# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""unit tests for selectors mechanism"""
from __future__ import with_statement
from operator import eq, lt, le, gt
from logilab.common.testlib import TestCase, unittest_main
from cubicweb import Binary
from cubicweb.devtools.testlib import CubicWebTC
from cubicweb.appobject import Selector, AndSelector, OrSelector
from cubicweb.selectors import (is_instance, adaptable, match_kwargs, match_user_groups,
multi_lines_rset, score_entity, is_in_state,
on_transition, rql_condition, relation_possible)
from cubicweb.web import action
class _1_(Selector):
def __call__(self, *args, **kwargs):
return 1
class _0_(Selector):
def __call__(self, *args, **kwargs):
return 0
def _2_(*args, **kwargs):
return 2
class SelectorsTC(TestCase):
def test_basic_and(self):
selector = _1_() & _1_()
self.assertEqual(selector(None), 2)
selector = _1_() & _0_()
self.assertEqual(selector(None), 0)
selector = _0_() & _1_()
self.assertEqual(selector(None), 0)
def test_basic_or(self):
selector = _1_() | _1_()
self.assertEqual(selector(None), 1)
selector = _1_() | _0_()
self.assertEqual(selector(None), 1)
selector = _0_() | _1_()
self.assertEqual(selector(None), 1)
selector = _0_() | _0_()
self.assertEqual(selector(None), 0)
def test_selector_and_function(self):
selector = _1_() & _2_
self.assertEqual(selector(None), 3)
selector = _2_ & _1_()
self.assertEqual(selector(None), 3)
def test_three_and(self):
selector = _1_() & _1_() & _1_()
self.assertEqual(selector(None), 3)
selector = _1_() & _0_() & _1_()
self.assertEqual(selector(None), 0)
selector = _0_() & _1_() & _1_()
self.assertEqual(selector(None), 0)
def test_three_or(self):
selector = _1_() | _1_() | _1_()
self.assertEqual(selector(None), 1)
selector = _1_() | _0_() | _1_()
self.assertEqual(selector(None), 1)
selector = _0_() | _1_() | _1_()
self.assertEqual(selector(None), 1)
selector = _0_() | _0_() | _0_()
self.assertEqual(selector(None), 0)
def test_composition(self):
selector = (_1_() & _1_()) & (_1_() & _1_())
self.assertTrue(isinstance(selector, AndSelector))
self.assertEqual(len(selector.selectors), 4)
self.assertEqual(selector(None), 4)
selector = (_1_() & _0_()) | (_1_() & _1_())
self.assertTrue(isinstance(selector, OrSelector))
self.assertEqual(len(selector.selectors), 2)
self.assertEqual(selector(None), 2)
def test_search_selectors(self):
sel = is_instance('something')
self.assertIs(sel.search_selector(is_instance), sel)
csel = AndSelector(sel, Selector())
self.assertIs(csel.search_selector(is_instance), sel)
csel = AndSelector(Selector(), sel)
self.assertIs(csel.search_selector(is_instance), sel)
self.assertIs(csel.search_selector((AndSelector, OrSelector)), csel)
self.assertIs(csel.search_selector((OrSelector, AndSelector)), csel)
self.assertIs(csel.search_selector((is_instance, score_entity)), sel)
self.assertIs(csel.search_selector((score_entity, is_instance)), sel)
def test_inplace_and(self):
selector = _1_()
selector &= _1_()
selector &= _1_()
self.assertEqual(selector(None), 3)
selector = _1_()
selector &= _0_()
selector &= _1_()
self.assertEqual(selector(None), 0)
selector = _0_()
selector &= _1_()
selector &= _1_()
self.assertEqual(selector(None), 0)
selector = _0_()
selector &= _0_()
selector &= _0_()
self.assertEqual(selector(None), 0)
def test_inplace_or(self):
selector = _1_()
selector |= _1_()
selector |= _1_()
self.assertEqual(selector(None), 1)
selector = _1_()
selector |= _0_()
selector |= _1_()
self.assertEqual(selector(None), 1)
selector = _0_()
selector |= _1_()
selector |= _1_()
self.assertEqual(selector(None), 1)
selector = _0_()
selector |= _0_()
selector |= _0_()
self.assertEqual(selector(None), 0)
class ImplementsSelectorTC(CubicWebTC):
def test_etype_priority(self):
req = self.request()
f = req.create_entity('File', data_name=u'hop.txt', data=Binary('hop'))
rset = f.as_rset()
anyscore = is_instance('Any')(f.__class__, req, rset=rset)
idownscore = adaptable('IDownloadable')(f.__class__, req, rset=rset)
self.assertTrue(idownscore > anyscore, (idownscore, anyscore))
filescore = is_instance('File')(f.__class__, req, rset=rset)
self.assertTrue(filescore > idownscore, (filescore, idownscore))
def test_etype_inheritance_no_yams_inheritance(self):
cls = self.vreg['etypes'].etype_class('Personne')
self.assertFalse(is_instance('Societe').score_class(cls, self.request()))
def test_yams_inheritance(self):
cls = self.vreg['etypes'].etype_class('Transition')
self.assertEqual(is_instance('BaseTransition').score_class(cls, self.request()),
3)
def test_outer_join(self):
req = self.request()
rset = req.execute('Any U,B WHERE B? bookmarked_by U, U login "anon"')
self.assertEqual(is_instance('Bookmark')(None, req, rset=rset, row=0, col=1),
0)
class WorkflowSelectorTC(CubicWebTC):
def _commit(self):
self.commit()
self.wf_entity.cw_clear_all_caches()
def setup_database(self):
wf = self.shell().add_workflow("wf_test", 'StateFull', default=True)
created = wf.add_state('created', initial=True)
validated = wf.add_state('validated')
abandoned = wf.add_state('abandoned')
wf.add_transition('validate', created, validated, ('managers',))
wf.add_transition('forsake', (created, validated,), abandoned, ('managers',))
def setUp(self):
super(WorkflowSelectorTC, self).setUp()
self.req = self.request()
self.wf_entity = self.req.create_entity('StateFull', name=u'')
self.rset = self.wf_entity.as_rset()
self.adapter = self.wf_entity.cw_adapt_to('IWorkflowable')
self._commit()
self.assertEqual(self.adapter.state, 'created')
# enable debug mode to state/transition validation on the fly
self.vreg.config.debugmode = True
def tearDown(self):
self.vreg.config.debugmode = False
super(WorkflowSelectorTC, self).tearDown()
def test_is_in_state(self):
for state in ('created', 'validated', 'abandoned'):
selector = is_in_state(state)
self.assertEqual(selector(None, self.req, rset=self.rset),
state=="created")
self.adapter.fire_transition('validate')
self._commit()
self.assertEqual(self.adapter.state, 'validated')
selector = is_in_state('created')
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
selector = is_in_state('validated')
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
selector = is_in_state('validated', 'abandoned')
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
selector = is_in_state('abandoned')
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
self.adapter.fire_transition('forsake')
self._commit()
self.assertEqual(self.adapter.state, 'abandoned')
selector = is_in_state('created')
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
selector = is_in_state('validated')
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
selector = is_in_state('validated', 'abandoned')
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
self.assertEqual(self.adapter.state, 'abandoned')
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
def test_is_in_state_unvalid_names(self):
selector = is_in_state("unknown")
with self.assertRaises(ValueError) as cm:
selector(None, self.req, rset=self.rset)
self.assertEqual(str(cm.exception),
"wf_test: unknown state(s): unknown")
selector = is_in_state("weird", "unknown", "created", "weird")
with self.assertRaises(ValueError) as cm:
selector(None, self.req, rset=self.rset)
self.assertEqual(str(cm.exception),
"wf_test: unknown state(s): unknown,weird")
def test_on_transition(self):
for transition in ('validate', 'forsake'):
selector = on_transition(transition)
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
self.adapter.fire_transition('validate')
self._commit()
self.assertEqual(self.adapter.state, 'validated')
selector = on_transition("validate")
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
selector = on_transition("validate", "forsake")
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
selector = on_transition("forsake")
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
self.adapter.fire_transition('forsake')
self._commit()
self.assertEqual(self.adapter.state, 'abandoned')
selector = on_transition("validate")
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
selector = on_transition("validate", "forsake")
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
selector = on_transition("forsake")
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
def test_on_transition_unvalid_names(self):
selector = on_transition("unknown")
with self.assertRaises(ValueError) as cm:
selector(None, self.req, rset=self.rset)
self.assertEqual(str(cm.exception),
"wf_test: unknown transition(s): unknown")
selector = on_transition("weird", "unknown", "validate", "weird")
with self.assertRaises(ValueError) as cm:
selector(None, self.req, rset=self.rset)
self.assertEqual(str(cm.exception),
"wf_test: unknown transition(s): unknown,weird")
def test_on_transition_with_no_effect(self):
"""selector will not be triggered with `change_state()`"""
self.adapter.change_state('validated')
self._commit()
self.assertEqual(self.adapter.state, 'validated')
selector = on_transition("validate")
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
selector = on_transition("validate", "forsake")
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
selector = on_transition("forsake")
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
class RelationPossibleTC(CubicWebTC):
def test_rqlst_1(self):
req = self.request()
selector = relation_possible('in_group')
select = self.vreg.parse(req, 'Any X WHERE X is CWUser').children[0]
score = selector(None, req, rset=1,
select=select, filtered_variable=select.defined_vars['X'])
self.assertEqual(score, 1)
def test_rqlst_2(self):
req = self.request()
selector = relation_possible('in_group')
select = self.vreg.parse(req, 'Any 1, COUNT(X) WHERE X is CWUser, X creation_date XD, '
'Y creation_date YD, Y is CWGroup '
'HAVING DAY(XD)=DAY(YD)').children[0]
score = selector(None, req, rset=1,
select=select, filtered_variable=select.defined_vars['X'])
self.assertEqual(score, 1)
class MatchUserGroupsTC(CubicWebTC):
def test_owners_group(self):
"""tests usage of 'owners' group with match_user_group"""
class SomeAction(action.Action):
__regid__ = 'yo'
category = 'foo'
__select__ = match_user_groups('owners')
self.vreg._loadedmods[__name__] = {}
self.vreg.register(SomeAction)
SomeAction.__registered__(self.vreg['actions'])
self.assertTrue(SomeAction in self.vreg['actions']['yo'], self.vreg['actions'])
try:
# login as a simple user
req = self.request()
self.create_user(req, 'john')
self.login('john')
# it should not be possible to use SomeAction not owned objects
req = self.request()
rset = req.execute('Any G WHERE G is CWGroup, G name "managers"')
self.assertFalse('yo' in dict(self.pactions(req, rset)))
# insert a new card, and check that we can use SomeAction on our object
self.execute('INSERT Card C: C title "zoubidou"')
self.commit()
req = self.request()
rset = req.execute('Card C WHERE C title "zoubidou"')
self.assertTrue('yo' in dict(self.pactions(req, rset)), self.pactions(req, rset))
# make sure even managers can't use the action
self.restore_connection()
req = self.request()
rset = req.execute('Card C WHERE C title "zoubidou"')
self.assertFalse('yo' in dict(self.pactions(req, rset)))
finally:
del self.vreg[SomeAction.__registry__][SomeAction.__regid__]
class MultiLinesRsetSelectorTC(CubicWebTC):
def setUp(self):
super(MultiLinesRsetSelectorTC, self).setUp()
self.req = self.request()
self.req.execute('INSERT CWGroup G: G name "group1"')
self.req.execute('INSERT CWGroup G: G name "group2"')
self.commit()
self.rset = self.req.execute('Any G WHERE G is CWGroup')
def test_default_op_in_selector(self):
expected = len(self.rset)
selector = multi_lines_rset(expected)
self.assertEqual(selector(None, self.req, rset=self.rset), 1)
self.assertEqual(selector(None, self.req, None), 0)
selector = multi_lines_rset(expected + 1)
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
self.assertEqual(selector(None, self.req, None), 0)
selector = multi_lines_rset(expected - 1)
self.assertEqual(selector(None, self.req, rset=self.rset), 0)
self.assertEqual(selector(None, self.req, None), 0)
def test_without_rset(self):
expected = len(self.rset)
selector = multi_lines_rset(expected)
self.assertEqual(selector(None, self.req, None), 0)
selector = multi_lines_rset(expected + 1)
self.assertEqual(selector(None, self.req, None), 0)
selector = multi_lines_rset(expected - 1)
self.assertEqual(selector(None, self.req, None), 0)
def test_with_operators(self):
expected = len(self.rset)
# Format 'expected', 'operator', 'assert'
testdata = (( expected, eq, 1),
( expected+1, eq, 0),
( expected-1, eq, 0),
( expected, le, 1),
( expected+1, le, 1),
( expected-1, le, 0),
( expected-1, gt, 1),
( expected, gt, 0),
( expected+1, gt, 0),
( expected+1, lt, 1),
( expected, lt, 0),
( expected-1, lt, 0))
for (expected, operator, assertion) in testdata:
selector = multi_lines_rset(expected, operator)
yield self.assertEqual, selector(None, self.req, rset=self.rset), assertion
def test_match_kwargs_default(self):
selector = match_kwargs( set( ('a', 'b') ) )
self.assertEqual(selector(None, None, a=1, b=2), 2)
self.assertEqual(selector(None, None, a=1), 0)
self.assertEqual(selector(None, None, c=1), 0)
self.assertEqual(selector(None, None, a=1, c=1), 0)
def test_match_kwargs_any(self):
selector = match_kwargs( set( ('a', 'b') ), mode='any')
self.assertEqual(selector(None, None, a=1, b=2), 2)
self.assertEqual(selector(None, None, a=1), 1)
self.assertEqual(selector(None, None, c=1), 0)
self.assertEqual(selector(None, None, a=1, c=1), 1)
class ScoreEntitySelectorTC(CubicWebTC):
def test_intscore_entity_selector(self):
req = self.request()
rset = req.execute('Any E WHERE E eid 1')
selector = score_entity(lambda x: None)
self.assertEqual(selector(None, req, rset=rset), 0)
selector = score_entity(lambda x: "something")
self.assertEqual(selector(None, req, rset=rset), 1)
selector = score_entity(lambda x: object)
self.assertEqual(selector(None, req, rset=rset), 1)
rset = req.execute('Any G LIMIT 2 WHERE G is CWGroup')
selector = score_entity(lambda x: 10)
self.assertEqual(selector(None, req, rset=rset), 20)
selector = score_entity(lambda x: 10, mode='any')
self.assertEqual(selector(None, req, rset=rset), 10)
def test_rql_condition_entity(self):
req = self.request()
selector = rql_condition('X identity U')
rset = req.user.as_rset()
self.assertEqual(selector(None, req, rset=rset), 1)
self.assertEqual(selector(None, req, entity=req.user), 1)
self.assertEqual(selector(None, req), 0)
def test_rql_condition_user(self):
req = self.request()
selector = rql_condition('U login "admin"', user_condition=True)
self.assertEqual(selector(None, req), 1)
selector = rql_condition('U login "toto"', user_condition=True)
self.assertEqual(selector(None, req), 0)
if __name__ == '__main__':
unittest_main()