diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/devtools/webtest.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/devtools/webtest.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,34 @@
+from __future__ import absolute_import
+
+import webtest
+
+from cubicweb.wsgi import handler
+from cubicweb.devtools.testlib import CubicWebTC
+
+
+class CubicWebTestTC(CubicWebTC):
+    def setUp(self):
+        super(CubicWebTestTC, self).setUp()
+        self.config.global_set_option('base-url', 'http://localhost.local/')
+        # call load_configuration again to let the config reset its datadir_url
+        self.config.load_configuration()
+        webapp = handler.CubicWebWSGIApplication(self.config)
+        self.webapp = webtest.TestApp(webapp)
+
+    def tearDown(self):
+        del self.webapp
+        super(CubicWebTestTC, self).tearDown()
+
+    def login(self, user=None, password=None, **args):
+        if user is None:
+            user = self.admlogin
+        if password is None:
+            password = self.admpassword if user == self.admlogin else user
+        args.update({
+            '__login': user,
+            '__password': password
+        })
+        return self.webapp.get('/login', args)
+
+    def logout(self):
+        return self.webapp.get('/logout')