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, 12 insertions, 11 deletions

diff --git a/tests/unit/benchmark/scenarios/networking/test_iperf3.py b/tests/unit/benchmark/scenarios/networking/test_iperf3.py
index 91f800b60..ea53cb9ab 100644
--- a/tests/unit/benchmark/scenarios/networking/test_iperf3.py
+++ b/tests/unit/benchmark/scenarios/networking/test_iperf3.py
@@ -11,10 +11,13 @@
 
 # Unittest for yardstick.benchmark.scenarios.networking.iperf3.Iperf
 
-import mock
-import unittest
+from __future__ import absolute_import
+
 import os
-import json
+import unittest
+
+import mock
+from oslo_serialization import jsonutils
 
 from yardstick.benchmark.scenarios.networking import iperf3
 
@@ -78,7 +81,7 @@ class IperfTestCase(unittest.TestCase):
 
         sample_output = self._read_sample_output(self.output_name_tcp)
         mock_ssh.SSH().execute.return_value = (0, sample_output, '')
-        expected_result = json.loads(sample_output)
+        expected_result = jsonutils.loads(sample_output)
         p.run(result)
         self.assertEqual(result, expected_result)
 
@@ -97,7 +100,7 @@ class IperfTestCase(unittest.TestCase):
 
         sample_output = self._read_sample_output(self.output_name_tcp)
         mock_ssh.SSH().execute.return_value = (0, sample_output, '')
-        expected_result = json.loads(sample_output)
+        expected_result = jsonutils.loads(sample_output)
         p.run(result)
         self.assertEqual(result, expected_result)
 
@@ -119,8 +122,7 @@ class IperfTestCase(unittest.TestCase):
         self.assertRaises(AssertionError, p.run, result)
 
     def test_iperf_successful_sla_jitter(self, mock_ssh):
-
-        options = {"udp":"udp","bandwidth":"20m"}
+        options = {"udp": "udp", "bandwidth": "20m"}
         args = {
             'options': options,
             'sla': {'jitter': 10}
@@ -133,13 +135,12 @@ class IperfTestCase(unittest.TestCase):
 
         sample_output = self._read_sample_output(self.output_name_udp)
         mock_ssh.SSH().execute.return_value = (0, sample_output, '')
-        expected_result = json.loads(sample_output)
+        expected_result = jsonutils.loads(sample_output)
         p.run(result)
         self.assertEqual(result, expected_result)
 
     def test_iperf_unsuccessful_sla_jitter(self, mock_ssh):
-
-        options = {"udp":"udp","bandwidth":"20m"}
+        options = {"udp": "udp", "bandwidth": "20m"}
         args = {
             'options': options,
             'sla': {'jitter': 0.0001}
@@ -167,7 +168,7 @@ class IperfTestCase(unittest.TestCase):
         mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR')
         self.assertRaises(RuntimeError, p.run, result)
 
-    def _read_sample_output(self,filename):
+    def _read_sample_output(self, filename):
         curr_path = os.path.dirname(os.path.abspath(__file__))
         output = os.path.join(curr_path, filename)
         with open(output) as f: