Add unit test for iperf3

Sample output from the iperf3 is read from a pre-generated json file.

Change-Id: I6e04c6bd2e61b841c7e5673cfa78aeb17220a5f9
JIRA:-
Signed-off-by: Kristian Hunt <kristian.hunt@gmail.com>

2 files changed, 134 insertions, 0 deletions

diff --git a/tests/unit/benchmark/scenarios/networking/iperf3_sample_output.json b/tests/unit/benchmark/scenarios/networking/iperf3_sample_output.json
new file mode 100644
index 000000000..b56009ba1
--- /dev/null
+++ b/tests/unit/benchmark/scenarios/networking/iperf3_sample_output.json
@@ -0,0 +1 @@
+{"start": {"connecting_to": {"host": "172.16.0.252", "port": 5201}, "timestamp": {"timesecs": 1436254758, "time": "Tue, 07 Jul 2015 07:39:18 GMT"}, "test_start": {"protocol": "TCP", "num_streams": 1, "omit": 0, "bytes": 0, "blksize": 131072, "duration": 10, "blocks": 0, "reverse": 0}, "system_info": "Linux client 3.13.0-55-generic #94-Ubuntu SMP Thu Jun 18 00:27:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux\n", "version": "iperf 3.0.7", "connected": [{"local_host": "10.0.1.2", "local_port": 37633, "remote_host": "172.16.0.252", "socket": 4, "remote_port": 5201}], "cookie": "client.1436254758.606879.1fb328dc230", "tcp_mss_default": 1448}, "intervals": [{"sum": {"end": 1.00068, "seconds": 1.00068, "bytes": 16996624, "bits_per_second": 135881000.0, "start": 0, "retransmits": 0, "omitted": false}, "streams": [{"end": 1.00068, "socket": 4, "seconds": 1.00068, "bytes": 16996624, "bits_per_second": 135881000.0, "start": 0, "retransmits": 0, "omitted": false, "snd_cwnd": 451776}]}, {"sum": {"end": 2.00048, "seconds": 0.999804, "bytes": 20010192, "bits_per_second": 160113000.0, "start": 1.00068, "retransmits": 0, "omitted": false}, "streams": [{"end": 2.00048, "socket": 4, "seconds": 0.999804, "bytes": 20010192, "bits_per_second": 160113000.0, "start": 1.00068, "retransmits": 0, "omitted": false, "snd_cwnd": 713864}]}, {"sum": {"end": 3.00083, "seconds": 1.00035, "bytes": 18330464, "bits_per_second": 146592000.0, "start": 2.00048, "retransmits": 0, "omitted": false}, "streams": [{"end": 3.00083, "socket": 4, "seconds": 1.00035, "bytes": 18330464, "bits_per_second": 146592000.0, "start": 2.00048, "retransmits": 0, "omitted": false, "snd_cwnd": 768888}]}, {"sum": {"end": 4.00707, "seconds": 1.00624, "bytes": 19658376, "bits_per_second": 156292000.0, "start": 3.00083, "retransmits": 0, "omitted": false}, "streams": [{"end": 4.00707, "socket": 4, "seconds": 1.00624, "bytes": 19658376, "bits_per_second": 156292000.0, "start": 3.00083, "retransmits": 0, "omitted": false, "snd_cwnd": 812328}]}, {"sum": {"end": 5.00104, "seconds": 0.993972, "bytes": 15709072, "bits_per_second": 126435000.0, "start": 4.00707, "retransmits": 0, "omitted": false}, "streams": [{"end": 5.00104, "socket": 4, "seconds": 0.993972, "bytes": 15709072, "bits_per_second": 126435000.0, "start": 4.00707, "retransmits": 0, "omitted": false, "snd_cwnd": 849976}]}, {"sum": {"end": 6.00049, "seconds": 0.999443, "bytes": 19616288, "bits_per_second": 157018000.0, "start": 5.00104, "retransmits": 53, "omitted": false}, "streams": [{"end": 6.00049, "socket": 4, "seconds": 0.999443, "bytes": 19616288, "bits_per_second": 157018000.0, "start": 5.00104, "retransmits": 53, "omitted": false, "snd_cwnd": 641464}]}, {"sum": {"end": 7.00085, "seconds": 1.00036, "bytes": 22250480, "bits_per_second": 177939000.0, "start": 6.00049, "retransmits": 0, "omitted": false}, "streams": [{"end": 7.00085, "socket": 4, "seconds": 1.00036, "bytes": 22250480, "bits_per_second": 177939000.0, "start": 6.00049, "retransmits": 0, "omitted": false, "snd_cwnd": 706624}]}, {"sum": {"end": 8.00476, "seconds": 1.00391, "bytes": 22282240, "bits_per_second": 177564000.0, "start": 7.00085, "retransmits": 0, "omitted": false}, "streams": [{"end": 8.00476, "socket": 4, "seconds": 1.00391, "bytes": 22282240, "bits_per_second": 177564000.0, "start": 7.00085, "retransmits": 0, "omitted": false, "snd_cwnd": 761648}]}, {"sum": {"end": 9.0016, "seconds": 0.996847, "bytes": 19657680, "bits_per_second": 157759000.0, "start": 8.00476, "retransmits": 28, "omitted": false}, "streams": [{"end": 9.0016, "socket": 4, "seconds": 0.996847, "bytes": 19657680, "bits_per_second": 157759000.0, "start": 8.00476, "retransmits": 28, "omitted": false, "snd_cwnd": 570512}]}, {"sum": {"end": 10.0112, "seconds": 1.00955, "bytes": 20932520, "bits_per_second": 165876000.0, "start": 9.0016, "retransmits": 0, "omitted": false}, "streams": [{"end": 10.0112, "socket": 4, "seconds": 1.00955, "bytes": 20932520, "bits_per_second": 165876000.0, "start": 9.0016, "retransmits": 0, "omitted": false, "snd_cwnd": 615400}]}], "end": {"sum_received": {"seconds": 10.0112, "start": 0, "end": 10.0112, "bytes": 193366712, "bits_per_second": 154521000.0}, "streams": [{"sender": {"end": 10.0112, "socket": 4, "seconds": 10.0112, "bytes": 195443936, "bits_per_second": 156181000.0, "start": 0, "retransmits": 81}, "receiver": {"end": 10.0112, "socket": 4, "seconds": 10.0112, "bytes": 193366712, "bits_per_second": 154521000.0, "start": 0}}], "sum_sent": {"end": 10.0112, "seconds": 10.0112, "bytes": 195443936, "bits_per_second": 156181000.0, "start": 0, "retransmits": 81}, "cpu_utilization_percent": {"remote_user": 1.10295, "remote_system": 40.0403, "host_user": 2.41785, "remote_total": 41.1438, "host_system": 5.09548, "host_total": 7.51411}}}
\ No newline at end of file
diff --git a/tests/unit/benchmark/scenarios/networking/test_iperf3.py b/tests/unit/benchmark/scenarios/networking/test_iperf3.py
new file mode 100644
index 000000000..239e46a1c
--- /dev/null
+++ b/tests/unit/benchmark/scenarios/networking/test_iperf3.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python
+
+##############################################################################
+# Copyright (c) 2015 Ericsson AB and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+# Unittest for yardstick.benchmark.scenarios.networking.iperf3.Iperf
+
+import mock
+import unittest
+import os
+import json
+
+from yardstick.benchmark.scenarios.networking import iperf3
+
+
+@mock.patch('yardstick.benchmark.scenarios.networking.iperf3.ssh')
+class IperfTestCase(unittest.TestCase):
+
+    def setUp(self):
+        self.ctx = {
+            'host': '172.16.0.137',
+            'target': '172.16.0.138',
+            'user': 'cirros',
+            'key_filename': "mykey.key"
+        }
+
+    def test_iperf_successful_setup(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (0, '', '')
+
+        p.setup()
+        self.assertIsNotNone(p.target)
+        self.assertIsNotNone(p.host)
+        mock_ssh.SSH().execute.assert_called_with("iperf3 -s -D")
+
+    def test_iperf_unsuccessful_setup(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR')
+        self.assertRaises(RuntimeError, p.setup)
+
+    def test_iperf_successful_teardown(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (0, '', '')
+        p.host = mock_ssh.SSH()
+        p.target = mock_ssh.SSH()
+
+        p.teardown()
+        self.assertTrue(mock_ssh.SSH().close.called)
+        mock_ssh.SSH().execute.assert_called_with("pkill iperf3")
+
+    def test_iperf_successful_no_sla(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (0, '', '')
+        p.host = mock_ssh.SSH()
+
+        options = {}
+        args = {'options': options}
+
+        sample_output = self._read_sample_output()
+        mock_ssh.SSH().execute.return_value = (0, sample_output, '')
+        expected_result = json.loads(sample_output)
+        result = p.run(args)
+        self.assertEqual(result, expected_result)
+
+    def test_iperf_successful_sla(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (0, '', '')
+        p.host = mock_ssh.SSH()
+
+        options = {}
+        args = {
+            'options': options,
+            'sla': {'bytes_per_second': 15000000}
+        }
+
+        sample_output = self._read_sample_output()
+        mock_ssh.SSH().execute.return_value = (0, sample_output, '')
+        expected_result = json.loads(sample_output)
+        result = p.run(args)
+        self.assertEqual(result, expected_result)
+
+    def test_iperf_unsuccessful_sla(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (0, '', '')
+        p.host = mock_ssh.SSH()
+
+        options = {}
+        args = {
+            'options': options,
+            'sla': {'bytes_per_second': 25000000}
+        }
+
+        sample_output = self._read_sample_output()
+        mock_ssh.SSH().execute.return_value = (0, sample_output, '')
+        self.assertRaises(AssertionError, p.run, args)
+
+    def test_iperf_unsuccessful_script_error(self, mock_ssh):
+
+        p = iperf3.Iperf(self.ctx)
+        mock_ssh.SSH().execute.return_value = (0, '', '')
+        p.host = mock_ssh.SSH()
+
+        options = {}
+        args = {'options': options}
+
+        mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR')
+        self.assertRaises(RuntimeError, p.run, args)
+
+    def _read_sample_output(self):
+        curr_path = os.path.dirname(os.path.abspath(__file__))
+        output = os.path.join(curr_path, 'iperf3_sample_output.json')
+        with open(output) as f:
+            sample_output = f.read()
+        return sample_output
+
+
+def main():
+    unittest.main()
+
+if __name__ == '__main__':
+    main()