--- a/pyramid_cubicweb/tests/test_bw_request.py	Tue Mar 22 13:58:38 2016 +0100
+++ b/pyramid_cubicweb/tests/test_bw_request.py	Tue Mar 22 14:01:44 2016 +0100
@@ -1,4 +1,4 @@
-# -*- coding: utf8 -*-
+# -*- coding: utf-8 -*-
 from StringIO import StringIO
 
 import webtest
@@ -96,3 +96,8 @@
                 '/', POST=params,
                 content_type='application/x-www-form-urlencoded'))
         self.assertEqual(u"é", req.form['arg'])
+
+
+if __name__ == '__main__':
+    from unittest import main
+    main()

--- a/pyramid_cubicweb/tests/test_core.py	Tue Mar 22 13:58:38 2016 +0100
+++ b/pyramid_cubicweb/tests/test_core.py	Tue Mar 22 14:01:44 2016 +0100
@@ -42,3 +42,8 @@
         res = self.webapp.get('/uncommitable')
         self.assertEqual(res.text, 'OK')
         self.assertEqual(res.status_int, 200)
+
+
+if __name__ == '__main__':
+    from unittest import main
+    main()

--- a/pyramid_cubicweb/tests/test_login.py	Tue Mar 22 13:58:38 2016 +0100
+++ b/pyramid_cubicweb/tests/test_login.py	Tue Mar 22 14:01:44 2016 +0100
@@ -39,3 +39,8 @@
         self.assertNotIn('auth_tkt', cookies)
         self.assertIn('pauth_tkt', cookies)
         self.assertIsNotNone(cookies['pauth_tkt'].expires)
+
+
+if __name__ == '__main__':
+    from unittest import main
+    main()

--- a/pyramid_cubicweb/tests/test_rest_api.py	Tue Mar 22 13:58:38 2016 +0100
+++ b/pyramid_cubicweb/tests/test_rest_api.py	Tue Mar 22 14:01:44 2016 +0100
@@ -1,11 +1,11 @@
 from __future__ import absolute_import
 
-from . import PyramidCWTest
-
 from pyramid_cubicweb.rest_api import EntityResource
 from pyramid_cubicweb.core import CubicWebPyramidRequest
 from pyramid.view import view_config
 
+from pyramid_cubicweb.tests import PyramidCWTest
+
 
 class RestApiTest(PyramidCWTest):
     def includeme(self, config):
@@ -52,3 +52,8 @@
 
 def includeme(config):
     config.scan(__name__)
+
+
+if __name__ == '__main__':
+    from unittest import main
+    main()

--- a/pyramid_cubicweb/tests/test_tools.py	Tue Mar 22 13:58:38 2016 +0100
+++ b/pyramid_cubicweb/tests/test_tools.py	Tue Mar 22 14:01:44 2016 +0100
@@ -24,3 +24,8 @@
         with self.admin_access.repo_cnx() as cnx:
             tools.cnx_attach_entity(cnx, user)
             self.assertEqual(user.login, 'anon')
+
+
+if __name__ == '__main__':
+    from unittest import main
+    main()