Standardized TRex client library path

- path should be defined via TREX_CLIENT_LIB environmental variable e.g. TREX_CLIENT_LIB=/opt/trex_client/stl
- refactored unit tests

Change-Id: I18767e48daf774432c010f1b88d18a4f0ee4e156
Signed-off-by: Maciej Skrocki <maciej.skrocki@intel.com>
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

15 files changed, 38 insertions, 899 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 a63a59d48..7570067b9 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
@@ -16,70 +16,13 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 import os
 
+from tests.unit import STL_MOCKS
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
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 bf226d2c8..f214d66f6 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
@@ -19,68 +19,10 @@ from __future__ import absolute_import
 
 import os
 import unittest
-
 import mock
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+from tests.unit import STL_MOCKS
+
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
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 53481ddd0..b74e5d9fd 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_iniparser.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_iniparser.py
@@ -14,70 +14,13 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 from contextlib import contextmanager
-
 import mock
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+from tests.unit import STL_MOCKS
+
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
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 90ec3f374..98eccae4f 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
@@ -23,69 +23,10 @@ import unittest
 from collections import OrderedDict
 from itertools import repeat, chain
 from contextlib import contextmanager
-
 import mock
 
+from tests.unit import STL_MOCKS
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
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 453100b90..c727cb7fb 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
@@ -19,71 +19,13 @@ from __future__ import absolute_import
 
 import os
 import unittest
-
 import mock
 from copy import deepcopy
 
-SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
+from tests.unit import STL_MOCKS
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+
+SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py b/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
index 07a862a8e..455e44ec9 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_sample_vnf.py
@@ -18,11 +18,13 @@
 # Unittest for yardstick.network_services.vnf_generic.vnf.sample_vnf
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 from copy import deepcopy
 
 from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
+from tests.unit import STL_MOCKS
 from yardstick.benchmark.contexts.base import Context
 from yardstick.network_services.nfvi.resource import ResourceProfile
 from yardstick.network_services.traffic_profile.base import TrafficProfile
@@ -34,66 +36,6 @@ class MockError(BaseException):
     pass
 
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
-
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
 stl_patch.start()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_ixload.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_ixload.py
index cda44127e..5c81aa886 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_ixload.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_ixload.py
@@ -16,69 +16,13 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 import subprocess
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+from tests.unit import STL_MOCKS
+
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
index 949bfb3d4..45bbfaea3 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
@@ -16,74 +16,16 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 from multiprocessing import Queue
 
 from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
+from tests.unit import STL_MOCKS
 
 SSH_HELPER = "yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper"
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
-
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
 stl_patch.start()
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 1a01b9e15..12abadf98 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
@@ -14,76 +14,17 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 
 from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
+from tests.unit import STL_MOCKS
 
 
 SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 NAME = 'vnf__1'
 
-
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
-
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
 stl_patch.start()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py
index 8f7f05772..ca8150cb2 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py
@@ -16,68 +16,13 @@
 #
 
 from __future__ import absolute_import
+
 import os
 import unittest
 import mock
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+
+from tests.unit import STL_MOCKS
+
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py
index 7dc303852..3dcb02f02 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_trex.py
@@ -16,70 +16,14 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 
-SSH_HELPER = "yardstick.ssh.SSH"
+from tests.unit import STL_MOCKS
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+
+SSH_HELPER = "yardstick.ssh.SSH"
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py
index 6fb5d080f..65370dfa5 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_trex.py
@@ -16,74 +16,16 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 
 from tests.unit.network_services.vnf_generic.vnf.test_base import mock_ssh
+from tests.unit import STL_MOCKS
 
 
 NAME = 'vnf_1'
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
-
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
 stl_patch.start()
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py b/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py
index 08bf06b74..f0d75d57b 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_udp_replay.py
@@ -16,70 +16,13 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 import os
 
+from tests.unit import STL_MOCKS
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
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 d817b164c..7dae89f40 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
@@ -16,69 +16,13 @@
 #
 
 from __future__ import absolute_import
+
 import unittest
 import mock
 import os
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+from tests.unit import STL_MOCKS
+
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
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 80b4a5108..5e66390e3 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
@@ -16,77 +16,18 @@
 #
 
 from __future__ import absolute_import
+import six.moves.configparser as configparser
 
 import os
 import unittest
-
-import six.moves.configparser as configparser
 import mock
 from multiprocessing import Process, Queue
 
+from tests.unit import STL_MOCKS
 from yardstick.network_services.vnf_generic.vnf.base import QueueFileWrapper
 
-SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 
-STL_MOCKS = {
-    'stl': mock.MagicMock(),
-    'stl.trex_stl_lib': mock.MagicMock(),
-    'stl.trex_stl_lib.base64': mock.MagicMock(),
-    'stl.trex_stl_lib.binascii': mock.MagicMock(),
-    'stl.trex_stl_lib.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.copy': mock.MagicMock(),
-    'stl.trex_stl_lib.datetime': mock.MagicMock(),
-    'stl.trex_stl_lib.functools': mock.MagicMock(),
-    'stl.trex_stl_lib.imp': mock.MagicMock(),
-    'stl.trex_stl_lib.inspect': mock.MagicMock(),
-    'stl.trex_stl_lib.json': mock.MagicMock(),
-    'stl.trex_stl_lib.linecache': mock.MagicMock(),
-    'stl.trex_stl_lib.math': mock.MagicMock(),
-    'stl.trex_stl_lib.os': mock.MagicMock(),
-    'stl.trex_stl_lib.platform': mock.MagicMock(),
-    'stl.trex_stl_lib.pprint': mock.MagicMock(),
-    'stl.trex_stl_lib.random': mock.MagicMock(),
-    'stl.trex_stl_lib.re': mock.MagicMock(),
-    'stl.trex_stl_lib.scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.socket': mock.MagicMock(),
-    'stl.trex_stl_lib.string': mock.MagicMock(),
-    'stl.trex_stl_lib.struct': mock.MagicMock(),
-    'stl.trex_stl_lib.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.threading': mock.MagicMock(),
-    'stl.trex_stl_lib.time': mock.MagicMock(),
-    'stl.trex_stl_lib.traceback': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_async_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_exceptions': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_ext': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_jsonrpc_client': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_interface': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_packet_builder_scapy': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_port': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_stats': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_streams': mock.MagicMock(),
-    'stl.trex_stl_lib.trex_stl_types': mock.MagicMock(),
-    'stl.trex_stl_lib.types': mock.MagicMock(),
-    'stl.trex_stl_lib.utils': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.argparse': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.collections': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.common': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.json': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.os': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.parsing_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.pwd': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.random': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.re': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.string': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.sys': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_opts': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.text_tables': mock.MagicMock(),
-    'stl.trex_stl_lib.utils.texttable': mock.MagicMock(),
-    'stl.trex_stl_lib.warnings': mock.MagicMock(),
-    'stl.trex_stl_lib.yaml': mock.MagicMock(),
-    'stl.trex_stl_lib.zlib': mock.MagicMock(),
-    'stl.trex_stl_lib.zmq': mock.MagicMock(),
-}
+SSH_HELPER = 'yardstick.network_services.vnf_generic.vnf.sample_vnf.VnfSshHelper'
 
 STLClient = mock.MagicMock()
 stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)