diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/test/unittest_spa2rql.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/test/unittest_spa2rql.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,224 @@
+# copyright 2003-2010 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/>.
+import unittest
+
+from logilab.common.testlib import TestCase, unittest_main
+from cubicweb.devtools import TestServerConfiguration
+from cubicweb.xy import xy
+
+SKIPCAUSE = None
+try:
+    from cubicweb.spa2rql import Sparql2rqlTranslator
+except ImportError as exc:
+    SKIPCAUSE = str(exc)
+
+xy.add_equivalence('Project', 'doap:Project')
+xy.add_equivalence('Project creation_date', 'doap:Project doap:created')
+xy.add_equivalence('Project name', 'doap:Project doap:name')
+xy.add_equivalence('Project name', 'doap:Project dc:title')
+
+
+config = TestServerConfiguration('data')
+config.bootstrap_cubes()
+schema = config.load_schema()
+
+
+@unittest.skipIf(SKIPCAUSE, SKIPCAUSE)
+class XYTC(TestCase):
+    def setUp(self):
+        self.tr = Sparql2rqlTranslator(schema)
+
+    def _test(self, sparql, rql, args={}):
+        qi = self.tr.translate(sparql)
+        self.assertEqual(qi.finalize(), (rql, args))
+
+    def XXX_test_base_01(self):
+        self._test('SELECT * WHERE { }', 'Any X')
+
+
+    def test_base_is(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT ?project
+    WHERE  {
+      ?project a doap:Project;
+    }''', 'Any PROJECT WHERE PROJECT is Project')
+
+    def test_base_rdftype(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
+    SELECT ?project
+    WHERE  {
+      ?project rdf:type doap:Project.
+    }''', 'Any PROJECT WHERE PROJECT is Project')
+
+    def test_base_attr_sel(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT ?created
+    WHERE  {
+      ?project a doap:Project;
+              doap:created ?created.
+    }''', 'Any CREATED WHERE PROJECT creation_date CREATED, PROJECT is Project')
+
+
+    def test_base_attr_sel_distinct(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT DISTINCT ?name
+    WHERE  {
+      ?project a doap:Project;
+              doap:name ?name.
+    }''', 'DISTINCT Any NAME WHERE PROJECT name NAME, PROJECT is Project')
+
+
+    def test_base_attr_sel_reduced(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT REDUCED ?name
+    WHERE  {
+      ?project a doap:Project;
+              doap:name ?name.
+    }''', 'Any NAME WHERE PROJECT name NAME, PROJECT is Project')
+
+
+    def test_base_attr_sel_limit_offset(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT ?name
+    WHERE  {
+      ?project a doap:Project;
+              doap:name ?name.
+    }
+    LIMIT 20''', 'Any NAME LIMIT 20 WHERE PROJECT name NAME, PROJECT is Project')
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT ?name
+    WHERE  {
+      ?project a doap:Project;
+              doap:name ?name.
+    }
+    LIMIT 20 OFFSET 10''', 'Any NAME LIMIT 20 OFFSET 10 WHERE PROJECT name NAME, PROJECT is Project')
+
+
+    def test_base_attr_sel_orderby(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT ?name
+    WHERE  {
+      ?project a doap:Project;
+              doap:name ?name;
+              doap:created ?created.
+    }
+    ORDER BY ?name DESC(?created)''', 'Any NAME ORDERBY NAME ASC, CREATED DESC WHERE PROJECT name NAME, PROJECT creation_date CREATED, PROJECT is Project')
+
+
+    def test_base_any_attr_sel(self):
+        self._test('''
+    PREFIX dc: <http://purl.org/dc/elements/1.1/>
+    SELECT ?x ?cd
+    WHERE  {
+      ?x dc:date ?cd;
+    }''', 'Any X, CD WHERE X creation_date CD')
+
+
+    def test_base_any_attr_sel_amb(self):
+        xy.add_equivalence('Version publication_date', 'doap:Version dc:date')
+        try:
+            self._test('''
+    PREFIX dc: <http://purl.org/dc/elements/1.1/>
+    SELECT ?x ?cd
+    WHERE  {
+      ?x dc:date ?cd;
+    }''', '(Any X, CD WHERE , X creation_date CD) UNION (Any X, CD WHERE , X publication_date CD, X is Version)')
+        finally:
+            xy.remove_equivalence('Version publication_date', 'doap:Version dc:date')
+
+
+    def test_base_any_attr_sel_amb_limit_offset(self):
+        xy.add_equivalence('Version publication_date', 'doap:Version dc:date')
+        try:
+            self._test('''
+    PREFIX dc: <http://purl.org/dc/elements/1.1/>
+    SELECT ?x ?cd
+    WHERE  {
+      ?x dc:date ?cd;
+    }
+    LIMIT 20 OFFSET 10''', 'Any X, CD LIMIT 20 OFFSET 10 WITH X, CD BEING ((Any X, CD WHERE , X creation_date CD) UNION (Any X, CD WHERE , X publication_date CD, X is Version))')
+        finally:
+            xy.remove_equivalence('Version publication_date', 'doap:Version dc:date')
+
+
+    def test_base_any_attr_sel_amb_orderby(self):
+        xy.add_equivalence('Version publication_date', 'doap:Version dc:date')
+        try:
+            self._test('''
+    PREFIX dc: <http://purl.org/dc/elements/1.1/>
+    SELECT ?x ?cd
+    WHERE  {
+      ?x dc:date ?cd;
+    }
+    ORDER BY DESC(?cd)''', 'Any X, CD ORDERBY CD DESC WITH X, CD BEING ((Any X, CD WHERE , X creation_date CD) UNION (Any X, CD WHERE , X publication_date CD, X is Version))')
+        finally:
+            xy.remove_equivalence('Version publication_date', 'doap:Version dc:date')
+
+
+    def test_restr_attr(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    SELECT ?project
+    WHERE  {
+      ?project a doap:Project;
+              doap:name "cubicweb".
+    }''', 'Any PROJECT WHERE PROJECT name %(a)s, PROJECT is Project', {'a': 'cubicweb'})
+
+    def test_dctitle_both_project_cwuser(self):
+        self._test('''
+    PREFIX doap: <http://usefulinc.com/ns/doap#>
+    PREFIX dc: <http://purl.org/dc/elements/1.1/>
+    SELECT ?project ?title
+    WHERE  {
+      ?project a doap:Project;
+              dc:title ?title.
+    }''', 'Any PROJECT, TITLE WHERE PROJECT name TITLE, PROJECT is Project')
+
+# # Two elements in the group
+# PREFIX :  <http://example.org/ns#>
+# SELECT *
+# { :p :q :r  OPTIONAL { :a :b :c }
+#   :p :q :r  OPTIONAL { :a :b :c }
+# }
+
+# PREFIX : <http://example.org/ns#>
+# SELECT *
+# {
+#   { ?s ?p ?o } UNION { ?a ?b ?c }
+# }
+
+# PREFIX dob: <http://placetime.com/interval/gregorian/1977-01-18T04:00:00Z/P>
+# PREFIX time: <http://www.ai.sri.com/daml/ontologies/time/Time.daml#>
+# PREFIX dc: <http://purl.org/dc/elements/1.1/>
+# SELECT ?desc
+# WHERE  {
+#   dob:1D a time:ProperInterval;
+#          dc:description ?desc.
+# }
+
+if __name__ == '__main__':
+    unittest_main()