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, 14 insertions, 3 deletions

diff --git a/tests/unit/benchmark/core/test_plugin.py b/tests/unit/benchmark/core/test_plugin.py
index 441116a25..edc103415 100644
--- a/tests/unit/benchmark/core/test_plugin.py
+++ b/tests/unit/benchmark/core/test_plugin.py
@@ -10,16 +10,27 @@
 ##############################################################################
 
 # Unittest for yardstick.benchmark.core.plugin
-
-import mock
+from __future__ import absolute_import
+import os
+from os.path import dirname as dirname
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import unittest
 
 from yardstick.benchmark.core import plugin
 
 
 class Arg(object):
+
     def __init__(self):
-        self.input_file = ('plugin/sample_config.yaml',)
+        # self.input_file = ('plugin/sample_config.yaml',)
+        self.input_file = [
+            os.path.join(os.path.abspath(
+                dirname(dirname(dirname(dirname(dirname(__file__)))))),
+                'plugin/sample_config.yaml')]
 
 
 @mock.patch('yardstick.benchmark.core.plugin.ssh')