Add test for fulltext operator-generated ORDER BY expression.

Fulltext operator (MatchComparisonOperator) is special because it generates
ORDER BY expression, which is to be used only if caller tells catalog to sort
on the fulltext column. This code tests just that.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33661 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ZSQLCatalog/tests/testSQLCatalog.py

@@ -551,6 +551,15 @@ class TestSQLCatalog(unittest.TestCase):
     self.assertTrue(self._catalog.hasColumn('uid'))
     self.assertFalse(self._catalog.hasColumn('foobar'))
 
+  def test_fulltextOrderBy(self):
+    # No order_by_list, resulting "ORDER BY" must be empty.
+    sql_expression = self.asSQLExpression({'fulltext': 'foo'})
+    self.assertEqual(sql_expression.getOrderByExpression(), '')
+    # order_by_list on fulltext column, resulting "ORDER BY" must be non-empty.
+    sql_expression = self.asSQLExpression({'fulltext': 'foo',
+      'order_by_list': [('fulltext', ), ]})
+    self.assertNotEqual(sql_expression.getOrderByExpression(), '')
+
 ##return catalog(title=Query(title='a', operator='not'))
 #return catalog(title={'query': 'a', 'operator': 'not'})
 #return catalog(title={'query': ['a', 'b'], 'operator': 'not'})