diff -r 02b52bf9f5f8 -r 0865e1e90674 test/unittest_utils.py
--- a/test/unittest_utils.py	Wed Mar 24 10:23:31 2010 +0100
+++ b/test/unittest_utils.py	Wed Apr 28 11:54:13 2010 +0200
@@ -1,9 +1,22 @@
+# 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.
+#
+# logilab-common 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
 
-:organization: Logilab
-:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
-:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
-:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
 """
 
 import re
@@ -11,13 +24,12 @@
 import datetime
 
 from logilab.common.testlib import TestCase, unittest_main
-from cubicweb.utils import make_uid, UStringIO, SizeConstrainedList
+from cubicweb.utils import make_uid, UStringIO, SizeConstrainedList, RepeatList
 
 try:
-    import simplejson
-    from cubicweb.utils import CubicWebJsonEncoder
+    from cubicweb.utils import CubicWebJsonEncoder, json
 except ImportError:
-    simplejson = None
+    json = None
 
 class MakeUidTC(TestCase):
     def test_1(self):
@@ -41,6 +53,52 @@
         self.assert_(UStringIO())
 
 
+class RepeatListTC(TestCase):
+
+    def test_base(self):
+        l = RepeatList(3, (1, 3))
+        self.assertEquals(l[0], (1, 3))
+        self.assertEquals(l[2], (1, 3))
+        self.assertEquals(l[-1], (1, 3))
+        self.assertEquals(len(l), 3)
+        # XXX
+        self.assertEquals(l[4], (1, 3))
+
+        self.failIf(RepeatList(0, None))
+
+    def test_slice(self):
+        l = RepeatList(3, (1, 3))
+        self.assertEquals(l[0:1], [(1, 3)])
+        self.assertEquals(l[0:4], [(1, 3)]*3)
+        self.assertEquals(l[:], [(1, 3)]*3)
+
+    def test_iter(self):
+        self.assertEquals(list(RepeatList(3, (1, 3))),
+                          [(1, 3)]*3)
+
+    def test_add(self):
+        l = RepeatList(3, (1, 3))
+        self.assertEquals(l + [(1, 4)], [(1, 3)]*3  + [(1, 4)])
+        self.assertEquals([(1, 4)] + l, [(1, 4)] + [(1, 3)]*3)
+        self.assertEquals(l + RepeatList(2, (2, 3)), [(1, 3)]*3 + [(2, 3)]*2)
+
+        x = l + RepeatList(2, (1, 3))
+        self.assertIsInstance(x, RepeatList)
+        self.assertEquals(len(x), 5)
+        self.assertEquals(x[0], (1, 3))
+
+        x = l + [(1, 3)] * 2
+        self.assertEquals(x, [(1, 3)] * 5)
+
+    def test_eq(self):
+        self.assertEquals(RepeatList(3, (1, 3)),
+                          [(1, 3)]*3)
+
+    def test_pop(self):
+        l = RepeatList(3, (1, 3))
+        l.pop(2)
+        self.assertEquals(l, [(1, 3)]*2)
+
 class SizeConstrainedListTC(TestCase):
 
     def test_append(self):
@@ -61,11 +119,11 @@
 
 class JSONEncoderTC(TestCase):
     def setUp(self):
-        if simplejson is None:
-            self.skip('simplejson not available')
+        if json is None:
+            self.skip('json not available')
 
     def encode(self, value):
-        return simplejson.dumps(value, cls=CubicWebJsonEncoder)
+        return json.dumps(value, cls=CubicWebJsonEncoder)
 
     def test_encoding_dates(self):
         self.assertEquals(self.encode(datetime.datetime(2009, 9, 9, 20, 30)),