Add send socket commands function

Pktgen provides a TCP socket connection to allow the user to control
it from a remote console or program [1].

This new method will provide Yardstick the ability to send string
commands to a port in a remote host.

[1] http://pktgen-dpdk.readthedocs.io/en/latest/socket.html

JIRA: YARDSTICK-1186

Change-Id: I9d64ccad662fa3599de65654c5dab02833fcc91d
Signed-off-by: Rodolfo Alonso Hernandez <rodolfo.alonso.hernandez@intel.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/yardstick/tests/unit/common/test_utils.py b/yardstick/tests/unit/common/test_utils.py
index 5fd91c87f..10ad0a67a 100644
--- a/yardstick/tests/unit/common/test_utils.py
+++ b/yardstick/tests/unit/common/test_utils.py
@@ -16,6 +16,7 @@ import mock
 import os
 import six
 from six.moves import configparser
+import socket
 import time
 import unittest
 
@@ -1194,3 +1195,29 @@ class WaitUntilTrueTestCase(unittest.TestCase):
             self.assertIsNone(
                 utils.wait_until_true(lambda: False, timeout=1, sleep=1,
                                       exception=MyTimeoutException))
+
+
+class SendSocketCommandTestCase(unittest.TestCase):
+
+    @mock.patch.object(socket, 'socket')
+    def test_execute_correct(self, mock_socket):
+        mock_socket_obj = mock.Mock()
+        mock_socket_obj.connect_ex.return_value = 0
+        mock_socket.return_value = mock_socket_obj
+        self.assertEqual(0, utils.send_socket_command('host', 22, 'command'))
+        mock_socket.assert_called_once_with(socket.AF_INET, socket.SOCK_STREAM)
+        mock_socket_obj.connect_ex.assert_called_once_with(('host', 22))
+        mock_socket_obj.sendall.assert_called_once_with(six.b('command'))
+        mock_socket_obj.close.assert_called_once()
+
+    @mock.patch.object(socket, 'socket')
+    def test_execute_exception(self, mock_socket):
+        mock_socket_obj = mock.Mock()
+        mock_socket_obj.connect_ex.return_value = 0
+        mock_socket.return_value = mock_socket_obj
+        mock_socket_obj.sendall.side_effect = socket.error
+        self.assertEqual(1, utils.send_socket_command('host', 22, 'command'))
+        mock_socket.assert_called_once_with(socket.AF_INET, socket.SOCK_STREAM)
+        mock_socket_obj.connect_ex.assert_called_once_with(('host', 22))
+        mock_socket_obj.sendall.assert_called_once_with(six.b('command'))
+        mock_socket_obj.close.assert_called_once()