diff --git a/cinder/tests/unit/targets/test_cxt_driver.py b/cinder/tests/unit/targets/test_cxt_driver.py
index 49c79edd0..9ae932192 100644
--- a/cinder/tests/unit/targets/test_cxt_driver.py
+++ b/cinder/tests/unit/targets/test_cxt_driver.py
@@ -70,7 +70,7 @@ class TestCxtAdmDriver(tf.TargetDriverFixture):
         tmp_file.seek(0)
 
         expected = ('otzL', '234Z')
-        with mock.patch('__builtin__.open') as mock_open:
+        with mock.patch('six.moves.builtins.open') as mock_open:
             ctx = context.get_admin_context()
             mock_open.return_value = contextlib.closing(tmp_file)
             self.assertEqual(expected,
@@ -79,7 +79,7 @@ class TestCxtAdmDriver(tf.TargetDriverFixture):
             self.assertTrue(mock_open.called)
 
     def test_get_target_chap_auth_negative(self):
-        with mock.patch('__builtin__.open') as mock_open:
+        with mock.patch('six.moves.builtins.open') as mock_open:
             e = IOError()
             e.errno = 123
             mock_open.side_effect = e
@@ -87,8 +87,8 @@ class TestCxtAdmDriver(tf.TargetDriverFixture):
             self.assertRaises(IOError,
                               self.target._get_target_chap_auth,
                               ctxt, self.test_vol)
-            mock_open.side_effect = StandardError()
-            self.assertRaises(StandardError,
+            mock_open.side_effect = ZeroDivisionError()
+            self.assertRaises(ZeroDivisionError,
                               self.target._get_target_chap_auth,
                               ctxt, self.test_vol)
 
diff --git a/cinder/tests/unit/targets/test_tgt_driver.py b/cinder/tests/unit/targets/test_tgt_driver.py
index efcbe089d..4ef1a9e39 100644
--- a/cinder/tests/unit/targets/test_tgt_driver.py
+++ b/cinder/tests/unit/targets/test_tgt_driver.py
@@ -153,7 +153,7 @@ class TestTgtAdmDriver(tf.TargetDriverFixture):
                            'bspath': self.testvol_path}
         with open(os.path.join(self.fake_volumes_dir,
                                self.test_vol.split(':')[1]),
-                  'wb') as tmp_file:
+                  'w') as tmp_file:
             tmp_file.write(persist_file)
         ctxt = context.get_admin_context()
         expected = ('otzL', '234Z')
@@ -162,7 +162,7 @@ class TestTgtAdmDriver(tf.TargetDriverFixture):
                                                            self.test_vol))
 
     def test_get_target_chap_auth_negative(self):
-        with mock.patch('__builtin__.open') as mock_open:
+        with mock.patch('six.moves.builtins.open') as mock_open:
             e = IOError()
             e.errno = 123
             mock_open.side_effect = e
@@ -170,8 +170,8 @@ class TestTgtAdmDriver(tf.TargetDriverFixture):
             self.assertRaises(IOError,
                               self.target._get_target_chap_auth,
                               ctxt, self.test_vol)
-            mock_open.side_effect = StandardError()
-            self.assertRaises(StandardError,
+            mock_open.side_effect = ZeroDivisionError()
+            self.assertRaises(ZeroDivisionError,
                               self.target._get_target_chap_auth,
                               ctxt, self.test_vol)
 
diff --git a/tox.ini b/tox.ini
index 7c36705e4..1ff355b83 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,6 +29,12 @@ downloadcache = ~/cache/pip
 [testenv:py34]
 commands =
   python -m testtools.run \
+    cinder.tests.unit.targets.test_base_iscsi_driver \
+    cinder.tests.unit.targets.test_cxt_driver \
+    cinder.tests.unit.targets.test_iser_driver \
+    cinder.tests.unit.targets.test_lio_driver \
+    cinder.tests.unit.targets.test_scst_driver \
+    cinder.tests.unit.targets.test_tgt_driver \
     cinder.tests.unit.test_api_urlmap \
     cinder.tests.unit.test_backup \
     cinder.tests.unit.test_backup_ceph \