Addition of Prox NSB changes in yardstick

JIRA: YARDSTICK-802

Addition of Prox L2Fwd, MPLS test cases for BM and Heat.

updates:
Most of tg_prox and prox_vnf were absorbed into the base classes.

delete most of ProxDpdkVnfSetupEnvHelper, it is handled by DpdkVnfSetupEnvHelper baseclass

use standard _build_pipeline_kwargs methods

don't use terminate() use baseclass version

add new method kill_vnf that runs pkill -x

replace resource_helper.execute() with vnf_execture for dumping stats

In order to share code between tg_prox and vnf_prox
refactor to have tg_prox hold and wrap a ProxApproxVnf instance and call
methods on that class.   Do this instead of multiple-inheritance.

Implement ProxApproxVnf.terminate() using prox socket command
based exit, (stop_all, quit, force_quit).

vnf_execute calls resource_helper.execute() which calls
socket methods on the sut object.

Since tg_prox wraps the VNF object, we can call
terminate on the VNF object and it should work correctly.

move prox config generation to parent process
    we need to get core number info from config file
    inside the TG processes, so we need to generate
    the config in the parent process so the data is
    copied to the child during the fork.

moved more config file methods to the setup_helper class.

we run force_quit after quit, so the socket should already be closed
this will trigger socket error, so add _ignore_errors option for
vnf_execute to ignore socket errors

Fixed the terminate issue. Added MPLS tests.
Added TG Stats in_packet/out_packet
Fixed compile (pep8) issues

Fixed MPLS TG port stats, in/out packets
Added Grafana dashboards for L2FWD and MPLS
Traffic profiles modified for tolerated loss and
precision as per DATS tests.

Added unit test case for Mpls
Single port test stats collection support.

Change-Id: Idd9493f597c668a3bb7d90e167e6a418546106e8
Signed-off-by: Abhijit Sinha <abhijit.sinha@intel.com>
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

9 files changed, 1110 insertions, 817 deletions

diff --git a/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py
index 7570067b9..2e83353cd 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_acl_vnf.py
@@ -22,6 +22,7 @@ import mock
 import os
 
 from tests.unit import STL_MOCKS
+from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
 
 
 STLClient = mock.MagicMock()
@@ -34,6 +35,7 @@ if stl_patch:
 
 
 TEST_FILE_YAML = 'nsb_test_case.yaml'
+SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 
 
 name = 'vnf__1'
@@ -245,52 +247,45 @@ class TestAclApproxVnf(unittest.TestCase):
         self.assertIsNone(acl_approx_vnf._vnf_process)
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_collect_kpi(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            acl_approx_vnf = AclApproxVnf(name, vnfd)
-            acl_approx_vnf.q_in = mock.MagicMock()
-            acl_approx_vnf.q_out = mock.MagicMock()
-            acl_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            acl_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
-            acl_approx_vnf.vnf_execute = mock.Mock(return_value="")
-            result = {'packets_dropped': 0, 'packets_fwd': 0,
-                      'packets_in': 0}
-            self.assertEqual(result, acl_approx_vnf.collect_kpi())
+    @mock.patch(SSH_HELPER)
+    def test_collect_kpi(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        acl_approx_vnf = AclApproxVnf(name, vnfd)
+        acl_approx_vnf.q_in = mock.MagicMock()
+        acl_approx_vnf.q_out = mock.MagicMock()
+        acl_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        acl_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
+        acl_approx_vnf.vnf_execute = mock.Mock(return_value="")
+        result = {'packets_dropped': 0, 'packets_fwd': 0, 'packets_in': 0}
+        self.assertEqual(result, acl_approx_vnf.collect_kpi())
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_vnf_execute_command(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            acl_approx_vnf = AclApproxVnf(name, vnfd)
-            acl_approx_vnf.q_in = mock.MagicMock()
-            acl_approx_vnf.q_out = mock.MagicMock()
-            acl_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            cmd = "quit"
-            self.assertEqual("", acl_approx_vnf.vnf_execute(cmd))
+    @mock.patch(SSH_HELPER)
+    def test_vnf_execute_command(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
 
-    def test_get_stats(self, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            acl_approx_vnf = AclApproxVnf(name, vnfd)
-            acl_approx_vnf.q_in = mock.MagicMock()
-            acl_approx_vnf.q_out = mock.MagicMock()
-            acl_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            mock_result = \
-                "ACL TOTAL: pkts_processed: 100, pkts_drop: 0, spkts_received: 100"
-            acl_approx_vnf.vnf_execute = mock.Mock(return_value=mock_result)
-            self.assertEqual(mock_result, acl_approx_vnf.get_stats())
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        acl_approx_vnf = AclApproxVnf(name, vnfd)
+        acl_approx_vnf.q_in = mock.MagicMock()
+        acl_approx_vnf.q_out = mock.MagicMock()
+        acl_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        cmd = "quit"
+        self.assertEqual("", acl_approx_vnf.vnf_execute(cmd))
+
+    @mock.patch(SSH_HELPER)
+    def test_get_stats(self, ssh, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        acl_approx_vnf = AclApproxVnf(name, vnfd)
+        acl_approx_vnf.q_in = mock.MagicMock()
+        acl_approx_vnf.q_out = mock.MagicMock()
+        acl_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        result = "ACL TOTAL: pkts_processed: 100, pkts_drop: 0, spkts_received: 100"
+        acl_approx_vnf.vnf_execute = mock.Mock(return_value=result)
+        self.assertEqual(result, acl_approx_vnf.get_stats())
 
     def _get_file_abspath(self, filename):
         curr_path = os.path.dirname(os.path.abspath(__file__))
@@ -300,76 +295,66 @@ class TestAclApproxVnf(unittest.TestCase):
     @mock.patch("yardstick.network_services.vnf_generic.vnf.acl_vnf.hex")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.acl_vnf.eval")
     @mock.patch('yardstick.network_services.vnf_generic.vnf.acl_vnf.open')
-    def test_run_acl(self, mock_open, eval, hex, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh_mock.run = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            acl_approx_vnf = AclApproxVnf(name, vnfd)
-            acl_approx_vnf._build_config = mock.MagicMock()
-            acl_approx_vnf.queue_wrapper = mock.MagicMock()
-            acl_approx_vnf.ssh_helper = mock.MagicMock()
-            acl_approx_vnf.ssh_helper.run = mock.MagicMock()
-            acl_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
-            acl_approx_vnf.vnf_cfg = {'lb_config': 'SW',
-                                      'lb_count': 1,
-                                      'worker_config': '1C/1T',
-                                      'worker_threads': 1}
-            acl_approx_vnf.all_options = {'traffic_type': '4',
-                                          'topology': 'nsb_test_case.yaml'}
-            acl_approx_vnf._run()
-            acl_approx_vnf.ssh_helper.run.assert_called_once()
+    @mock.patch(SSH_HELPER)
+    def test_run_acl(self, ssh, mock_open, mock_eval, mock_hex, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        acl_approx_vnf = AclApproxVnf(name, vnfd)
+        acl_approx_vnf._build_config = mock.MagicMock()
+        acl_approx_vnf.queue_wrapper = mock.MagicMock()
+        acl_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
+        acl_approx_vnf.vnf_cfg = {'lb_config': 'SW',
+                                  'lb_count': 1,
+                                  'worker_config': '1C/1T',
+                                  'worker_threads': 1}
+        acl_approx_vnf.all_options = {'traffic_type': '4',
+                                      'topology': 'nsb_test_case.yaml'}
+        acl_approx_vnf._run()
+        acl_approx_vnf.ssh_helper.run.assert_called_once()
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.acl_vnf.YangModel")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.acl_vnf.find_relative_file")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.Context")
-    def test_instantiate(self, mock_context, mock_yang, mock_find, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            acl_approx_vnf = AclApproxVnf(name, vnfd)
-            acl_approx_vnf.ssh_helper = ssh
-            acl_approx_vnf.deploy_helper = mock.MagicMock()
-            acl_approx_vnf.resource_helper = mock.MagicMock()
-            acl_approx_vnf._build_config = mock.MagicMock()
-            self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
+    @mock.patch(SSH_HELPER)
+    def test_instantiate(self, ssh, mock_context, mock_yang, mock_find, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        acl_approx_vnf = AclApproxVnf(name, vnfd)
+        acl_approx_vnf.deploy_helper = mock.MagicMock()
+        acl_approx_vnf.resource_helper = mock.MagicMock()
+        acl_approx_vnf._build_config = mock.MagicMock()
+        self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
                                                         'rules': ""}}
-            acl_approx_vnf.q_out.put("pipeline>")
-            acl_approx_vnf.WAIT_TIME = 0
-            self.scenario_cfg.update({"nodes": {"vnf__1": ""}})
-            self.assertIsNone(acl_approx_vnf.instantiate(self.scenario_cfg,
-                                                         self.context_cfg))
+        acl_approx_vnf.q_out.put("pipeline>")
+        acl_approx_vnf.WAIT_TIME = 0
+        self.scenario_cfg.update({"nodes": {"vnf__1": ""}})
+        self.assertIsNone(acl_approx_vnf.instantiate(self.scenario_cfg,
+                                                     self.context_cfg))
 
     def test_scale(self, mock_process):
         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
         acl_approx_vnf = AclApproxVnf(name, vnfd)
         flavor = ""
-        self.assertRaises(NotImplementedError, acl_approx_vnf.scale, flavor)
+        with self.assertRaises(NotImplementedError):
+            acl_approx_vnf.scale(flavor)
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_terminate(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            acl_approx_vnf = AclApproxVnf(name, vnfd)
-            acl_approx_vnf._vnf_process = mock.MagicMock()
-            acl_approx_vnf._vnf_process.terminate = mock.Mock()
-            acl_approx_vnf.used_drivers = {"01:01.0": "i40e",
-                                           "01:01.1": "i40e"}
-            acl_approx_vnf.vnf_execute = mock.MagicMock()
-            acl_approx_vnf.ssh_helper = ssh_mock
-            acl_approx_vnf.dpdk_nic_bind = "dpdk_nic_bind.py"
-            acl_approx_vnf._resource_collect_stop = mock.Mock()
-            self.assertEqual(None, acl_approx_vnf.terminate())
+    @mock.patch(SSH_HELPER)
+    def test_terminate(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        acl_approx_vnf = AclApproxVnf(name, vnfd)
+        acl_approx_vnf._vnf_process = mock.MagicMock()
+        acl_approx_vnf._vnf_process.terminate = mock.Mock()
+        acl_approx_vnf.used_drivers = {"01:01.0": "i40e",
+                                       "01:01.1": "i40e"}
+        acl_approx_vnf.vnf_execute = mock.MagicMock()
+        acl_approx_vnf.dpdk_nic_bind = "dpdk_nic_bind.py"
+        acl_approx_vnf._resource_collect_stop = mock.Mock()
+        self.assertEqual(None, acl_approx_vnf.terminate())
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_base.py b/tests/unit/network_services/vnf_generic/vnf/test_base.py
index 8a5d836e0..e1c69e7b3 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_base.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_base.py
@@ -25,6 +25,7 @@ from multiprocessing import Queue
 
 from yardstick.network_services.vnf_generic.vnf.base import \
     QueueFileWrapper, GenericVNF, GenericTrafficGen
+from yardstick.ssh import SSH
 
 IP_PIPELINE_CFG_FILE_TPL = """
 arp_route_tbl = ({port0_local_ip_hex},{port0_netmask_hex},1,"""
@@ -48,9 +49,9 @@ class FileAbsPath(object):
         return file_path
 
 
-def mock_ssh(ssh, spec=None, exec_result=_LOCAL_OBJECT, run_result=_LOCAL_OBJECT):
+def mock_ssh(mock_ssh_type, spec=None, exec_result=_LOCAL_OBJECT, run_result=_LOCAL_OBJECT):
     if spec is None:
-        spec = ssh.SSH
+        spec = SSH
 
     if exec_result is _LOCAL_OBJECT:
         exec_result = 0, "", ""
@@ -58,11 +59,12 @@ def mock_ssh(ssh, spec=None, exec_result=_LOCAL_OBJECT, run_result=_LOCAL_OBJECT
     if run_result is _LOCAL_OBJECT:
         run_result = 0, "", ""
 
-    ssh_mock = mock.Mock(autospec=spec)
-    ssh_mock._get_client.return_value = mock.Mock()
-    ssh_mock.execute.return_value = exec_result
-    ssh_mock.run.return_value = run_result
-    ssh.from_node.return_value = ssh_mock
+    mock_ssh_instance = mock.Mock(autospec=spec)
+    mock_ssh_instance._get_client.return_value = mock.Mock()
+    mock_ssh_instance.execute.return_value = exec_result
+    mock_ssh_instance.run.return_value = run_result
+    mock_ssh_type.from_node.return_value = mock_ssh_instance
+    return mock_ssh_instance
 
 
 class TestQueueFileWrapper(unittest.TestCase):
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py
index f214d66f6..e5503697a 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_cgnapt_vnf.py
@@ -22,6 +22,7 @@ import unittest
 import mock
 
 from tests.unit import STL_MOCKS
+from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
 
 
 STLClient = mock.MagicMock()
@@ -35,6 +36,7 @@ if stl_patch:
     from yardstick.network_services.nfvi.resource import ResourceProfile
 
 TEST_FILE_YAML = 'nsb_test_case.yaml'
+SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 
 
 name = 'vnf__1'
@@ -281,51 +283,45 @@ class TestCgnaptApproxVnf(unittest.TestCase):
         self.assertIsNone(cgnapt_approx_vnf._vnf_process)
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_collect_kpi(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf.q_in = mock.MagicMock()
-            cgnapt_approx_vnf.q_out = mock.MagicMock()
-            cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            cgnapt_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
-            result = {'packets_dropped': 0, 'packets_fwd': 0, 'packets_in': 0}
-            self.assertEqual(result, cgnapt_approx_vnf.collect_kpi())
+    @mock.patch(SSH_HELPER)
+    def test_collect_kpi(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf.q_in = mock.MagicMock()
+        cgnapt_approx_vnf.q_out = mock.MagicMock()
+        cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        cgnapt_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
+        result = {'packets_dropped': 0, 'packets_fwd': 0, 'packets_in': 0}
+        self.assertEqual(result, cgnapt_approx_vnf.collect_kpi())
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_vnf_execute_command(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf.q_in = mock.MagicMock()
-            cgnapt_approx_vnf.q_out = mock.MagicMock()
-            cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            cmd = "quit"
-            self.assertEqual("", cgnapt_approx_vnf.vnf_execute(cmd))
-
-    def test_get_stats(self, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf.q_in = mock.MagicMock()
-            cgnapt_approx_vnf.q_out = mock.MagicMock()
-            cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            mock_result = \
-                "CG-NAPT(.*\n)*Received 100, Missed 0, Dropped 0,Translated 100,ingress"
-            cgnapt_approx_vnf.vnf_execute = mock.Mock(return_value=mock_result)
-            self.assertListEqual(list(mock_result), list(cgnapt_approx_vnf.get_stats()))
+    @mock.patch(SSH_HELPER)
+    def test_vnf_execute_command(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf.q_in = mock.MagicMock()
+        cgnapt_approx_vnf.q_out = mock.MagicMock()
+        cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        cmd = "quit"
+        self.assertEqual("", cgnapt_approx_vnf.vnf_execute(cmd))
+
+    @mock.patch(SSH_HELPER)
+    def test_get_stats(self, ssh, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf.q_in = mock.MagicMock()
+        cgnapt_approx_vnf.q_out = mock.MagicMock()
+        cgnapt_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        result = \
+            "CG-NAPT(.*\n)*Received 100, Missed 0, Dropped 0,Translated 100,ingress"
+        cgnapt_approx_vnf.vnf_execute = mock.Mock(return_value=result)
+        self.assertListEqual(list(result), list(cgnapt_approx_vnf.get_stats()))
 
     def _get_file_abspath(self, filename):
         curr_path = os.path.dirname(os.path.abspath(__file__))
@@ -335,44 +331,37 @@ class TestCgnaptApproxVnf(unittest.TestCase):
     @mock.patch("yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.hex")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.eval")
     @mock.patch('yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.open')
-    def test_run_vcgnapt(self, hex, eval, mock_open, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh_mock.run = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf._build_config = mock.MagicMock()
-            cgnapt_approx_vnf.queue_wrapper = mock.MagicMock()
-            cgnapt_approx_vnf.ssh_helper = mock.MagicMock()
-            cgnapt_approx_vnf.ssh_helper.run = mock.MagicMock()
-            cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
-            cgnapt_approx_vnf._run()
-            cgnapt_approx_vnf.ssh_helper.run.assert_called_once()
+    @mock.patch(SSH_HELPER)
+    def test_run_vcgnapt(self, ssh, mock_hex, mock_eval, mock_open, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf._build_config = mock.MagicMock()
+        cgnapt_approx_vnf.queue_wrapper = mock.MagicMock()
+        cgnapt_approx_vnf.ssh_helper = mock.MagicMock()
+        cgnapt_approx_vnf.ssh_helper.run = mock.MagicMock()
+        cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
+        cgnapt_approx_vnf._run()
+        cgnapt_approx_vnf.ssh_helper.run.assert_called_once()
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.Context")
-    def test_instantiate(self, mock_context, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf.ssh_helper = ssh
-            cgnapt_approx_vnf.deploy_helper = mock.MagicMock()
-            cgnapt_approx_vnf.resource_helper = mock.MagicMock()
-            cgnapt_approx_vnf._build_config = mock.MagicMock()
-            self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
-                                                        'rules': ""}}
-            cgnapt_approx_vnf.q_out.put("pipeline>")
-            cgnapt_vnf.WAIT_TIME = 3
-            self.scenario_cfg.update({"nodes": {"vnf__1": ""}})
-            self.assertIsNone(cgnapt_approx_vnf.instantiate(self.scenario_cfg,
-                                                            self.context_cfg))
+    @mock.patch(SSH_HELPER)
+    def test_instantiate(self, ssh, mock_context, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf.deploy_helper = mock.MagicMock()
+        cgnapt_approx_vnf.resource_helper = mock.MagicMock()
+        cgnapt_approx_vnf._build_config = mock.MagicMock()
+        self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
+                                                    'rules': ""}}
+        cgnapt_approx_vnf.q_out.put("pipeline>")
+        cgnapt_vnf.WAIT_TIME = 3
+        self.scenario_cfg.update({"nodes": {"vnf__1": ""}})
+        self.assertIsNone(cgnapt_approx_vnf.instantiate(self.scenario_cfg,
+                                                        self.context_cfg))
 
     def test_scale(self, mock_process):
         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
@@ -381,42 +370,36 @@ class TestCgnaptApproxVnf(unittest.TestCase):
         self.assertRaises(NotImplementedError, cgnapt_approx_vnf.scale, flavor)
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_terminate(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf._vnf_process = mock.MagicMock()
-            cgnapt_approx_vnf._vnf_process.terminate = mock.Mock()
-            cgnapt_approx_vnf.used_drivers = {"01:01.0": "i40e",
-                                              "01:01.1": "i40e"}
-            cgnapt_approx_vnf.vnf_execute = mock.MagicMock()
-            cgnapt_approx_vnf.ssh_helper = ssh_mock
-            cgnapt_approx_vnf.dpdk_nic_bind = "dpdk_nic_bind.py"
-            cgnapt_approx_vnf._resource_collect_stop = mock.Mock()
-            self.assertEqual(None, cgnapt_approx_vnf.terminate())
+    @mock.patch(SSH_HELPER)
+    def test_terminate(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf._vnf_process = mock.MagicMock()
+        cgnapt_approx_vnf._vnf_process.terminate = mock.Mock()
+        cgnapt_approx_vnf.used_drivers = {"01:01.0": "i40e",
+                                          "01:01.1": "i40e"}
+        cgnapt_approx_vnf.vnf_execute = mock.MagicMock()
+        cgnapt_approx_vnf.dpdk_nic_bind = "dpdk_nic_bind.py"
+        cgnapt_approx_vnf._resource_collect_stop = mock.Mock()
+        self.assertEqual(None, cgnapt_approx_vnf.terminate())
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.cgnapt_vnf.time")
-    def test__vnf_up_post(self, mock_time, mock_cgnapt_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
-            cgnapt_approx_vnf._vnf_process = mock.MagicMock()
-            cgnapt_approx_vnf._vnf_process.terminate = mock.Mock()
-            cgnapt_approx_vnf.vnf_execute = mock.MagicMock()
-            cgnapt_approx_vnf.ssh_helper = ssh_mock
-            cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
-            cgnapt_approx_vnf._resource_collect_stop = mock.Mock()
-            cgnapt_approx_vnf._vnf_up_post()
-            cgnapt_approx_vnf.vnf_execute.assert_called_once()
+    @mock.patch(SSH_HELPER)
+    def test__vnf_up_post(self, ssh, mock_time, mock_cgnapt_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        cgnapt_approx_vnf = CgnaptApproxVnf(name, vnfd)
+        cgnapt_approx_vnf._vnf_process = mock.MagicMock()
+        cgnapt_approx_vnf._vnf_process.terminate = mock.Mock()
+        cgnapt_approx_vnf.vnf_execute = mock.MagicMock()
+        cgnapt_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
+        cgnapt_approx_vnf._resource_collect_stop = mock.Mock()
+        cgnapt_approx_vnf._vnf_up_post()
+        cgnapt_approx_vnf.vnf_execute.assert_called_once()
 
 
 if __name__ == '__main__':
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_iniparser.py b/tests/unit/network_services/vnf_generic/vnf/test_iniparser.py
index b74e5d9fd..15d6adea1 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_iniparser.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_iniparser.py
@@ -45,6 +45,7 @@ key4=
 [section2]
 # here is a comment line
 list2: value5
+key with no value
 ; another comment line
 key5=
 """
@@ -69,15 +70,10 @@ PARSE_TEXT_BAD_3 = """\
 
 PARSE_TEXT_BAD_4 = """\
 [section1]
-no list or key
-"""
-
-PARSE_TEXT_BAD_5 = """\
-[section1]
     bad continuation
 """
 
-PARSE_TEXT_BAD_6 = """\
+PARSE_TEXT_BAD_5 = """\
 [section1]
 =value with no key
 """
@@ -106,7 +102,7 @@ class TestBaseParser(unittest.TestCase):
 
         parser = BaseParser()
 
-        self.assertIsNone(parser.parse())
+        parser.parse([])
 
     def test_not_implemented_methods(self):
         parser = BaseParser()
@@ -132,39 +128,49 @@ class TestConfigParser(unittest.TestCase):
     def test_parse(self, mock_open):
         mock_open.side_effect = self.make_open(PARSE_TEXT_1)
 
-        config_parser = ConfigParser('my_file', {})
+        config_parser = ConfigParser('my_file', [])
         config_parser.parse()
 
-        expected = {
-            'section1': [
-                ['key1', 'value1'],
-                ['list1', 'value2\nvalue3\nvalue4'],
-                ['key2', 'double quote value'],
-                ['key3', 'single quote value'],
-                ['key4', ''],
+        expected = [
+            [
+                'section1',
+                [
+                    ['key1', 'value1'],
+                    ['list1', 'value2\nvalue3\nvalue4'],
+                    ['key2', 'double quote value'],
+                    ['key3', 'single quote value'],
+                    ['key4', ''],
+                ],
             ],
-            'section2': [
-                ['list2', 'value5'],
-                ['key5', ''],
+            [
+                'section2',
+                [
+                    ['list2', 'value5'],
+                    ['key with no value', '@'],
+                    ['key5', ''],
+                ],
             ],
-        }
+        ]
 
-        self.assertDictEqual(config_parser.sections, expected)
+        self.assertEqual(config_parser.sections, expected)
 
     @mock.patch('yardstick.network_services.vnf_generic.vnf.iniparser.open')
     def test_parse_2(self, mock_open):
         mock_open.side_effect = self.make_open(PARSE_TEXT_2)
 
-        config_parser = ConfigParser('my_file', {})
+        config_parser = ConfigParser('my_file', [])
         config_parser.parse()
 
-        expected = {
-            'section1': [
-                ['list1', 'item1\nitem2\nended by eof'],
+        expected = [
+            [
+                'section1',
+                [
+                    ['list1', 'item1\nitem2\nended by eof'],
+                ],
             ],
-        }
+        ]
 
-        self.assertDictEqual(config_parser.sections, expected)
+        self.assertEqual(config_parser.sections, expected)
 
     @mock.patch('yardstick.network_services.vnf_generic.vnf.iniparser.open')
     def test_parse_negative(self, mock_open):
@@ -172,15 +178,14 @@ class TestConfigParser(unittest.TestCase):
             'no section': PARSE_TEXT_BAD_1,
             'incomplete section': PARSE_TEXT_BAD_2,
             'empty section name': PARSE_TEXT_BAD_3,
-            'no list or key': PARSE_TEXT_BAD_4,
-            'bad_continuation': PARSE_TEXT_BAD_5,
-            'value with no key': PARSE_TEXT_BAD_6,
+            'bad_continuation': PARSE_TEXT_BAD_4,
+            'value with no key': PARSE_TEXT_BAD_5,
         }
 
         for bad_reason, bad_text in bad_text_dict.items():
             mock_open.side_effect = self.make_open(bad_text)
 
-            config_parser = ConfigParser('my_file', {})
+            config_parser = ConfigParser('my_file', [])
 
             try:
                 # TODO: replace with assertRaises, when the UT framework supports
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py b/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
index 98eccae4f..cba3d449f 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
@@ -20,14 +20,12 @@ from __future__ import absolute_import
 import os
 import socket
 import unittest
-from collections import OrderedDict
 from itertools import repeat, chain
 from contextlib import contextmanager
 import mock
 
 from tests.unit import STL_MOCKS
 
-
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
 stl_patch.start()
@@ -44,7 +42,6 @@ if stl_patch:
 
 
 class TestCoreTuple(unittest.TestCase):
-
     def test___init__(self):
         core_tuple = CoreSocketTuple('core 5s6')
         self.assertEqual(core_tuple.core_id, 5)
@@ -65,7 +62,6 @@ class TestCoreTuple(unittest.TestCase):
             '5s6',
             'core',
             'core h',
-            'core 5',
             'core 5s',
             'core 5 6',
             'core 5 6h',
@@ -125,7 +121,6 @@ class TestCoreTuple(unittest.TestCase):
 
 
 class TestTotStatsTuple(unittest.TestCase):
-
     def test___new___negative(self):
         with self.assertRaises(TypeError):
             # no values
@@ -141,7 +136,6 @@ class TestTotStatsTuple(unittest.TestCase):
 
 
 class TestProxTestDataTuple(unittest.TestCase):
-
     def test___init__(self):
         prox_test_data = ProxTestDataTuple(1, 2, 3, 4, 5, 6, 7, 8, 9)
         self.assertEqual(prox_test_data.tolerated, 1)
@@ -179,11 +173,12 @@ class TestProxTestDataTuple(unittest.TestCase):
             "TxThroughput": 9 / 1e6,
             "RxThroughput": 1.6 / 1e6,
             "PktSize": 64,
+            "PortSample": 1,
             "LatencyMin": 6.1,
             "LatencyMax": 6.9,
             "LatencyAvg": 6.4,
         }
-        result = prox_test_data.get_samples(64)
+        result = prox_test_data.get_samples(64, port_samples={"PortSample": 1})
         self.assertDictEqual(result, expected)
 
         expected = {
@@ -215,7 +210,6 @@ class TestProxTestDataTuple(unittest.TestCase):
 
 
 class TestPacketDump(unittest.TestCase):
-
     PAYLOAD = "payload"
 
     def test__init__(self):
@@ -290,7 +284,6 @@ no data length value
 
 @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.time')
 class TestProxSocketHelper(unittest.TestCase):
-
     @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.socket')
     def test___init__(self, mock_socket, mock_time):
         expected = mock_socket.socket()
@@ -375,6 +368,13 @@ class TestProxSocketHelper(unittest.TestCase):
         prox.put_command("data")
         mock_socket.sendall.assert_called_once()
 
+    def test_put_command_socket_error(self, mock_time):
+        mock_socket = mock.MagicMock()
+        mock_socket.sendall.side_effect = OSError
+        prox = ProxSocketHelper(mock_socket)
+        prox.put_command("data")
+        mock_socket.sendall.assert_called_once()
+
     def test_get_packet_dump(self, mock_time):
         mock_socket = mock.MagicMock()
         prox = ProxSocketHelper(mock_socket)
@@ -475,11 +475,11 @@ class TestProxSocketHelper(unittest.TestCase):
 
     def test_lat_stats(self, mock_time):
         latency_output = [
-            '1, 2 , 3',       # has white space
-            '4,5',            # too short
+            '1, 2 , 3',  # has white space
+            '4,5',  # too short
             '7,8,9,10.5,11',  # too long with float, but float is in unused portion
-            'twelve,13,14',   # value as English word
-            '15,16.2,17',     # float in used portion
+            'twelve,13,14',  # value as English word
+            '15,16.2,17',  # float in used portion
         ]
 
         mock_socket = mock.MagicMock()
@@ -504,6 +504,14 @@ class TestProxSocketHelper(unittest.TestCase):
         self.assertEqual(mock_socket.sendall.call_count, 5)
         self.assertEqual(result, expected)
 
+    def test_get_all_tot_stats_error(self, mock_time):
+        mock_socket = mock.MagicMock()
+        prox = ProxSocketHelper(mock_socket)
+        prox.get_data = mock.MagicMock(return_value='3,4,5')
+        expected = [0, 0, 0, 0]
+        result = prox.get_all_tot_stats()
+        self.assertEqual(result, expected)
+
     def test_get_all_tot_stats(self, mock_time):
         mock_socket = mock.MagicMock()
         prox = ProxSocketHelper(mock_socket)
@@ -626,79 +634,48 @@ class TestProxSocketHelper(unittest.TestCase):
 
 
 class TestProxDpdkVnfSetupEnvHelper(unittest.TestCase):
-
-    def test_rebind_drivers(self):
-        def find_drivers(*args, **kwargs):
-            setup_helper.used_drivers = used_drivers
-
-        used_drivers = {
-            'a': (1, 'b'),
-            'c': (2, 'd'),
-        }
-
-        vnfd_helper = mock.MagicMock()
-        ssh_helper = mock.MagicMock()
-        scenario_helper = mock.MagicMock()
-        setup_helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
-        setup_helper._find_used_drivers = mock_find = mock.MagicMock(side_effect=find_drivers)
-
-        setup_helper.rebind_drivers()
-        self.assertEqual(mock_find.call_count, 1)
-        self.assertEqual(ssh_helper.execute.call_count, 2)
-        self.assertIn('--force', ssh_helper.execute.call_args[0][0])
-
-        mock_find.reset_mock()
-        ssh_helper.execute.reset_mock()
-        setup_helper.rebind_drivers(False)
-        self.assertEqual(mock_find.call_count, 0)
-        self.assertEqual(ssh_helper.execute.call_count, 2)
-        self.assertNotIn('--force', ssh_helper.execute.call_args[0][0])
-
-
-class TestProxResourceHelper(unittest.TestCase):
-
     def test__replace_quoted_with_value(self):
         # empty string
         input_str = ''
         expected = ''
-        result = ProxResourceHelper._replace_quoted_with_value(input_str, 'cat')
+        result = ProxDpdkVnfSetupEnvHelper._replace_quoted_with_value(input_str, 'cat')
         self.assertEqual(result, expected)
 
         # no quoted substring
         input_str = 'lion tiger bear'
         expected = 'lion tiger bear'
-        result = ProxResourceHelper._replace_quoted_with_value(input_str, 'cat')
+        result = ProxDpdkVnfSetupEnvHelper._replace_quoted_with_value(input_str, 'cat')
         self.assertEqual(result, expected)
 
         # partially quoted substring
         input_str = 'lion "tiger bear'
         expected = 'lion "tiger bear'
-        result = ProxResourceHelper._replace_quoted_with_value(input_str, 'cat')
+        result = ProxDpdkVnfSetupEnvHelper._replace_quoted_with_value(input_str, 'cat')
         self.assertEqual(result, expected)
 
         # one quoted substring
         input_str = 'lion "tiger" bear'
         expected = 'lion "cat" bear'
-        result = ProxResourceHelper._replace_quoted_with_value(input_str, 'cat')
+        result = ProxDpdkVnfSetupEnvHelper._replace_quoted_with_value(input_str, 'cat')
         self.assertEqual(result, expected)
 
         # two quoted substrings
         input_str = 'lion "tiger" bear "shark" whale'
         expected = 'lion "cat" bear "shark" whale'
-        result = ProxResourceHelper._replace_quoted_with_value(input_str, 'cat')
+        result = ProxDpdkVnfSetupEnvHelper._replace_quoted_with_value(input_str, 'cat')
         self.assertEqual(result, expected)
 
         # two quoted substrings, both replaced
         input_str = 'lion "tiger" bear "shark" whale'
         expected = 'lion "cat" bear "cat" whale'
-        result = ProxResourceHelper._replace_quoted_with_value(input_str, 'cat', 2)
+        result = ProxDpdkVnfSetupEnvHelper._replace_quoted_with_value(input_str, 'cat', 2)
         self.assertEqual(result, expected)
 
     def test__get_tx_port(self):
         # no data
         input_data = {'section1': []}
         expected = -1
-        result = ProxResourceHelper._get_tx_port('section1', input_data)
+        result = ProxDpdkVnfSetupEnvHelper._get_tx_port('section1', input_data)
         self.assertEqual(result, expected)
 
         # data for other section
@@ -710,7 +687,7 @@ class TestProxResourceHelper(unittest.TestCase):
             ],
         }
         expected = -1
-        result = ProxResourceHelper._get_tx_port('section1', input_data)
+        result = ProxDpdkVnfSetupEnvHelper._get_tx_port('section1', input_data)
         self.assertEqual(result, expected)
 
         # data for section
@@ -719,7 +696,7 @@ class TestProxResourceHelper(unittest.TestCase):
             ('tx port', '3'),
         ]
         expected = 3
-        result = ProxResourceHelper._get_tx_port('section1', input_data)
+        result = ProxDpdkVnfSetupEnvHelper._get_tx_port('section1', input_data)
         self.assertEqual(result, expected)
 
         # more data for section,
@@ -728,9 +705,499 @@ class TestProxResourceHelper(unittest.TestCase):
             ('tx port', '1', 'and more', 234),
         ])
         expected = 1
-        result = ProxResourceHelper._get_tx_port('section1', input_data)
+        result = ProxDpdkVnfSetupEnvHelper._get_tx_port('section1', input_data)
+        self.assertEqual(result, expected)
+
+    def test_write_prox_config(self):
+        input_data = {}
+        expected = ''
+        result = ProxDpdkVnfSetupEnvHelper.write_prox_config(input_data)
+        self.assertEqual(result, expected)
+
+        input_data = [
+            [
+                'section1',
+                [],
+            ],
+        ]
+        expected = '[section1]'
+        result = ProxDpdkVnfSetupEnvHelper.write_prox_config(input_data)
+        self.assertEqual(result, expected)
+
+        input_data = [
+            [
+                'section1',
+                [],
+            ],
+            [
+                'section2',
+                [
+                    ['key1', 'value1'],
+                    ['__name__', 'not this one'],
+                    ['key2', None],
+                    ['key3', 234],
+                    ['key4', 'multi-line\nvalue'],
+                ],
+            ],
+        ]
+        expected = os.linesep.join([
+            '[section1]',
+            '[section2]',
+            'key1=value1',
+            'key2',
+            'key3=234',
+            'key4=multi-line\n\tvalue',
+        ])
+        result = ProxDpdkVnfSetupEnvHelper.write_prox_config(input_data)
+        self.assertEqual(result, expected)
+
+    def test_rebind_drivers(self):
+        def find_drivers(*args, **kwargs):
+            setup_helper.used_drivers = used_drivers
+
+        used_drivers = {
+            'a': (1, 'b'),
+            'c': (2, 'd'),
+        }
+
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+        setup_helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        setup_helper._find_used_drivers = mock_find = mock.MagicMock(side_effect=find_drivers)
+
+        setup_helper.rebind_drivers()
+        self.assertEqual(mock_find.call_count, 1)
+        self.assertEqual(ssh_helper.execute.call_count, 2)
+        self.assertIn('--force', ssh_helper.execute.call_args[0][0])
+
+        mock_find.reset_mock()
+        ssh_helper.execute.reset_mock()
+        setup_helper.rebind_drivers(False)
+        self.assertEqual(mock_find.call_count, 0)
+        self.assertEqual(ssh_helper.execute.call_count, 2)
+        self.assertNotIn('--force', ssh_helper.execute.call_args[0][0])
+
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
+    def test_build_config_file_no_additional_file(self, mock_find_path):
+        vnf1 = {
+            'prox_args': {'-c': ""},
+            'prox_path': 'd',
+            'prox_config': 'e/f',
+        }
+
+        mock_find_path.side_effect = ['1', '2']
+
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        scenario_helper = ScenarioHelper('vnf1')
+        scenario_helper.scenario_cfg = {
+            'task_path': 'a/b',
+            'options': {
+                'vnf1': vnf1,
+            },
+        }
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.copy_to_target = mock.MagicMock(return_value='3')
+        helper.generate_prox_config_file = mock.MagicMock(return_value='4')
+        helper.upload_prox_config = mock.MagicMock(return_value='5')
+
+        self.assertEqual(helper.additional_files, {})
+        self.assertNotEqual(helper.prox_config_dict, '4')
+        self.assertNotEqual(helper.remote_path, '5')
+        helper.build_config_file()
+        self.assertEqual(helper.additional_files, {})
+        self.assertEqual(helper.prox_config_dict, '4')
+        self.assertEqual(helper.remote_path, '5')
+
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
+    def test_build_config_file_additional_file_string(self, mock_find_path):
+        vnf1 = {
+            'prox_args': {'-c': ""},
+            'prox_path': 'd',
+            'prox_config': 'e/f',
+            'prox_files': 'g/h.i',
+        }
+
+        mock_find_path.side_effect = ['1', '2']
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        scenario_helper = ScenarioHelper('vnf1')
+        scenario_helper.scenario_cfg = {
+            'task_path': 'a/b',
+            'options': {
+                'vnf1': vnf1,
+            },
+        }
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.copy_to_target = mock.MagicMock(side_effect=['33', '34', '35'])
+        helper.generate_prox_config_file = mock.MagicMock(return_value='44')
+        helper.upload_prox_config = mock.MagicMock(return_value='55')
+
+        self.assertEqual(helper.additional_files, {})
+        expected = {'h.i': '33'}
+        helper.build_config_file()
+        self.assertDictEqual(helper.additional_files, expected)
+
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
+    def test_build_config_file_additional_file(self, mock_find_path):
+        vnf1 = {
+            'prox_args': {'-c': ""},
+            'prox_path': 'd',
+            'prox_config': 'e/f',
+            'prox_files': [
+                'g/h.i',
+                'j/k/l',
+                'm_n',
+            ],
+        }
+
+        mock_find_path.side_effect = ['1', '2']
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        scenario_helper = ScenarioHelper('vnf1')
+        scenario_helper.scenario_cfg = {
+            'task_path': 'a/b',
+            'options': {
+                'vnf1': vnf1,
+            },
+        }
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.copy_to_target = mock.MagicMock(side_effect=['33', '34', '35'])
+        helper.generate_prox_config_file = mock.MagicMock(return_value='44')
+        helper.upload_prox_config = mock.MagicMock(return_value='55')
+
+        self.assertEqual(helper.additional_files, {})
+        self.assertNotEqual(helper.prox_config_dict, '44')
+        self.assertNotEqual(helper.remote_path, '55')
+        expected = {'h.i': '33', 'l': '34', 'm_n': '35'}
+        helper.build_config_file()
+        self.assertDictEqual(helper.additional_files, expected)
+        self.assertEqual(helper.prox_config_dict, '44')
+        self.assertEqual(helper.remote_path, '55')
+
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
+    def test_build_config(self, mock_find_path):
+        vnf1 = {
+            'prox_args': {'-f': ""},
+            'prox_path': '/opt/nsb_bin/prox',
+            'prox_config': 'configs/gen_l2fwd-2.cfg',
+            'prox_files': [
+                'g/h.i',
+                'j/k/l',
+                'm_n',
+            ],
+        }
+
+        mock_find_path.side_effect = ['1', '2']
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        ssh_helper.provision_tool.return_value = "/opt/nsb_bin/prox"
+        scenario_helper = ScenarioHelper('vnf1')
+        scenario_helper.scenario_cfg = {
+            'task_path': 'a/b',
+            'options': {
+                'vnf1': vnf1,
+            },
+        }
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.remote_path = "/tmp/prox.cfg"
+        prox_cmd = helper.build_config()
+        expected = "sudo bash -c 'cd /opt/nsb_bin; /opt/nsb_bin/prox -o cli -f  -f /tmp/prox.cfg '"
+        self.assertEqual(prox_cmd, expected)
+
+    def test__insert_additional_file(self):
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.additional_files = {"ipv4.lua": "/tmp/ipv4.lua"}
+        res = helper._insert_additional_file('dofile("ipv4.lua")')
+        self.assertEqual(res, 'dofile("/tmp/ipv4.lua")')
+
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.ConfigParser')
+    def test_generate_prox_config_file(self, mock_parser_type):
+        def init(*args):
+            if sections_data:
+                args[-1].extend(sections_data)
+            return mock.MagicMock()
+
+        sections_data = []
+
+        mock_parser_type.side_effect = init
+
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.additional_files = {}
+
+        expected = []
+        result = helper.generate_prox_config_file('a/b')
+        self.assertEqual(result, expected)
+
+        helper.additional_files = {"ipv4.lua": "/tmp/ipv4.lua"}
+
+        helper.remote_prox_file_name = 'remote'
+        vnfd_helper.interfaces = [
+            {
+                'virtual-interface': {
+                    'dst_mac': '00:00:00:de:ad:88',
+                },
+            },
+            {
+                'virtual-interface': {
+                    'dst_mac': '00:00:00:de:ad:ee',
+                },
+            },
+            {
+                'virtual-interface': {
+                    'dst_mac': '00:00:00:de:ad:ff',
+                },
+            },
+        ]
+        sections_data = [
+            [
+                'lua',
+                [
+                    ['dofile("ipv4.lua")', ''],
+                ],
+            ],
+            [
+                'port 0',
+                [
+                    ['ip', ''],
+                    ['mac', 'foo'],
+                    ['dst mac', '@@2'],
+                    ['tx port', '1'],
+                ],
+            ],
+            [
+                'port 2',
+                [
+                    ['ip', ''],
+                    ['$sut_mac0', '@@dst_mac0'],
+                    ['tx port', '0'],
+                    ['single', '@'],
+                    ['user_table', 'dofile("ipv4.lua")'],
+                    ['missing_addtional_file', 'dofile("nosuch")'],
+                ],
+            ],
+        ]
+
+        expected = [
+            [
+                'lua',
+                [
+                    ['dofile("/tmp/ipv4.lua")', ''],
+                ],
+            ],
+            [
+                'port 0',
+                [
+                    ['ip', ''],
+                    ['mac', 'hardware'],
+                    ['dst mac', '00:00:00:de:ad:ff'],
+                    ['tx port', '1'],
+                ],
+            ],
+            [
+                'port 2',
+                [
+                    ['ip', ''],
+                    ['$sut_mac0', '00 00 00 de ad 88'],
+                    ['tx port', '0'],
+                    ['single', '@'],
+                    ['user_table', 'dofile("/tmp/ipv4.lua")'],
+                    ['missing_addtional_file', 'dofile("nosuch")'],
+                ],
+            ],
+        ]
+        result = helper.generate_prox_config_file('/c/d/e')
+        self.assertEqual(result, expected, str(result))
+
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.ConfigParser')
+    def test_generate_prox_config_file_negative(self, mock_parser_type):
+        def init(*args):
+            args[-1].update(sections_data)
+            return mock.MagicMock()
+
+        sections_data = {}
+
+        mock_parser_type.side_effect = init
+
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.additional_files = {}
+        helper.remote_prox_file_name = 'remote'
+        vnfd_helper.interfaces = [
+            {
+                'virtual-interface': {
+                    'dpdk_port_num': 3,
+                    'dst_mac': '00:00:00:de:ad:88',
+                },
+            },
+            {
+                'virtual-interface': {
+                    'dpdk_port_num': 5,
+                    'dst_mac': '00:00:00:de:ad:ff',
+                },
+            },
+            {
+                'virtual-interface': {
+                    'dpdk_port_num': 7,
+                    'dst_mac': '00:00:00:de:ad:ff',
+                },
+            },
+        ]
+        sections_data = {
+            'port 3': [
+                ['ip', ''],
+                ['mac', 'foo'],
+                ['dst mac', ''],
+            ],
+            'port 5': [
+                ['ip', ''],
+                ['dst mac', ''],
+                ['tx port', '0'],
+                ['???', 'dofile "here" 23'],
+            ],
+        }
+
+        with self.assertRaises(Exception):
+            helper.generate_prox_config_file('a/b')
+
+    def test_generate_prox_lua_file(self):
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.LUA_PARAMETER_NAME = 'sut'
+
+        expected = ''
+        result = helper.generate_prox_lua_file()
         self.assertEqual(result, expected)
 
+        vnfd_helper.interfaces = [
+            {
+                'local_ip': '10.20.30.40',
+                'dst_ip': '10.11.12.13',
+                'virtual-interface': {
+                    'dpdk_port_num': 3,
+                },
+            },
+            {
+                'local_ip': '10.20.30.45',
+                'dst_ip': '10.11.12.19',
+                'virtual-interface': {
+                    'dpdk_port_num': 7,
+                },
+            },
+        ]
+
+        expected = os.linesep.join([
+            'sut_hex_ip_port_3:"0a 14 1e 28"',
+            'sut_ip_port_3:"10.20.30.40"',
+            'gen_hex_ip_port_3:"0a 0b 0c 0d"',
+            'gen_ip_port_3:"10.11.12.13"',
+
+            'sut_hex_ip_port_7:"0a 14 1e 2d"',
+            'sut_ip_port_7:"10.20.30.45"',
+            'gen_hex_ip_port_7:"0a 0b 0c 13"',
+            'gen_ip_port_7:"10.11.12.19"',
+        ])
+        result = helper.generate_prox_lua_file()
+        self.assertEqual(result, expected)
+
+    def test_upload_prox_lua(self):
+        def identity(*args):
+            return args
+
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.generate_prox_lua_file = mock.MagicMock(return_value=234)
+        helper.put_string_to_file = identity
+
+        expected = ''
+        result = helper.upload_prox_lua('my_dir', {})
+        self.assertEqual(result, expected)
+
+        input_data = {
+            'lua': {
+                'key1': 'value1 ("inside") tail',
+                'key2': 'value2',
+                'key3 ("key_side") head': 'value3',
+            },
+        }
+
+        expected = 234, 'my_dir/key_side'
+        result = helper.upload_prox_lua('my_dir', input_data)
+        self.assertEqual(result, expected)
+
+    def test_put_string_to_file(self):
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+
+        expected = 'a/b'
+        result = helper.put_string_to_file('my long string', 'a/b')
+        self.assertEqual(result, expected)
+
+    def test__build_pipeline_kwarags(self):
+        vnfd_helper = mock.MagicMock()
+        ssh_helper = mock.MagicMock()
+        ssh_helper.provision_tool.return_value = "/tmp/nosuch"
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper._build_pipeline_kwargs()
+        self.assertEqual(helper.pipeline_kwargs, {'tool_path': '/tmp/nosuch', 'tool_dir': '/tmp'})
+
+    def test_copy_to_target(self):
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        expected = '/tmp/c'
+        result = helper.copy_to_target('a/b', 'c')
+        self.assertEqual(result, expected)
+
+    def test_upload_prox_config(self):
+        vnfd_helper = mock.MagicMock()
+        vnfd_helper.interfaces = []
+        ssh_helper = mock.MagicMock()
+        scenario_helper = mock.MagicMock()
+
+        helper = ProxDpdkVnfSetupEnvHelper(vnfd_helper, ssh_helper, scenario_helper)
+        helper.write_prox_config = mock.MagicMock(return_value='a long string')
+        expected = '/tmp/a'
+        result = helper.upload_prox_config('a', {})
+        self.assertEqual(result, expected)
+
+
+class TestProxResourceHelper(unittest.TestCase):
     def test_line_rate_to_pps(self):
         expected = 0.25 * 1e8
         result = ProxResourceHelper.line_rate_to_pps(180, 4)
@@ -754,43 +1221,9 @@ class TestProxResourceHelper(unittest.TestCase):
         result = ProxResourceHelper.find_pci('target', input_str_list)
         self.assertTrue(result)
 
-    def test_write_prox_config(self):
-        input_data = {}
-        expected = ''
-        result = ProxResourceHelper.write_prox_config(input_data)
-        self.assertEqual(result, expected)
-
-        input_data = {
-            'section1': [],
-        }
-        expected = '[section1]'
-        result = ProxResourceHelper.write_prox_config(input_data)
-        self.assertEqual(result, expected)
-
-        input_data = OrderedDict([
-            ('section1', []),
-            (
-                'section2', [
-                    ('key1', 'value1'),
-                    ('__name__', 'not this one'),
-                    ('key2', None),
-                    ('key3', 234),
-                    ('key4', 'multi-line\nvalue'),
-                ]
-            )
-        ])
-        expected = os.linesep.join([
-            '[section1]',
-            '[section2]',
-            'key1=value1',
-            'key2',
-            'key3=234',
-            'key4=multi-line\n\tvalue',
-        ])
-        result = ProxResourceHelper.write_prox_config(input_data)
-        self.assertEqual(result, expected)
-
-    def test_sut(self):
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.RETRY_INTERVAL', 0)
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.ProxSocketHelper')
+    def test_sut(self, mock_socket_helper):
         helper = ProxResourceHelper(mock.MagicMock())
         self.assertIsNone(helper.client)
         result = helper.sut
@@ -812,54 +1245,18 @@ class TestProxResourceHelper(unittest.TestCase):
         self.assertIs(result, helper._cpu_topology)
         self.assertIs(result, helper.cpu_topology)
 
-    def test_vpci_to_if_name_map(self):
-        setup_helper = mock.MagicMock()
-        setup_helper.vnfd_helper.interfaces = []
-
-        helper = ProxResourceHelper(setup_helper)
-        self.assertIsNone(helper._vpci_to_if_name_map)
-        result = helper.vpci_to_if_name_map
-        self.assertEqual(result, {})
-        self.assertIs(result, helper._vpci_to_if_name_map)
-        self.assertIs(result, helper.vpci_to_if_name_map)
-
-        setup_helper.vnfd_helper.interfaces = [
-            {
-                'name': 'vnf1',
-                'virtual-interface': {
-                    'vpci': '0000:01.02.03',
-                },
-            },
-            {
-                'name': 'vnf2',
-                'virtual-interface': {
-                    'vpci': '0000:04.05.06',
-                },
-            },
-        ]
-        expected = {
-            '0000:01.02.03': 'vnf1',
-            '0000:04.05.06': 'vnf2',
-        }
-        helper = ProxResourceHelper(setup_helper)
-        self.assertIsNone(helper._vpci_to_if_name_map)
-        result = helper.vpci_to_if_name_map
-        self.assertDictEqual(result, expected)
-        self.assertIs(result, helper._vpci_to_if_name_map)
-        self.assertIs(result, helper.vpci_to_if_name_map)
-
     def test_test_cores(self):
         setup_helper = mock.MagicMock()
+        setup_helper.prox_config_dict = {}
+
         helper = ProxResourceHelper(setup_helper)
-        helper.prox_config_dict = {}
         helper._cpu_topology = []
 
         expected = []
         result = helper.test_cores
         self.assertEqual(result, expected)
 
-        helper = ProxResourceHelper(setup_helper)
-        helper.prox_config_dict = OrderedDict([
+        setup_helper.prox_config_dict = [
             ('section1', []),
             ('section2', [
                 ('a', 'b'),
@@ -878,7 +1275,9 @@ class TestProxResourceHelper(unittest.TestCase):
                 ('index', 7),
                 ('mode', 'gen'),
             ]),
-        ])
+        ]
+
+        helper = ProxResourceHelper(setup_helper)
         helper._cpu_topology = {
             1: {
                 3: {
@@ -903,18 +1302,146 @@ class TestProxResourceHelper(unittest.TestCase):
         self.assertIs(result, helper._test_cores)
         self.assertIs(result, helper.test_cores)
 
+    def test_get_test_type(self):
+        setup_helper = mock.MagicMock()
+        setup_helper.prox_config_dict = {}
+
+        helper = ProxResourceHelper(setup_helper)
+        setup_helper.prox_config_dict = [
+            ('global', [
+                ('name', helper.PROX_CORE_MPLS_TEST)
+            ]),
+            ('section2', [
+                ('a', 'b'),
+                ('c', 'd'),
+            ]),
+            ('core 1', []),
+            ('core 2', [
+                ('index', 8),
+                ('mode', ''),
+            ]),
+            ('core 3', [
+                ('index', 5),
+                ('mode', 'gen'),
+            ]),
+            ('core 4', [
+                ('index', 7),
+                ('mode', 'gen'),
+            ]),
+        ]
+        test_type = helper.get_test_type()
+        self.assertEqual(test_type, helper.PROX_CORE_MPLS_TEST)
+
+    def test_get_cores(self):
+        setup_helper = mock.MagicMock()
+        setup_helper.prox_config_dict = {}
+
+        helper = ProxResourceHelper(setup_helper)
+        helper._cpu_topology = {
+            0: {
+                1: {
+                    5: (5, 1, 0)
+                },
+                2: {
+                    6: (6, 2, 0)
+                },
+                3: {
+                    7: (7, 3, 0)
+                },
+                4: {
+                    8: (8, 3, 0)
+                },
+            }
+        }
+
+        setup_helper.prox_config_dict = [
+            ('section1', []),
+            ('section2', [
+                ('a', 'b'),
+                ('c', 'd'),
+            ]),
+            ('core 1', []),
+            ('core 2', [
+                ('index', 8),
+                ('mode', ''),
+            ]),
+            ('core 3', [
+                ('index', 5),
+                ('mode', 'gen'),
+            ]),
+            ('core 4', [
+                ('index', 7),
+                ('mode', 'gen'),
+            ]),
+        ]
+
+        expected = [7, 8]
+        result = helper.get_cores(helper.PROX_CORE_GEN_MODE)
+        self.assertEqual(result, expected)
+
+    def test_get_cores_mpls(self):
+        setup_helper = mock.MagicMock()
+        setup_helper.prox_config_dict = {}
+
+        helper = ProxResourceHelper(setup_helper)
+        helper._cpu_topology = {
+            0: {
+                1: {
+                    5: (5, 1, 0)
+                },
+                2: {
+                    6: (6, 2, 0)
+                },
+                3: {
+                    7: (7, 3, 0)
+                },
+                4: {
+                    8: (8, 3, 0)
+                },
+            }
+        }
+
+        setup_helper.prox_config_dict = [
+            ('section1', []),
+            ('section2', [
+                ('a', 'b'),
+                ('c', 'd'),
+            ]),
+            ('core 1', []),
+            ('core 2', [
+                ('index', 8),
+                ('mode', ''),
+            ]),
+            ('core 3', [
+                ('index', 5),
+                ('mode', 'gen'),
+                ('name', 'tagged'),
+            ]),
+            ('core 4', [
+                ('index', 7),
+                ('mode', 'gen'),
+                ('name', 'udp'),
+            ]),
+        ]
+
+        expected_tagged = [7]
+        expected_plain = [8]
+        result_tagged, result_plain = helper.get_cores_mpls(helper.PROX_CORE_GEN_MODE)
+        self.assertEqual(result_tagged, expected_tagged)
+        self.assertEqual(result_plain, expected_plain)
+
     def test_latency_cores(self):
         setup_helper = mock.MagicMock()
+        setup_helper.prox_config_dict = {}
+
         helper = ProxResourceHelper(setup_helper)
-        helper.prox_config_dict = {}
         helper._cpu_topology = []
 
         expected = []
         result = helper.latency_cores
         self.assertEqual(result, expected)
 
-        helper = ProxResourceHelper(setup_helper)
-        helper.prox_config_dict = OrderedDict([
+        setup_helper.prox_config_dict = [
             ('section1', []),
             ('section2', [
                 ('a', 'b'),
@@ -933,7 +1460,9 @@ class TestProxResourceHelper(unittest.TestCase):
                 ('index', 7),
                 ('mode', 'lat'),
             ]),
-        ])
+        ]
+
+        helper = ProxResourceHelper(setup_helper)
         helper._cpu_topology = {
             1: {
                 3: {
@@ -958,74 +1487,30 @@ class TestProxResourceHelper(unittest.TestCase):
         self.assertIs(result, helper._latency_cores)
         self.assertIs(result, helper.latency_cores)
 
-    def test_start_collect(self):
+    def test_run_traffic(self):
         setup_helper = mock.MagicMock()
         helper = ProxResourceHelper(setup_helper)
-        self.assertIsNone(helper.start_collect())
+        traffic_proifle = mock.MagicMock(**{"done": True})
+        helper.run_traffic(traffic_proifle)
+        self.assertEqual(helper._terminated.value, 1)
 
-    def test_terminate(self):
+    def test__run_traffic_once(self):
         setup_helper = mock.MagicMock()
         helper = ProxResourceHelper(setup_helper)
-        self.assertIsNone(helper.terminate())
-
-    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
-    def test_get_process_args_no_additional_file(self, mock_find_path):
-        vnf1 = {
-            'prox_args': 'c',
-            'prox_path': 'd',
-            'prox_config': 'e/f',
-        }
+        traffic_proifle = mock.MagicMock(**{"done": True})
+        helper._run_traffic_once(traffic_proifle)
+        self.assertEqual(helper._terminated.value, 1)
 
-        mock_find_path.side_effect = ['1', '2']
+    def test_start_collect(self):
         setup_helper = mock.MagicMock()
-        setup_helper.scenario_helper = ScenarioHelper('vnf1')
-        setup_helper.scenario_helper.scenario_cfg = {
-            'task_path': 'a/b',
-            'options': {
-                'vnf1': vnf1,
-            },
-        }
-
         helper = ProxResourceHelper(setup_helper)
-        helper.copy_to_target = mock.MagicMock(return_value='3')
-        helper.generate_prox_config_file = mock.MagicMock(return_value='4')
-        helper.upload_prox_config = mock.MagicMock(return_value='5')
-
-        expected = 'c', 'd', '5'
-        result = helper.get_process_args()
-        self.assertEqual(result, expected)
-        self.assertFalse(helper.additional_file)
-        self.assertIsNone(helper.remote_prox_file_name)
-
-    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
-    def test_get_process_args_additional_file(self, mock_find_path):
-        vnf1 = {
-            'prox_args': 'c',
-            'prox_path': 'd',
-            'prox_config': 'e/f',
-            'prox_files': 'g/h',
-        }
+        self.assertIsNone(helper.start_collect())
 
-        mock_find_path.side_effect = ['1', '2']
+    def test_terminate(self):
         setup_helper = mock.MagicMock()
-        setup_helper.scenario_helper = ScenarioHelper('vnf1')
-        setup_helper.scenario_helper.scenario_cfg = {
-            'task_path': 'a/b',
-            'options': {
-                'vnf1': vnf1,
-            },
-        }
-
         helper = ProxResourceHelper(setup_helper)
-        helper.copy_to_target = mock.MagicMock(return_value='33')
-        helper.generate_prox_config_file = mock.MagicMock(return_value='44')
-        helper.upload_prox_config = mock.MagicMock(return_value='55')
-
-        expected = 'c', 'd', '55'
-        result = helper.get_process_args()
-        self.assertEqual(result, expected)
-        self.assertTrue(helper.additional_file)
-        self.assertEqual(helper.remote_prox_file_name, '33')
+        with self.assertRaises(NotImplementedError):
+            helper.terminate()
 
     def test_up_post(self):
         setup_helper = mock.MagicMock()
@@ -1048,20 +1533,69 @@ class TestProxResourceHelper(unittest.TestCase):
         result = helper.execute('my_command')
         self.assertIsNone(result)
 
-    def test_copy_to_target(self):
+    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.time')
+    def test_traffic_context(self, mock_time):
         setup_helper = mock.MagicMock()
+        setup_helper.prox_config_dict = {}
+
         helper = ProxResourceHelper(setup_helper)
-        expected = '/tmp/c'
-        result = helper.copy_to_target('a/b', 'c')
-        self.assertEqual(result, expected)
+        helper._cpu_topology = {
+            0: {
+                1: {
+                    5: (5, 1, 0)
+                },
+                2: {
+                    6: (6, 2, 0)
+                },
+                3: {
+                    7: (7, 3, 0)
+                },
+                4: {
+                    8: (8, 3, 0)
+                },
+            }
+        }
+
+        setup_helper.prox_config_dict = [
+            ('global', [
+                ('name', helper.PROX_CORE_MPLS_TEST)
+            ]),
+            ('section1', []),
+            ('section2', [
+                ('a', 'b'),
+                ('c', 'd'),
+            ]),
+            ('core 1', []),
+            ('core 2', [
+                ('index', 8),
+                ('mode', ''),
+            ]),
+            ('core 3', [
+                ('index', 5),
+                ('mode', 'gen'),
+                ('name', 'tagged'),
+            ]),
+            ('core 4', [
+                ('index', 7),
+                ('mode', 'gen'),
+                ('name', 'udp'),
+            ]),
+        ]
 
-    def test_upload_prox_config(self):
         setup_helper = mock.MagicMock()
-        helper = ProxResourceHelper(setup_helper)
-        helper.write_prox_config = mock.MagicMock(return_value='a long string')
-        expected = '/tmp/a'
-        result = helper.upload_prox_config('a', {})
-        self.assertEqual(result, expected)
+        setup_helper.vnfd_helper.interfaces = []
+
+        client = mock.MagicMock()
+        client.hz.return_value = 2
+        client.port_stats.return_value = tuple(range(12))
+
+        helper.client = client
+        helper.get_latency = mock.MagicMock(return_value=[3.3, 3.6, 3.8])
+
+        helper._test_cores = [3, 4]
+
+        with helper.traffic_context(64, 1):
+            pass
 
     @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.time')
     def test_run_test(self, mock_time):
@@ -1088,220 +1622,25 @@ class TestProxResourceHelper(unittest.TestCase):
         with self.assertRaises(AssertionError):
             helper.run_test(980, 15, 45)
 
-        setup_helper.vnfd_helper.interfaces = ['a', 'b', 'c', 'd']
-        helper._test_cores = [3, 4]
-
-        expected = ProxTestDataTuple(0.0, 2.0, 6, 7, 8, [3.3, 3.6, 3.8], 6, 7, 1.3e7)
-        result = helper.run_test(230, 60, 65)
-        self.assertEqual(result, expected)
-
-    def test_generate_prox_lua_file(self):
-        setup_helper = mock.MagicMock()
-        setup_helper.vnfd_helper.interfaces = []
-
-        helper = ProxResourceHelper(setup_helper)
-        helper.LUA_PARAMETER_NAME = 'sut'
-
-        expected = ''
-        result = helper.generate_prox_lua_file()
-        self.assertEqual(result, expected)
-
         setup_helper.vnfd_helper.interfaces = [
-            {
-                'local_ip': '10.20.30.40',
-                'dst_ip': '10.11.12.13',
-                'virtual-interface': {
-                    'dpdk_port_num': 3,
-                },
-            },
-            {
-                'local_ip': '10.20.30.45',
-                'dst_ip': '10.11.12.19',
-                'virtual-interface': {
-                    'dpdk_port_num': 7,
-                },
-            },
+            {'name': 'a', 'virtual-interface': {'vpci': 'z'}},
+            {'name': 'b', 'virtual-interface': {'vpci': 'y'}},
+            {'name': 'c', 'virtual-interface': {'vpci': 'x'}},
+            {'name': 'd', 'virtual-interface': {'vpci': 'w'}},
         ]
+        helper._test_cores = [3, 4]
 
-        expected = os.linesep.join([
-            'sut_hex_ip_port_3:"0a 14 1e 28"',
-            'sut_ip_port_3:"10.20.30.40"',
-            'gen_hex_ip_port_3:"0a 0b 0c 0d"',
-            'gen_ip_port_3:"10.11.12.13"',
-
-            'sut_hex_ip_port_7:"0a 14 1e 2d"',
-            'sut_ip_port_7:"10.20.30.45"',
-            'gen_hex_ip_port_7:"0a 0b 0c 13"',
-            'gen_ip_port_7:"10.11.12.19"',
-        ])
-        result = helper.generate_prox_lua_file()
-        self.assertEqual(result, expected)
-
-    def test_upload_prox_lua(self):
-        def identity(*args):
-            return args
-
-        setup_helper = mock.MagicMock()
-        setup_helper.vnfd_helper.interfaces = []
-
-        helper = ProxResourceHelper(setup_helper)
-        helper.generate_prox_lua_file = mock.MagicMock(return_value=234)
-        helper.put_string_to_file = identity
-
-        expected = ''
-        result = helper.upload_prox_lua('my_dir', {})
-        self.assertEqual(result, expected)
-
-        input_data = {
-            'lua': {
-                'key1': 'value1 ("inside") tail',
-                'key2': 'value2',
-                'key3 ("key_side") head': 'value3',
-            },
-        }
-
-        expected = 234, 'my_dir/key_side'
-        result = helper.upload_prox_lua('my_dir', input_data)
-        self.assertEqual(result, expected)
-
-    def test_put_string_to_file(self):
-        setup_helper = mock.MagicMock()
-        setup_helper.vnfd_helper.interfaces = []
-
-        helper = ProxResourceHelper(setup_helper)
-
-        expected = 'a/b'
-        result = helper.put_string_to_file('my long string', 'a/b')
-        self.assertEqual(result, expected)
-
-    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.ConfigParser')
-    def test_generate_prox_config_file(self, mock_parser_type):
-        def init(*args):
-            args[-1].update(sections_data)
-            return mock.MagicMock()
-
-        sections_data = {}
-
-        mock_parser_type.side_effect = init
-
-        setup_helper = mock.MagicMock()
-        setup_helper.vnfd_helper.interfaces = []
-
-        helper = ProxResourceHelper(setup_helper)
-        helper.additional_file = False
-
-        expected = {}
-        result = helper.generate_prox_config_file('a/b')
-        self.assertEqual(result, expected)
-
-        helper.additional_file = True
-        helper.remote_prox_file_name = 'remote'
-        setup_helper.vnfd_helper.interfaces = [
-            {
-                'virtual-interface': {
-                    'dpdk_port_num': 3,
-                    'dst_mac': '00:00:00:de:ad:88',
-                },
-            },
-            {
-                'virtual-interface': {
-                    'dpdk_port_num': 5,
-                    'dst_mac': '00:00:00:de:ad:ff',
-                },
-            },
-            {
-                'virtual-interface': {
-                    'dpdk_port_num': 7,
-                    'dst_mac': '00:00:00:de:ad:ff',
-                },
-            },
-        ]
-        sections_data = {
-            'port 3': [
-                ['ip', ''],
-                ['mac', 'foo'],
-                ['dst mac', ''],
-                ['tx port', '1'],
-            ],
-            'port 5': [
-                ['ip', ''],
-                ['dst mac', ''],
-                ['tx port', '0'],
-                ['single'],
-                ['???', 'dofile "here" 23'],
-            ],
-        }
-
-        expected = {
-            'port 3': [
-                ['ip', ''],
-                ['mac', 'hardware'],
-                ['dst mac', '00:00:00:de:ad:ff'],
-                ['tx port', '1'],
-            ],
-            'port 5': [
-                ['ip', ''],
-                ['dst mac', '00:00:00:de:ad:88'],
-                ['tx port', '0'],
-                ['single'],
-                ['???', 'dofile "remote" 23'],
-            ],
-        }
-        result = helper.generate_prox_config_file('a/b')
-        self.assertDictEqual(result, expected)
-
-    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.ConfigParser')
-    def test_generate_prox_config_file_negative(self, mock_parser_type):
-        def init(*args):
-            args[-1].update(sections_data)
-            return mock.MagicMock()
-
-        sections_data = {}
-
-        mock_parser_type.side_effect = init
-
-        setup_helper = mock.MagicMock()
-        setup_helper.vnfd_helper.interfaces = []
-
-        helper = ProxResourceHelper(setup_helper)
-        helper.additional_file = False
-        helper.remote_prox_file_name = 'remote'
-        setup_helper.vnfd_helper.interfaces = [
-            {
-                'virtual-interface': {
-                    'dpdk_port_num': 3,
-                    'dst_mac': '00:00:00:de:ad:88',
-                },
-            },
-            {
-                'virtual-interface': {
-                    'dpdk_port_num': 5,
-                    'dst_mac': '00:00:00:de:ad:ff',
-                },
-            },
-            {
-                'virtual-interface': {
-                    'dpdk_port_num': 7,
-                    'dst_mac': '00:00:00:de:ad:ff',
-                },
-            },
-        ]
-        sections_data = {
-            'port 3': [
-                ['ip', ''],
-                ['mac', 'foo'],
-                ['dst mac', ''],
-            ],
-            'port 5': [
-                ['ip', ''],
-                ['dst mac', ''],
-                ['tx port', '0'],
-                ['???', 'dofile "here" 23'],
-            ],
+        expected_test_data = ProxTestDataTuple(0.0, 2.0, 6, 7, 8, [3.3, 3.6, 3.8], 6, 7, 1.3e7)
+        expected_port_samples = {
+            'a': {'in_packets': 6, 'out_packets': 7},
+            'b': {'in_packets': 6, 'out_packets': 7},
+            'c': {'in_packets': 6, 'out_packets': 7},
+            'd': {'in_packets': 6, 'out_packets': 7},
         }
-
-        with self.assertRaises(Exception):
-            helper.generate_prox_config_file('a/b')
+        test_data, port_samples = helper.run_test(230, 60, 65)
+        self.assertEqual(test_data, expected_test_data, '\n'.join(str(x) for x in test_data))
+        self.assertEqual(port_samples, expected_port_samples,
+                         '\n'.join(str(x) for x in port_samples))
 
     def test_get_latency(self):
         setup_helper = mock.MagicMock()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py
index c727cb7fb..4b115f2d6 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py
@@ -17,6 +17,7 @@
 
 from __future__ import absolute_import
 
+import errno
 import os
 import unittest
 import mock
@@ -376,50 +377,25 @@ class TestProxApproxVnf(unittest.TestCase):
         mock_ssh(ssh)
 
         prox_approx_vnf = ProxApproxVnf(NAME, self.VNFD0)
+        prox_approx_vnf.scenario_helper.scenario_cfg = self.SCENARIO_CFG
+        prox_approx_vnf.ssh_helper.provision_tool.return_value = '/tool_path12/tool_file34'
+        prox_approx_vnf.setup_helper.remote_path = 'configs/file56.cfg'
 
-        filewrapper = mock.MagicMock()
-        config_path = self.SCENARIO_CFG['options']["vnf__1"]["prox_config"]
-        prox_path = self.SCENARIO_CFG['options']["vnf__1"]["prox_path"]
-        prox_args = self.SCENARIO_CFG['options']["vnf__1"]["prox_args"]
-        prox_approx_vnf.WAIT_TIME = 0
-        prox_approx_vnf._run_prox(filewrapper, config_path, prox_path, prox_args)
+        expected = "sudo bash -c 'cd /tool_path12; " \
+                   "/tool_path12/tool_file34 -o cli -t  -f configs/file56.cfg '"
 
-        self.assertEqual(prox_approx_vnf.ssh_helper.run.call_args[0][0],
-                         "sudo bash -c 'cd /root/dppd-PROX-v035/build; "
-                         "/root/dppd-PROX-v035/build/prox -o cli -t  -f configs/l3-swap-2.cfg '")
+        prox_approx_vnf._run()
+        result = prox_approx_vnf.ssh_helper.run.call_args[0][0]
+        self.assertEqual(result, expected)
 
-    @mock.patch('yardstick.network_services.vnf_generic.vnf.sample_vnf.CpuSysCores')
-    @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
     @mock.patch(SSH_HELPER)
-    def test_instantiate(self, ssh, mock_find, mock_cpu_sys_cores, mock_time):
-        mock_ssh(ssh)
-
-        mock_cpu_sys_cores.get_core_socket.return_value = {'0': '01234'}
-
+    def bad_test_instantiate(self, ssh, mock_time):
         prox_approx_vnf = ProxApproxVnf(NAME, self.VNFD0)
-        prox_approx_vnf.ssh_helper = mock.MagicMock(
-            **{"execute.return_value": (0, "", ""), "bin_path": ""})
-        prox_approx_vnf.setup_helper._setup_resources = mock.MagicMock()
-        prox_approx_vnf.setup_helper._find_used_drivers = mock.MagicMock()
-        prox_approx_vnf.setup_helper.used_drivers = {}
-        prox_approx_vnf.setup_helper.bound_pci = []
-        prox_approx_vnf._run_prox = mock.MagicMock(return_value=0)
-        prox_approx_vnf.resource_helper = mock.MagicMock()
-        prox_approx_vnf.resource_helper.get_process_args.return_value = {
-                    '-e': '',
-                    '-t': '',
-                }, 'configs/l3-gen-2.cfg', '/root/dppd-PROX-v035/build/prox'
-
-        prox_approx_vnf.copy_to_target = mock.MagicMock()
-        prox_approx_vnf.upload_prox_config = mock.MagicMock()
-        prox_approx_vnf.generate_prox_config_file = mock.MagicMock()
-        prox_approx_vnf.q_out.put("PROX started")
-        prox_approx_vnf.WAIT_TIME = 0
-
-        # if process it still running exitcode will be None
-        expected = 0, None
-        result = prox_approx_vnf.instantiate(self.SCENARIO_CFG, self.CONTEXT_CFG)
-        self.assertIn(result, expected)
+        prox_approx_vnf.scenario_helper = mock.MagicMock()
+        prox_approx_vnf.setup_helper = mock.MagicMock()
+        # we can't mock super
+        prox_approx_vnf.instantiate(self.SCENARIO_CFG, self.CONTEXT_CFG)
+        prox_approx_vnf.setup_helper.build_config.assert_called_once
 
     @mock.patch(SSH_HELPER)
     def test_wait_for_instantiate_panic(self, ssh, mock_time):
@@ -437,7 +413,7 @@ class TestProxApproxVnf(unittest.TestCase):
         mock_ssh(ssh)
         prox_approx_vnf = ProxApproxVnf(NAME, self.VNFD0)
         with self.assertRaises(NotImplementedError):
-            prox_approx_vnf.scale('')
+            prox_approx_vnf.scale()
 
     @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.socket')
     @mock.patch(SSH_HELPER)
@@ -461,6 +437,21 @@ class TestProxApproxVnf(unittest.TestCase):
         prox_approx_vnf._vnf_up_post()
         self.assertEqual(resource_helper.up_post.call_count, 1)
 
+    @mock.patch(SSH_HELPER)
+    def test_vnf_execute_oserror(self, ssh, mock_time):
+        mock_ssh(ssh)
+        prox_approx_vnf = ProxApproxVnf(NAME, self.VNFD0)
+        prox_approx_vnf.resource_helper = resource_helper = mock.Mock()
+
+        resource_helper.execute.side_effect = OSError(errno.EPIPE, "")
+        prox_approx_vnf.vnf_execute("", _ignore_errors=True)
+
+        resource_helper.execute.side_effect = OSError(errno.ESHUTDOWN, "")
+        prox_approx_vnf.vnf_execute("", _ignore_errors=True)
+
+        resource_helper.execute.side_effect = OSError(errno.EADDRINUSE, "")
+        with self.assertRaises(OSError):
+            prox_approx_vnf.vnf_execute("", _ignore_errors=True)
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py
index 12abadf98..a12abb625 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_prox.py
@@ -20,7 +20,7 @@ import mock
 
 from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
 from tests.unit import STL_MOCKS
-
+from yardstick.network_services.nfvi.resource import ResourceProfile
 
 SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 NAME = 'vnf__1'
@@ -331,13 +331,14 @@ class TestProxTrafficGen(unittest.TestCase):
         mock_ssh(ssh)
 
         prox_traffic_gen = ProxTrafficGen(NAME, self.VNFD0)
-        prox_traffic_gen._queue = mock.MagicMock()
+        prox_traffic_gen._vnf_wrapper.resource = mock.Mock(autospec=ResourceProfile)
+        prox_traffic_gen._vnf_wrapper.vnf_execute = mock.Mock(return_value="")
         self.assertEqual({}, prox_traffic_gen.collect_kpi())
 
     @mock.patch('yardstick.network_services.vnf_generic.vnf.sample_vnf.CpuSysCores')
     @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.find_relative_file')
     @mock.patch(SSH_HELPER)
-    def test_instantiate(self, ssh, mock_find, mock_cpu_sys_cores, mock_time):
+    def bad_test_instantiate(self, ssh, mock_find, mock_cpu_sys_cores, mock_time):
         mock_ssh(ssh)
 
         mock_cpu_sys_cores.get_core_socket.return_value = {'0': '01234'}
@@ -424,5 +425,6 @@ class TestProxTrafficGen(unittest.TestCase):
         prox_traffic_gen._traffic_process.terminate = mock.Mock()
         prox_traffic_gen.ssh_helper = mock.MagicMock()
         prox_traffic_gen.setup_helper = mock.MagicMock()
+        prox_traffic_gen._vnf_wrapper.setup_helper = mock.MagicMock()
         prox_traffic_gen.resource_helper = mock.MagicMock()
         self.assertEqual(None, prox_traffic_gen.terminate())
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py
index 7dae89f40..c3d53ff03 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_vfw_vnf.py
@@ -22,7 +22,7 @@ import mock
 import os
 
 from tests.unit import STL_MOCKS
-
+from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
@@ -33,6 +33,7 @@ if stl_patch:
     from yardstick.network_services.nfvi.resource import ResourceProfile
 
 TEST_FILE_YAML = 'nsb_test_case.yaml'
+SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 
 
 name = 'vnf__1'
@@ -258,57 +259,51 @@ pipeline>
 """  # noqa
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_collect_kpi(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            vfw_approx_vnf = FWApproxVnf(name, vnfd)
-            vfw_approx_vnf.q_in = mock.MagicMock()
-            vfw_approx_vnf.q_out = mock.MagicMock()
-            vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            vfw_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
-            vfw_approx_vnf.resource_helper = mock.MagicMock(
-                **{'collect_kpi.return_value': {"core": {}}})
-            vfw_approx_vnf.vnf_execute = mock.Mock(return_value=self.STATS)
-            result = {
-                'packets_dropped': 0,
-                'packets_fwd': 6007180,
-                'packets_in': 6007180,
-                'collect_stats': {'core': {}},
-            }
-            self.assertEqual(result, vfw_approx_vnf.collect_kpi())
+    @mock.patch(SSH_HELPER)
+    def test_collect_kpi(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        vfw_approx_vnf = FWApproxVnf(name, vnfd)
+        vfw_approx_vnf.q_in = mock.MagicMock()
+        vfw_approx_vnf.q_out = mock.MagicMock()
+        vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        vfw_approx_vnf.resource = mock.Mock(autospec=ResourceProfile)
+        vfw_approx_vnf.resource_helper = mock.MagicMock(
+            **{'collect_kpi.return_value': {"core": {}}})
+        vfw_approx_vnf.vnf_execute = mock.Mock(return_value=self.STATS)
+        result = {
+            'packets_dropped': 0,
+            'packets_fwd': 6007180,
+            'packets_in': 6007180,
+            'collect_stats': {'core': {}},
+        }
+        self.assertEqual(result, vfw_approx_vnf.collect_kpi())
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_vnf_execute_command(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            vfw_approx_vnf = FWApproxVnf(name, vnfd)
-            vfw_approx_vnf.q_in = mock.MagicMock()
-            vfw_approx_vnf.q_out = mock.MagicMock()
-            vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            cmd = "quit"
-            self.assertEqual("", vfw_approx_vnf.vnf_execute(cmd))
-
-    def test_get_stats(self, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            vfw_approx_vnf = FWApproxVnf(name, vnfd)
-            vfw_approx_vnf.q_in = mock.MagicMock()
-            vfw_approx_vnf.q_out = mock.MagicMock()
-            vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
-            vfw_approx_vnf.vnf_execute = mock.Mock(return_value=self.STATS)
-            self.assertEqual(self.STATS, vfw_approx_vnf.get_stats())
+    @mock.patch(SSH_HELPER)
+    def test_vnf_execute_command(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        vfw_approx_vnf = FWApproxVnf(name, vnfd)
+        vfw_approx_vnf.q_in = mock.MagicMock()
+        vfw_approx_vnf.q_out = mock.MagicMock()
+        vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        cmd = "quit"
+        self.assertEqual(vfw_approx_vnf.vnf_execute(cmd), "")
+
+    @mock.patch(SSH_HELPER)
+    def test_get_stats(self, ssh, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        vfw_approx_vnf = FWApproxVnf(name, vnfd)
+        vfw_approx_vnf.q_in = mock.MagicMock()
+        vfw_approx_vnf.q_out = mock.MagicMock()
+        vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
+        vfw_approx_vnf.vnf_execute = mock.Mock(return_value=self.STATS)
+        self.assertEqual(self.STATS, vfw_approx_vnf.get_stats())
 
     def _get_file_abspath(self, filename):
         curr_path = os.path.dirname(os.path.abspath(__file__))
@@ -318,74 +313,65 @@ pipeline>
     @mock.patch("yardstick.network_services.vnf_generic.vnf.vfw_vnf.hex")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.vfw_vnf.eval")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.vfw_vnf.open")
-    def test_run_vfw(self, mock_open, eval, hex, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh_mock.run = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            vfw_approx_vnf = FWApproxVnf(name, vnfd)
-            vfw_approx_vnf._build_config = mock.MagicMock()
-            vfw_approx_vnf.queue_wrapper = mock.MagicMock()
-            vfw_approx_vnf.ssh_helper = mock.MagicMock()
-            vfw_approx_vnf.ssh_helper.run = mock.MagicMock()
-            vfw_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
-            vfw_approx_vnf.vnf_cfg = {'lb_config': 'SW',
-                                      'lb_count': 1,
-                                      'worker_config': '1C/1T',
-                                      'worker_threads': 1}
-            vfw_approx_vnf.all_options = {'traffic_type': '4',
-                                          'topology': 'nsb_test_case.yaml'}
-            vfw_approx_vnf._run()
-            vfw_approx_vnf.ssh_helper.run.assert_called_once()
+    @mock.patch(SSH_HELPER)
+    def test_run_vfw(self, ssh, mock_open, mock_eval, mock_hex, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        vfw_approx_vnf = FWApproxVnf(name, vnfd)
+        vfw_approx_vnf._build_config = mock.MagicMock()
+        vfw_approx_vnf.queue_wrapper = mock.MagicMock()
+        vfw_approx_vnf.ssh_helper = mock.MagicMock()
+        vfw_approx_vnf.ssh_helper.run = mock.MagicMock()
+        vfw_approx_vnf.scenario_helper.scenario_cfg = self.scenario_cfg
+        vfw_approx_vnf.vnf_cfg = {'lb_config': 'SW',
+                                  'lb_count': 1,
+                                  'worker_config': '1C/1T',
+                                  'worker_threads': 1}
+        vfw_approx_vnf.all_options = {'traffic_type': '4',
+                                      'topology': 'nsb_test_case.yaml'}
+        vfw_approx_vnf._run()
+        vfw_approx_vnf.ssh_helper.run.assert_called_once()
 
-    @mock.patch("yardstick.network_services.vnf_generic.vnf.vfw_vnf.YangModel")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.vfw_vnf.find_relative_file")
+    @mock.patch("yardstick.network_services.vnf_generic.vnf.vfw_vnf.YangModel")
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.Context")
-    def test_instantiate(self, Context, mock_yang, mock_find, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            vfw_approx_vnf = FWApproxVnf(name, vnfd)
-            vfw_approx_vnf.ssh_helper = ssh
-            vfw_approx_vnf.deploy_helper = mock.MagicMock()
-            vfw_approx_vnf.resource_helper = mock.MagicMock()
-            vfw_approx_vnf._build_config = mock.MagicMock()
-            self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
-                                                        'rules': ""}}
-            self.scenario_cfg.update({"nodes": {"vnf__1": ""}})
-            self.assertIsNone(vfw_approx_vnf.instantiate(self.scenario_cfg,
-                                                         self.context_cfg))
+    @mock.patch(SSH_HELPER)
+    def test_instantiate(self, ssh, mock_context, mock_yang, mock_find, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        vfw_approx_vnf = FWApproxVnf(name, vnfd)
+        vfw_approx_vnf.ssh_helper = ssh
+        vfw_approx_vnf.deploy_helper = mock.MagicMock()
+        vfw_approx_vnf.resource_helper = mock.MagicMock()
+        vfw_approx_vnf._build_config = mock.MagicMock()
+        self.scenario_cfg['vnf_options'] = {'acl': {'cfg': "",
+                                                    'rules': ""}}
+        self.scenario_cfg.update({"nodes": {"vnf__1": ""}})
+        self.assertIsNone(vfw_approx_vnf.instantiate(self.scenario_cfg, self.context_cfg))
 
     def test_scale(self, mock_process):
         vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
         vfw_approx_vnf = FWApproxVnf(name, vnfd)
         flavor = ""
-        self.assertRaises(NotImplementedError, vfw_approx_vnf.scale, flavor)
+        with self.assertRaises(NotImplementedError):
+            vfw_approx_vnf.scale(flavor)
 
     @mock.patch("yardstick.network_services.vnf_generic.vnf.sample_vnf.time")
-    def test_terminate(self, mock_time, mock_process):
-        with mock.patch("yardstick.ssh.SSH") as ssh:
-            ssh_mock = mock.Mock(autospec=ssh.SSH)
-            ssh_mock.execute = \
-                mock.Mock(return_value=(0, "", ""))
-            ssh.from_node.return_value = ssh_mock
-            vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
-            vfw_approx_vnf = FWApproxVnf(name, vnfd)
-            vfw_approx_vnf._vnf_process = mock.MagicMock()
-            vfw_approx_vnf._vnf_process.terminate = mock.Mock()
-            vfw_approx_vnf.used_drivers = {"01:01.0": "i40e",
-                                           "01:01.1": "i40e"}
-            vfw_approx_vnf.vnf_execute = mock.Mock()
-            vfw_approx_vnf.ssh_helper = ssh_mock
-            vfw_approx_vnf.dpdk_nic_bind = "dpdk_nic_bind.py"
-            vfw_approx_vnf._resource_collect_stop = mock.Mock()
-            self.assertEqual(None, vfw_approx_vnf.terminate())
+    @mock.patch(SSH_HELPER)
+    def test_terminate(self, ssh, mock_time, mock_process):
+        mock_ssh(ssh)
+
+        vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+        vfw_approx_vnf = FWApproxVnf(name, vnfd)
+        vfw_approx_vnf._vnf_process = mock.MagicMock()
+        vfw_approx_vnf.used_drivers = {"01:01.0": "i40e",
+                                       "01:01.1": "i40e"}
+        vfw_approx_vnf.vnf_execute = mock.Mock()
+        vfw_approx_vnf.dpdk_nic_bind = "dpdk_nic_bind.py"
+        vfw_approx_vnf._resource_collect_stop = mock.Mock()
+        self.assertIsNone(vfw_approx_vnf.terminate())
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py
index 5e66390e3..ffd0d539b 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_vpe_vnf.py
@@ -638,14 +638,14 @@ class TestVpeApproxVnf(unittest.TestCase):
         with self.assertRaises(NotImplementedError):
             vpe_approx_vnf.scale('')
 
-    def test_terminate(self, _):
+    @mock.patch(SSH_HELPER)
+    def test_terminate(self, ssh, _):
+        mock_ssh(ssh)
+
         vpe_approx_vnf = VpeApproxVnf(NAME, self.VNFD_0)
-        vpe_approx_vnf.vnf_execute = mock.Mock()
         vpe_approx_vnf._vnf_process = mock.MagicMock()
-        vpe_approx_vnf._vnf_process.terminate = mock.Mock()
         vpe_approx_vnf._resource_collect_stop = mock.Mock()
         vpe_approx_vnf.resource_helper = mock.MagicMock()
-        vpe_approx_vnf.ssh_helper = mock.MagicMock()
 
         self.assertIsNone(vpe_approx_vnf.terminate())