cubicweb/test/unittest_rset.py
changeset 11057 0b59724cb3f2
parent 10997 da712d3f0601
child 11169 c1eb5a676c80
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/test/unittest_rset.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,594 @@
+# coding: utf-8
+# copyright 2003-2014 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 module cubicweb.utils"""
+
+from six import string_types
+from six.moves import cPickle as pickle
+from six.moves.urllib.parse import urlsplit
+
+from rql import parse
+
+from logilab.common.testlib import TestCase, unittest_main, mock_object
+
+from cubicweb.devtools.testlib import CubicWebTC
+from cubicweb.rset import NotAnEntity, ResultSet, attr_desc_iterator
+from cubicweb import NoResultError, MultipleResultsError
+
+
+def pprelcachedict(d):
+    res = {}
+    for k, (rset, related) in d.items():
+        res[k] = sorted(v.eid for v in related)
+    return sorted(res.items())
+
+
+class AttrDescIteratorTC(TestCase):
+    """TestCase for cubicweb.rset.attr_desc_iterator"""
+
+    def test_relations_description(self):
+        """tests relations_description() function"""
+        queries = {
+            'Any U,L,M where U is CWUser, U login L, U mail M' : [(1, 'login', 'subject'), (2, 'mail', 'subject')],
+            'Any U,L,M where U is CWUser, L is Foo, U mail M' : [(2, 'mail', 'subject')],
+            'Any C,P where C is Company, C employs P' : [(1, 'employs', 'subject')],
+            'Any C,P where C is Company, P employed_by P' : [],
+            'Any C where C is Company, C employs P' : [],
+            }
+        for rql, relations in queries.items():
+            result = list(attr_desc_iterator(parse(rql).children[0], 0, 0))
+            self.assertEqual((rql, result), (rql, relations))
+
+    def test_relations_description_indexed(self):
+        """tests relations_description() function"""
+        queries = {
+            'Any C,U,P,L,M where C is Company, C employs P, U is CWUser, U login L, U mail M' :
+            {0: [(2,'employs', 'subject')], 1: [(3,'login', 'subject'), (4,'mail', 'subject')]},
+            }
+        for rql, results in queries.items():
+            for idx, relations in results.items():
+                result = list(attr_desc_iterator(parse(rql).children[0], idx, idx))
+                self.assertEqual(result, relations)
+
+    def test_subquery_callfunc(self):
+        rql = ('Any A,B,C,COUNT(D) GROUPBY A,B,C WITH A,B,C,D BEING '
+               '(Any YEAR(CD), MONTH(CD), S, X WHERE X is CWUser, X creation_date CD, X in_state S)')
+        rqlst = parse(rql)
+        select, col = rqlst.locate_subquery(2, 'CWUser', None)
+        result = list(attr_desc_iterator(select, col, 2))
+        self.assertEqual(result, [])
+
+    def test_subquery_callfunc_2(self):
+        rql = ('Any X,S,L WHERE X in_state S WITH X, L BEING (Any X,MAX(L) GROUPBY X WHERE X is CWUser, T wf_info_for X, T creation_date L)')
+        rqlst = parse(rql)
+        select, col = rqlst.locate_subquery(0, 'CWUser', None)
+        result = list(attr_desc_iterator(select, col, 0))
+        self.assertEqual(result, [(1, 'in_state', 'subject')])
+
+
+class ResultSetTC(CubicWebTC):
+
+    def setUp(self):
+        super(ResultSetTC, self).setUp()
+        self.rset = ResultSet([[12, 'adim'], [13, 'syt']],
+                              'Any U,L where U is CWUser, U login L',
+                              description=[['CWUser', 'String'], ['Bar', 'String']])
+        self.rset.req = mock_object(vreg=self.vreg)
+
+    def compare_urls(self, url1, url2):
+        info1 = urlsplit(url1)
+        info2 = urlsplit(url2)
+        self.assertEqual(info1[:3], info2[:3])
+        if info1[3] != info2[3]:
+            params1 = dict(pair.split('=') for pair in info1[3].split('&'))
+            params2 = dict(pair.split('=') for pair in info1[3].split('&'))
+            self.assertDictEqual(params1, params2)
+
+    def test_pickle(self):
+        del self.rset.req
+        rs2 = pickle.loads(pickle.dumps(self.rset))
+        self.assertEqual(self.rset.rows, rs2.rows)
+        self.assertEqual(self.rset.rowcount, rs2.rowcount)
+        self.assertEqual(self.rset.rql, rs2.rql)
+        self.assertEqual(self.rset.description, rs2.description)
+
+    def test_build_url(self):
+        with self.admin_access.web_request() as req:
+            baseurl = req.base_url()
+            self.compare_urls(req.build_url('view', vid='foo', rql='yo'),
+                              '%sview?vid=foo&rql=yo' % baseurl)
+            self.compare_urls(req.build_url('view', _restpath='task/title/go'),
+                              '%stask/title/go' % baseurl)
+            #self.compare_urls(req.build_url('view', _restpath='/task/title/go'),
+            #                  '%stask/title/go' % baseurl)
+            # empty _restpath should not crash
+            self.compare_urls(req.build_url('view', _restpath=''), baseurl)
+            self.assertNotIn('https', req.build_url('view', vid='foo', rql='yo',
+                                                      __secure__=True))
+            try:
+                self.config.global_set_option('https-url', 'https://testing.fr/')
+                self.assertTrue('https', req.build_url('view', vid='foo', rql='yo',
+                                                         __secure__=True))
+                self.compare_urls(req.build_url('view', vid='foo', rql='yo',
+                                                __secure__=True),
+                                  '%sview?vid=foo&rql=yo' % req.base_url(secure=True))
+            finally:
+                self.config.global_set_option('https-url', None)
+
+
+    def test_build(self):
+        """test basic build of a ResultSet"""
+        rs = ResultSet([1,2,3], 'CWGroup X', description=['CWGroup', 'CWGroup', 'CWGroup'])
+        self.assertEqual(rs.rowcount, 3)
+        self.assertEqual(rs.rows, [1,2,3])
+        self.assertEqual(rs.description, ['CWGroup', 'CWGroup', 'CWGroup'])
+
+
+    def test_limit(self):
+        rs = ResultSet([[12000, 'adim'], [13000, 'syt'], [14000, 'nico']],
+                       'Any U,L where U is CWUser, U login L',
+                       description=[['CWUser', 'String']] * 3)
+        with self.admin_access.web_request() as req:
+            rs.req = req
+            rs.vreg = self.vreg
+            self.assertEqual(rs.limit(2).rows, [[12000, 'adim'], [13000, 'syt']])
+            rs2 = rs.limit(2, offset=1)
+            self.assertEqual(rs2.rows, [[13000, 'syt'], [14000, 'nico']])
+            self.assertEqual(rs2.get_entity(0, 0).cw_row, 0)
+            self.assertEqual(rs.limit(2, offset=2).rows, [[14000, 'nico']])
+            self.assertEqual(rs.limit(2, offset=3).rows, [])
+
+    def test_limit_2(self):
+        with self.admin_access.web_request() as req:
+            # drop user from cache for the sake of this test
+            req.drop_entity_cache(req.user.eid)
+            rs = req.execute('Any E,U WHERE E is CWEType, E created_by U')
+            # get entity on row 9. This will fill its created_by relation cache,
+            # with cwuser on row 9 as well
+            e1 = rs.get_entity(9, 0)
+            # get entity on row 10. This will fill its created_by relation cache,
+            # with cwuser built on row 9
+            e2 = rs.get_entity(10, 0)
+            # limit result set from row 10
+            rs.limit(1, 10, inplace=True)
+            # get back eid
+            e = rs.get_entity(0, 0)
+            self.assertTrue(e2 is e)
+            # rs.limit has properly removed cwuser for request cache, but it's
+            # still referenced by e/e2 relation cache
+            u = e.created_by[0]
+            # now ensure this doesn't trigger IndexError because cwuser.cw_row is 9
+            # while now rset has only one row
+            u.cw_rset[u.cw_row]
+
+    def test_filter(self):
+        rs = ResultSet([[12000, 'adim'], [13000, 'syt'], [14000, 'nico']],
+                       'Any U,L where U is CWUser, U login L',
+                       description=[['CWUser', 'String']] * 3)
+        with self.admin_access.web_request() as req:
+            rs.req = req
+            rs.vreg = self.vreg
+            def test_filter(entity):
+                return entity.login != 'nico'
+
+            rs2 = rs.filtered_rset(test_filter)
+            self.assertEqual(len(rs2), 2)
+            self.assertEqual([login for _, login in rs2], ['adim', 'syt'])
+            self.assertEqual(rs2.description, rs.description[1:])
+
+    def test_transform(self):
+        rs = ResultSet([[12, 'adim'], [13, 'syt'], [14, 'nico']],
+                       'Any U,L where U is CWUser, U login L',
+                       description=[['CWUser', 'String']] * 3)
+        with self.admin_access.web_request() as req:
+            rs.req = req
+            def test_transform(row, desc):
+                return row[1:], desc[1:]
+            rs2 = rs.transformed_rset(test_transform)
+
+            self.assertEqual(len(rs2), 3)
+            self.assertEqual(list(rs2), [['adim'],['syt'],['nico']])
+
+    def test_sort(self):
+        rs = ResultSet([[12000, 'adim'], [13000, 'syt'], [14000, 'nico']],
+                       'Any U,L where U is CWUser, U login L',
+                       description=[['CWUser', 'String']] * 3)
+        with self.admin_access.web_request() as req:
+            rs.req = req
+            rs.vreg = self.vreg
+
+            rs2 = rs.sorted_rset(lambda e:e.cw_attr_cache['login'])
+            self.assertEqual(len(rs2), 3)
+            self.assertEqual([login for _, login in rs2], ['adim', 'nico', 'syt'])
+            # make sure rs is unchanged
+            self.assertEqual([login for _, login in rs], ['adim', 'syt', 'nico'])
+
+            rs2 = rs.sorted_rset(lambda e:e.cw_attr_cache['login'], reverse=True)
+            self.assertEqual(len(rs2), 3)
+            self.assertEqual([login for _, login in rs2], ['syt', 'nico', 'adim'])
+            # make sure rs is unchanged
+            self.assertEqual([login for _, login in rs], ['adim', 'syt', 'nico'])
+
+            rs3 = rs.sorted_rset(lambda row: row[1], col=-1)
+            self.assertEqual(len(rs3), 3)
+            self.assertEqual([login for _, login in rs3], ['adim', 'nico', 'syt'])
+            # make sure rs is unchanged
+            self.assertEqual([login for _, login in rs], ['adim', 'syt', 'nico'])
+
+    def test_split(self):
+        rs = ResultSet([[12000, 'adim', u'Adim chez les pinguins'],
+                        [12000, 'adim', u'Jardiner facile'],
+                        [13000, 'syt',  u'Le carrelage en 42 leçons'],
+                        [14000, 'nico', u'La tarte tatin en 15 minutes'],
+                        [14000, 'nico', u"L'épluchage du castor commun"]],
+                       'Any U, L, T WHERE U is CWUser, U login L,'\
+                       'D created_by U, D title T',
+                       description=[['CWUser', 'String', 'String']] * 5)
+        with self.admin_access.web_request() as req:
+            rs.req = req
+            rs.vreg = self.vreg
+            rsets = rs.split_rset(lambda e:e.cw_attr_cache['login'])
+            self.assertEqual(len(rsets), 3)
+            self.assertEqual([login for _, login,_ in rsets[0]], ['adim', 'adim'])
+            self.assertEqual([login for _, login,_ in rsets[1]], ['syt'])
+            self.assertEqual([login for _, login,_ in rsets[2]], ['nico', 'nico'])
+            # make sure rs is unchanged
+            self.assertEqual([login for _, login,_ in rs], ['adim', 'adim', 'syt', 'nico', 'nico'])
+
+            rsets = rs.split_rset(lambda e:e.cw_attr_cache['login'], return_dict=True)
+            self.assertEqual(len(rsets), 3)
+            self.assertEqual([login for _, login,_ in rsets['nico']], ['nico', 'nico'])
+            self.assertEqual([login for _, login,_ in rsets['adim']], ['adim', 'adim'])
+            self.assertEqual([login for _, login,_ in rsets['syt']], ['syt'])
+            # make sure rs is unchanged
+            self.assertEqual([login for _, login,_ in rs], ['adim', 'adim', 'syt', 'nico', 'nico'])
+
+            rsets = rs.split_rset(lambda s: s.count('d'), col=2)
+            self.assertEqual(len(rsets), 2)
+            self.assertEqual([title for _, _, title in rsets[0]],
+                              [u"Adim chez les pinguins",
+                               u"Jardiner facile",
+                               u"L'épluchage du castor commun",])
+            self.assertEqual([title for _, _, title in rsets[1]],
+                              [u"Le carrelage en 42 leçons",
+                               u"La tarte tatin en 15 minutes",])
+            # make sure rs is unchanged
+            self.assertEqual([title for _, _, title in rs],
+                              [u'Adim chez les pinguins',
+                               u'Jardiner facile',
+                               u'Le carrelage en 42 leçons',
+                               u'La tarte tatin en 15 minutes',
+                               u"L'épluchage du castor commun"])
+
+    def test_cached_syntax_tree(self):
+        """make sure syntax tree is cached"""
+        rqlst1 = self.rset.syntax_tree()
+        rqlst2 = self.rset.syntax_tree()
+        self.assertIs(rqlst1, rqlst2)
+
+    def test_get_entity_simple(self):
+        with self.admin_access.web_request() as req:
+            req.create_entity('CWUser', login=u'adim', upassword='adim',
+                                         surname=u'di mascio', firstname=u'adrien')
+            req.drop_entity_cache()
+            e = req.execute('Any X,T WHERE X login "adim", X surname T').get_entity(0, 0)
+            self.assertEqual(e.cw_attr_cache['surname'], 'di mascio')
+            self.assertRaises(KeyError, e.cw_attr_cache.__getitem__, 'firstname')
+            self.assertRaises(KeyError, e.cw_attr_cache.__getitem__, 'creation_date')
+            self.assertEqual(pprelcachedict(e._cw_related_cache), [])
+            e.complete()
+            self.assertEqual(e.cw_attr_cache['firstname'], 'adrien')
+            self.assertEqual(pprelcachedict(e._cw_related_cache), [])
+
+    def test_get_entity_advanced(self):
+        with self.admin_access.web_request() as req:
+            req.create_entity('Bookmark', title=u'zou', path=u'/view')
+            req.drop_entity_cache()
+            req.execute('SET X bookmarked_by Y WHERE X is Bookmark, Y login "anon"')
+            rset = req.execute('Any X,Y,XT,YN WHERE X bookmarked_by Y, X title XT, Y login YN')
+
+            e = rset.get_entity(0, 0)
+            self.assertEqual(e.cw_row, 0)
+            self.assertEqual(e.cw_col, 0)
+            self.assertEqual(e.cw_attr_cache['title'], 'zou')
+            self.assertRaises(KeyError, e.cw_attr_cache.__getitem__, 'path')
+            self.assertEqual(e.view('text'), 'zou')
+            self.assertEqual(pprelcachedict(e._cw_related_cache), [])
+
+            e = rset.get_entity(0, 1)
+            self.assertEqual(e.cw_row, 0)
+            self.assertEqual(e.cw_col, 1)
+            self.assertEqual(e.cw_attr_cache['login'], 'anon')
+            self.assertRaises(KeyError, e.cw_attr_cache.__getitem__, 'firstname')
+            self.assertEqual(pprelcachedict(e._cw_related_cache),
+                              [])
+            e.complete()
+            self.assertEqual(e.cw_attr_cache['firstname'], None)
+            self.assertEqual(e.view('text'), 'anon')
+            self.assertEqual(pprelcachedict(e._cw_related_cache),
+                              [])
+
+            self.assertRaises(NotAnEntity, rset.get_entity, 0, 2)
+            self.assertRaises(NotAnEntity, rset.get_entity, 0, 3)
+
+    def test_get_entity_relation_cache_compt(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('Any X,S WHERE X in_state S, X login "anon"')
+            e = rset.get_entity(0, 0)
+            seid = req.execute('State X WHERE X name "activated"')[0][0]
+            # for_user / in_group are prefetched in CWUser __init__, in_state should
+            # be filed from our query rset
+            self.assertEqual(pprelcachedict(e._cw_related_cache),
+                              [('in_state_subject', [seid])])
+
+    def test_get_entity_advanced_prefilled_cache(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'zou', path=u'path')
+            req.cnx.commit()
+            rset = req.execute('Any X,U,S,XT,UL,SN WHERE X created_by U, U in_state S, '
+                                'X title XT, S name SN, U login UL, X eid %s' % e.eid)
+            e = rset.get_entity(0, 0)
+            self.assertEqual(e.cw_attr_cache['title'], 'zou')
+            self.assertEqual(pprelcachedict(e._cw_related_cache),
+                             [('created_by_subject', [req.user.eid])])
+            # first level of recursion
+            u = e.created_by[0]
+            self.assertEqual(u.cw_attr_cache['login'], 'admin')
+            self.assertRaises(KeyError, u.cw_attr_cache.__getitem__, 'firstname')
+            # second level of recursion
+            s = u.in_state[0]
+            self.assertEqual(s.cw_attr_cache['name'], 'activated')
+            self.assertRaises(KeyError, s.cw_attr_cache.__getitem__, 'description')
+
+
+    def test_get_entity_cache_with_left_outer_join(self):
+        with self.admin_access.web_request() as req:
+            eid = req.execute('INSERT CWUser E: E login "joe", E upassword "joe", E in_group G '
+                               'WHERE G name "users"')[0][0]
+            rset = req.execute('Any X,E WHERE X eid %(x)s, X primary_email E?', {'x': eid})
+            e = rset.get_entity(0, 0)
+            # if any of the assertion below fails with a KeyError, the relation is not cached
+            # related entities should be an empty list
+            self.assertEqual(e._cw_related_cache['primary_email_subject'][True], ())
+            # related rset should be an empty rset
+            cached = e._cw_related_cache['primary_email_subject'][False]
+            self.assertIsInstance(cached, ResultSet)
+            self.assertEqual(cached.rowcount, 0)
+
+
+    def test_get_entity_union(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'manger', path=u'path')
+            req.drop_entity_cache()
+            rset = req.execute('Any X,N ORDERBY N WITH X,N BEING '
+                                '((Any X,N WHERE X is Bookmark, X title N)'
+                                ' UNION '
+                                ' (Any X,N WHERE X is CWGroup, X name N))')
+            expected = (('CWGroup', 'guests'), ('CWGroup', 'managers'),
+                        ('Bookmark', 'manger'), ('CWGroup', 'owners'),
+                        ('CWGroup', 'users'))
+            for entity in rset.entities(): # test get_entity for each row actually
+                etype, n = expected[entity.cw_row]
+                self.assertEqual(entity.cw_etype, etype)
+                attr = etype == 'Bookmark' and 'title' or 'name'
+                self.assertEqual(entity.cw_attr_cache[attr], n)
+
+    def test_one(self):
+        with self.admin_access.web_request() as req:
+            req.create_entity('CWUser', login=u'cdevienne',
+                                         upassword=u'cdevienne',
+                                         surname=u'de Vienne',
+                                         firstname=u'Christophe')
+            e = req.execute('Any X WHERE X login "cdevienne"').one()
+
+            self.assertEqual(e.surname, u'de Vienne')
+
+            e = req.execute(
+                'Any X, N WHERE X login "cdevienne", X surname N').one()
+            self.assertEqual(e.surname, u'de Vienne')
+
+            e = req.execute(
+                'Any N, X WHERE X login "cdevienne", X surname N').one(col=1)
+            self.assertEqual(e.surname, u'de Vienne')
+
+    def test_one_no_rows(self):
+        with self.admin_access.web_request() as req:
+            with self.assertRaises(NoResultError):
+                req.execute('Any X WHERE X login "patanok"').one()
+
+    def test_one_multiple_rows(self):
+        with self.admin_access.web_request() as req:
+            req.create_entity(
+                'CWUser', login=u'cdevienne', upassword=u'cdevienne',
+                surname=u'de Vienne', firstname=u'Christophe')
+
+            req.create_entity(
+                'CWUser', login=u'adim', upassword='adim', surname=u'di mascio',
+                firstname=u'adrien')
+
+            with self.assertRaises(MultipleResultsError):
+                req.execute('Any X WHERE X is CWUser').one()
+
+    def test_related_entity_optional(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'aaaa', path=u'path')
+            rset = req.execute('Any B,U,L WHERE B bookmarked_by U?, U login L')
+            entity, rtype = rset.related_entity(0, 2)
+            self.assertEqual(entity, None)
+            self.assertEqual(rtype, None)
+
+    def test_related_entity_union_subquery_1(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'aaaa', path=u'path')
+            rset = req.execute('Any X,N ORDERBY N WITH X,N BEING '
+                                '((Any X,N WHERE X is CWGroup, X name N)'
+                                ' UNION '
+                                ' (Any X,N WHERE X is Bookmark, X title N))')
+            entity, rtype = rset.related_entity(0, 1)
+            self.assertEqual(entity.eid, e.eid)
+            self.assertEqual(rtype, 'title')
+            self.assertEqual(entity.title, 'aaaa')
+            entity, rtype = rset.related_entity(1, 1)
+            self.assertEqual(entity.cw_etype, 'CWGroup')
+            self.assertEqual(rtype, 'name')
+            self.assertEqual(entity.name, 'guests')
+
+    def test_related_entity_union_subquery_2(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'aaaa', path=u'path')
+            rset = req.execute('Any X,N ORDERBY N WHERE X is Bookmark WITH X,N BEING '
+                                '((Any X,N WHERE X is CWGroup, X name N)'
+                                ' UNION '
+                                ' (Any X,N WHERE X is Bookmark, X title N))')
+            entity, rtype = rset.related_entity(0, 1)
+            self.assertEqual(entity.eid, e.eid)
+            self.assertEqual(rtype, 'title')
+            self.assertEqual(entity.title, 'aaaa')
+
+    def test_related_entity_union_subquery_3(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'aaaa', path=u'path')
+            rset = req.execute('Any X,N ORDERBY N WITH N,X BEING '
+                                '((Any N,X WHERE X is CWGroup, X name N)'
+                                ' UNION '
+                                ' (Any N,X WHERE X is Bookmark, X title N))')
+            entity, rtype = rset.related_entity(0, 1)
+            self.assertEqual(entity.eid, e.eid)
+            self.assertEqual(rtype, 'title')
+            self.assertEqual(entity.title, 'aaaa')
+
+    def test_related_entity_union_subquery_4(self):
+        with self.admin_access.web_request() as req:
+            e = req.create_entity('Bookmark', title=u'aaaa', path=u'path')
+            rset = req.execute('Any X,X, N ORDERBY N WITH X,N BEING '
+                                '((Any X,N WHERE X is CWGroup, X name N)'
+                                ' UNION '
+                                ' (Any X,N WHERE X is Bookmark, X title N))')
+            entity, rtype = rset.related_entity(0, 2)
+            self.assertEqual(entity.eid, e.eid)
+            self.assertEqual(rtype, 'title')
+            self.assertEqual(entity.title, 'aaaa')
+
+    def test_related_entity_trap_subquery(self):
+        with self.admin_access.web_request() as req:
+            req.create_entity('Bookmark', title=u'test bookmark', path=u'')
+            req.execute('SET B bookmarked_by U WHERE U login "admin"')
+            rset = req.execute('Any B,T,L WHERE B bookmarked_by U, U login L '
+                                'WITH B,T BEING (Any B,T WHERE B is Bookmark, B title T)')
+            rset.related_entity(0, 2)
+
+    def test_related_entity_subquery_outerjoin(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('Any X,S,L WHERE X in_state S '
+                                'WITH X, L BEING (Any X,MAX(L) GROUPBY X '
+                                'WHERE X is CWUser, T? wf_info_for X, T creation_date L)')
+            self.assertEqual(len(rset), 2)
+            rset.related_entity(0, 1)
+            rset.related_entity(0, 2)
+
+    def test_entities(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('Any U,G WHERE U in_group G')
+            # make sure we have at least one element
+            self.assertTrue(rset)
+            self.assertEqual(set(e.e_schema.type for e in rset.entities(0)),
+                              set(['CWUser',]))
+            self.assertEqual(set(e.e_schema.type for e in rset.entities(1)),
+                              set(['CWGroup',]))
+
+    def test_iter_rows_with_entities(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('Any U,UN,G,GN WHERE U in_group G, U login UN, G name GN')
+            # make sure we have at least one element
+            self.assertTrue(rset)
+            out = list(rset.iter_rows_with_entities())[0]
+            self.assertEqual( out[0].login, out[1] )
+            self.assertEqual( out[2].name, out[3] )
+
+    def test_printable_rql(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute(u'CWEType X WHERE X final FALSE')
+            self.assertEqual(rset.printable_rql(),
+                              'Any X WHERE X final FALSE, X is CWEType')
+
+    def test_searched_text(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute(u'Any X WHERE X has_text "foobar"')
+            self.assertEqual(rset.searched_text(), 'foobar')
+            rset = req.execute(u'Any X WHERE X has_text %(text)s', {'text' : 'foo'})
+            self.assertEqual(rset.searched_text(), 'foo')
+
+    def test_union_limited_rql(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('(Any X,N WHERE X is Bookmark, X title N)'
+                                ' UNION '
+                                '(Any X,N WHERE X is CWGroup, X name N)')
+            rset.limit(2, 10, inplace=True)
+            self.assertEqual(rset.limited_rql(),
+                              'Any A,B LIMIT 2 OFFSET 10 '
+                              'WITH A,B BEING ('
+                              '(Any X,N WHERE X is Bookmark, X title N) '
+                              'UNION '
+                              '(Any X,N WHERE X is CWGroup, X name N)'
+                              ')')
+
+    def test_count_users_by_date(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('Any D, COUNT(U) GROUPBY D WHERE U is CWUser, U creation_date D')
+            self.assertEqual(rset.related_entity(0,0), (None, None))
+
+    def test_str(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('(Any X,N WHERE X is CWGroup, X name N)')
+            self.assertIsInstance(str(rset), string_types)
+            self.assertEqual(len(str(rset).splitlines()), 1)
+
+    def test_repr(self):
+        with self.admin_access.web_request() as req:
+            rset = req.execute('(Any X,N WHERE X is CWGroup, X name N)')
+            self.assertIsInstance(repr(rset), string_types)
+            self.assertTrue(len(repr(rset).splitlines()) > 1)
+
+            rset = req.execute('(Any X WHERE X is CWGroup, X name "managers")')
+            self.assertIsInstance(str(rset), string_types)
+            self.assertEqual(len(str(rset).splitlines()), 1)
+
+    def test_slice(self):
+        rs = ResultSet([[12000, 'adim', u'Adim chez les pinguins'],
+                        [12000, 'adim', u'Jardiner facile'],
+                        [13000, 'syt',  u'Le carrelage en 42 leçons'],
+                        [14000, 'nico', u'La tarte tatin en 15 minutes'],
+                        [14000, 'nico', u"L'épluchage du castor commun"]],
+                       'Any U, L, T WHERE U is CWUser, U login L,'\
+                       'D created_by U, D title T',
+                       description=[['CWUser', 'String', 'String']] * 5)
+        self.assertEqual(rs[1::2],
+            [[12000, 'adim', u'Jardiner facile'],
+             [14000, 'nico', u'La tarte tatin en 15 minutes']])
+
+    def test_nonregr_symmetric_relation(self):
+        # see https://www.cubicweb.org/ticket/4739253
+        with self.admin_access.client_cnx() as cnx:
+            p1 = cnx.create_entity('Personne', nom=u'sylvain')
+            cnx.create_entity('Personne', nom=u'denis', connait=p1)
+            cnx.commit()
+            rset = cnx.execute('Any X,Y WHERE X connait Y')
+            rset.get_entity(0, 1) # used to raise KeyError
+
+if __name__ == '__main__':
+    unittest_main()