__docformat__ = "restructuredtext en"
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from logilab.common.testlib import mock_object as Mock
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from logilab.common.adbh import get_adv_func_helper
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from indexer import get_indexer
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from cubicweb import RequestSessionMixIn
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from cubicweb.web.request import CubicWebRequestBase
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from cubicweb.devtools import BASE_URL, BaseApptestConfiguration
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class FakeConfig(dict, BaseApptestConfiguration):
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    translations = {}
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    apphome = None
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    def __init__(self, appid='data', apphome=None, cubes=()):
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        self.appid = appid
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        self.apphome = apphome
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        self._cubes = cubes
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        self['auth-mode'] = 'cookie'
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        self['uid'] = None 
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        self['base-url'] = BASE_URL
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        self['rql-cache-size'] = 100
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    def cubes(self, expand=False):
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        return self._cubes
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    def sources(self):
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        return {}
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class FakeVReg(object):
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    def __init__(self, schema=None, config=None):
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        self.schema = schema
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        self.config = config or FakeConfig()
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        self.properties = {'ui.encoding': 'UTF8',
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                           'ui.language': 'en',
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                           }
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    def property_value(self, key):
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        return self.properties[key]
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    _registries = {
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        'controllers' : [Mock(id='view'), Mock(id='login'),
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                         Mock(id='logout'), Mock(id='edit')],
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        'views' : [Mock(id='primary'), Mock(id='secondary'),
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                         Mock(id='oneline'), Mock(id='list')],
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        }
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    def registry_objects(self, name, oid=None):
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        return self._registries[name]
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    def etype_class(self, etype):
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        class Entity(dict):
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            e_schema = self.schema[etype]
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            def __init__(self, session, eid, row=0, col=0):
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                self.req = session
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                self.eid = eid
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                self.row, self.col = row, col
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            def set_eid(self, eid):
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                self.eid = self['eid'] = eid
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        return Entity
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class FakeRequest(CubicWebRequestBase):
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    """test implementation of an cubicweb request object"""
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    def __init__(self, *args, **kwargs):
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        if not (args or 'vreg' in kwargs):
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            kwargs['vreg'] = FakeVReg()
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        kwargs['https'] = False
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        self._url = kwargs.pop('url', 'view?rql=Blop&vid=blop')
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        super(FakeRequest, self).__init__(*args, **kwargs)
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        self._session_data = {}
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        self._headers = {}
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    def header_accept_language(self):
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        """returns an ordered list of preferred languages"""
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        return ('en',)
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    def header_if_modified_since(self):
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        return None
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    def base_url(self):
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        """return the root url of the application"""
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        return BASE_URL
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    def relative_path(self, includeparams=True):
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        """return the normalized path of the request (ie at least relative
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        to the application's root, but some other normalization may be needed
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        so that the returned path may be used to compare to generated urls
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        """
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        if self._url.startswith(BASE_URL):
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            url = self._url[len(BASE_URL):]
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        else:
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            url = self._url
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        if includeparams:
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            return url
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        return url.split('?', 1)[0]
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    def set_content_type(self, content_type, filename=None, encoding=None):
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        """set output content type for this request. An optional filename
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        may be given
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        """
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        pass
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    def set_header(self, header, value):
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        """set an output HTTP header"""
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        pass
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    def add_header(self, header, value):
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        """set an output HTTP header"""
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        pass
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    def remove_header(self, header):
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        """remove an output HTTP header"""
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        pass
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    def get_header(self, header, default=None):
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        """return the value associated with the given input header,
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        raise KeyError if the header is not set
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        """
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        return self._headers.get(header, default)
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    def set_cookie(self, cookie, key, maxage=300):
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        """set / update a cookie key
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        by default, cookie will be available for the next 5 minutes
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        """
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        pass
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    def remove_cookie(self, cookie, key):
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        """remove a cookie by expiring it"""
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        pass
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    def validate_cache(self):
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        pass
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    # session compatibility (in some test are using this class to test server
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    # side views...)
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    def actual_session(self):
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        """return the original parent session if any, else self"""
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        return self
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    def unsafe_execute(self, *args, **kwargs):
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        """return the original parent session if any, else self"""
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        kwargs.pop('propagate', None)
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        return self.execute(*args, **kwargs)
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class FakeUser(object):
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    login = 'toto'
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    eid = 0
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    def in_groups(self, groups):
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        return True
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class FakeSession(RequestSessionMixIn):
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    def __init__(self, repo=None, user=None):
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        self.repo = repo
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        self.vreg = getattr(self.repo, 'vreg', FakeVReg())
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        self.pool = FakePool()
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        self.user = user or FakeUser()
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        self.is_internal_session = False
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        self.is_super_session = self.user.eid == -1
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        self._query_data = {}
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    def execute(self, *args):
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        pass
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    def commit(self, *args):
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        self._query_data.clear()
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    def close(self, *args):
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        pass
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    def system_sql(self, sql, args=None):
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        pass
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    def decorate_rset(self, rset, propagate=False):
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        rset.vreg = self.vreg
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        rset.req = self
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        return rset
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    def set_entity_cache(self, entity):
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        pass
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class FakeRepo(object):
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    querier = None
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    def __init__(self, schema, vreg=None, config=None):
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        self.extids = {}
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        self.eids = {}
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        self._count = 0
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        self.schema = schema
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        self.vreg = vreg or FakeVReg()
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        self.config = config or FakeConfig()
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    def internal_session(self):
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        return FakeSession(self)
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    def extid2eid(self, source, extid, etype, session, insert=True):
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        try:
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            return self.extids[extid]
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        except KeyError:
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            if not insert:
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                return None
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            self._count += 1
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            eid = self._count
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            entity = source.before_entity_insertion(session, extid, etype, eid)
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            self.extids[extid] = eid
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            self.eids[eid] = extid
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            source.after_entity_insertion(session, extid, entity)
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            return eid
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    def eid2extid(self, source, eid, session=None):
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        return self.eids[eid]
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class FakeSource(object):
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    dbhelper = get_adv_func_helper('sqlite')
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    indexer = get_indexer('sqlite', 'UTF8')
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    dbhelper.fti_uid_attr = indexer.uid_attr
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    dbhelper.fti_table = indexer.table
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    dbhelper.fti_restriction_sql = indexer.restriction_sql
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    dbhelper.fti_need_distinct_query = indexer.need_distinct
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    def __init__(self, uri):
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        self.uri = uri
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class FakePool(object):
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    def source(self, uri):
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        return FakeSource(uri)
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# commented until proven to be useful
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## from logging import getLogger
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## from cubicweb import set_log_methods
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## for cls in (FakeConfig, FakeVReg, FakeRequest, FakeSession, FakeRepo,
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##             FakeSource, FakePool):
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##     set_log_methods(cls, getLogger('fake'))