Add support for Python 3

Porting to Python3 using Openstack guidelines:
https://wiki.openstack.org/wiki/Python3

This passes unittests on Python 3.5 and passes opnfv_smoke suite

Updates:
   use six for urlparse and urlopen
   fix exception.message attribute removal
   run unittests on python3
   use unitest.mock on python 3
   fix open mock for vsperf
   fix float division by using delta/eplison comparison
   use unicode in StringIO
   use plugin/sample_config.yaml relative path from test case
   fixed apexlake unittests
   upgraded to mock 2.0.0 to match python3 unittest.mock features
   fixed flake8 issues
   implement safe JSON decode with oslo_serialization.jsonutils.dump_as_bytes()
   implement safe unicode encode/decode with oslo_utils.encodeutils

heat: convert pub key file from bytes to unicode
    pkg_resources returns raw bytes, in python3
    we have to decode this to utf-8 unicode
    so JSON can encode it for heat template

JIRA: YARDSTICK-452

Change-Id: Ib80dd1d0c0eb0592acd832b82f6a7f8f7c20bfda
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/tests/unit/benchmark/scenarios/compute/test_plugintest.py b/tests/unit/benchmark/scenarios/compute/test_plugintest.py
index 94f52738c..a5331caf7 100644
--- a/tests/unit/benchmark/scenarios/compute/test_plugintest.py
+++ b/tests/unit/benchmark/scenarios/compute/test_plugintest.py
@@ -11,10 +11,12 @@
 
 # Unittest for yardstick.benchmark.scenarios.compute.plugintest.PluginTest
 
-import mock
-import json
+from __future__ import absolute_import
+
 import unittest
-import os
+
+import mock
+from oslo_serialization import jsonutils
 
 from yardstick.benchmark.scenarios.compute import plugintest
 
@@ -50,7 +52,7 @@ class PluginTestTestCase(unittest.TestCase):
         sample_output = '{"Test Output": "Hello world!"}'
         mock_ssh.SSH().execute.return_value = (0, sample_output, '')
         s.run(self.result)
-        expected_result = json.loads(sample_output)
+        expected_result = jsonutils.loads(sample_output)
         self.assertEqual(self.result, expected_result)
 
     def test_sample_unsuccessful_script_error(self, mock_ssh):