1 files changed, 57 insertions, 0 deletions
diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py
new file mode 100644
index 0000000000..d86917a181
--- /dev/null
+++ b/resources/libraries/python/TrafficGenerator.py
@@ -0,0 +1,57 @@
+# Copyright (c) 2016 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from ssh import SSH
+from robot.api import logger
+
+__all__ = ['TrafficGenerator']
+
+class TrafficGenerator(object):
+
+    def __init__(self):
+        self._result = None
+        self._loss = None
+        self._sent = None
+        self._received = None
+
+
+    def send_traffic_on(self, node, tx_port, rx_port, duration, rate,
+            framesize):
+        ssh = SSH()
+        ssh.connect(node)
+
+        (ret, stdout, stderr) = ssh.exec_command(
+                "sh -c 'cd MoonGen && sudo -S build/MoonGen "
+                "rfc2544/benchmarks/vpp-frameloss.lua --txport 0 --rxport 1 "
+                "--duration {0} --rate {1} --framesize {2}'".format(
+                    duration, rate, framesize),
+                timeout=int(duration)+60)
+
+        logger.trace(ret)
+        logger.trace(stdout)
+        logger.trace(stderr)
+
+        for line in stdout.splitlines():
+            pass
+
+        self._result = line
+        logger.info('TrafficGen result: {0}'.format(self._result))
+
+        self._loss = self._result.split(', ')[3].split('=')[1]
+
+        return self._result
+
+    def no_traffic_loss_occured(self):
+        if self._loss is None:
+            raise Exception('The traffic generation has not been issued')
+        if self._loss != '0':
+            raise Exception('Traffic loss occured: {0}'.format(self._loss))