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, 9 insertions, 5 deletions

diff --git a/tests/unit/benchmark/scenarios/parser/test_parser.py b/tests/unit/benchmark/scenarios/parser/test_parser.py
index d11a6d5c8..59b98a092 100644
--- a/tests/unit/benchmark/scenarios/parser/test_parser.py
+++ b/tests/unit/benchmark/scenarios/parser/test_parser.py
@@ -11,12 +11,16 @@
 
 # Unittest for yardstick.benchmark.scenarios.parser.Parser
 
-import mock
+from __future__ import absolute_import
+
 import unittest
-import json
+
+import mock
+from oslo_serialization import jsonutils
 
 from yardstick.benchmark.scenarios.parser import parser
 
+
 @mock.patch('yardstick.benchmark.scenarios.parser.parser.subprocess')
 class ParserTestCase(unittest.TestCase):
 
@@ -32,8 +36,8 @@ class ParserTestCase(unittest.TestCase):
 
     def test_parser_successful(self, mock_subprocess):
         args = {
-            'options': {'yangfile':'/root/yardstick/samples/yang.yaml',
-            'toscafile':'/root/yardstick/samples/tosca.yaml'},
+            'options': {'yangfile': '/root/yardstick/samples/yang.yaml',
+                        'toscafile': '/root/yardstick/samples/tosca.yaml'},
         }
         p = parser.Parser(args, {})
         result = {}
@@ -41,7 +45,7 @@ class ParserTestCase(unittest.TestCase):
         sample_output = '{"yangtotosca": "success"}'
 
         p.run(result)
-        expected_result = json.loads(sample_output)
+        expected_result = jsonutils.loads(sample_output)
 
     def test_parser_teardown_successful(self, mock_subprocess):