aboutsummaryrefslogtreecommitdiffstats
path: root/tests/unit/benchmark/scenarios/networking/test_vnf_generic.py
blob: 8aa9a8c8b960dd3223b33e31b6a10ef7e572e2f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
#!/usr/bin/env python

# Copyright (c) 2016-2017 Intel Corporation
#
# 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.
#

# Unittest for yardstick.benchmark.scenarios.networking.test_vnf_generic

from __future__ import absolute_import

import os
import errno
import unittest
import mock

from copy import deepcopy

from tests.unit import STL_MOCKS
from yardstick.benchmark.scenarios.networking.vnf_generic import \
    SshManager, NetworkServiceTestCase, IncorrectConfig, \
    open_relative_file
from yardstick.network_services.collector.subscriber import Collector
from yardstick.network_services.vnf_generic.vnf.base import \
    GenericTrafficGen, GenericVNF


COMPLETE_TREX_VNFD = {
    'vnfd:vnfd-catalog': {
        'vnfd': [
            {
                'benchmark': {
                    'kpi': [
                        'rx_throughput_fps',
                        'tx_throughput_fps',
                        'tx_throughput_mbps',
                        'rx_throughput_mbps',
                        'tx_throughput_pc_linerate',
                        'rx_throughput_pc_linerate',
                        'min_latency',
                        'max_latency',
                        'avg_latency',
                    ],
                },
                'connection-point': [
                    {
                        'name': 'xe0',
                        'type': 'VPORT',
                    },
                    {
                        'name': 'xe1',
                        'type': 'VPORT',
                    },
                ],
                'description': 'TRex stateless traffic generator for RFC2544',
                'id': 'TrexTrafficGen',
                'mgmt-interface': {
                    'ip': '1.1.1.1',
                    'password': 'berta',
                    'user': 'berta',
                    'vdu-id': 'trexgen-baremetal',
                },
                'name': 'trexgen',
                'short-name': 'trexgen',
                'class-name': 'TrexTrafficGen',
                'vdu': [
                    {
                        'description': 'TRex stateless traffic generator for RFC2544',
                        'external-interface': [
                            {
                                'name': 'xe0',
                                'virtual-interface': {
                                    'bandwidth': '10 Gbps',
                                    'dst_ip': '1.1.1.1',
                                    'dst_mac': '00:01:02:03:04:05',
                                    'local_ip': '1.1.1.2',
                                    'local_mac': '00:01:02:03:05:05',
                                    'type': 'PCI-PASSTHROUGH',
                                    'netmask': "255.255.255.0",
                                    'driver': 'i40',
                                    'vpci': '0000:00:10.2',
                                },
                                'vnfd-connection-point-ref': 'xe0',
                            },
                            {
                                'name': 'xe1',
                                'virtual-interface': {
                                    'bandwidth': '10 Gbps',
                                    'dst_ip': '2.1.1.1',
                                    'dst_mac': '00:01:02:03:04:06',
                                    'local_ip': '2.1.1.2',
                                    'local_mac': '00:01:02:03:05:06',
                                    'type': 'PCI-PASSTHROUGH',
                                    'netmask': "255.255.255.0",
                                    'driver': 'i40',
                                    'vpci': '0000:00:10.1',
                                },
                                'vnfd-connection-point-ref': 'xe1',
                            },
                        ],
                        'id': 'trexgen-baremetal',
                        'name': 'trexgen-baremetal',
                    },
                ],
            },
        ],
    },
}

IP_ADDR_SHOW = """
28: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP \
group default qlen 1000
    link/ether 90:e2:ba:a7:6a:c8 brd ff:ff:ff:ff:ff:ff
    inet 1.1.1.1/8 brd 1.255.255.255 scope global eth1
    inet6 fe80::92e2:baff:fea7:6ac8/64 scope link
       valid_lft forever preferred_lft forever
29: eth5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP \
group default qlen 1000
    link/ether 90:e2:ba:a7:6a:c9 brd ff:ff:ff:ff:ff:ff
    inet 2.1.1.1/8 brd 2.255.255.255 scope global eth5
    inet6 fe80::92e2:baff:fea7:6ac9/64 scope link tentative
       valid_lft forever preferred_lft forever
"""

SYS_CLASS_NET = """
lrwxrwxrwx 1 root root 0 sie 10 14:16 eth1 -> \
../../devices/pci0000:80/0000:80:02.2/0000:84:00.1/net/eth1
lrwxrwxrwx 1 root root 0 sie  3 10:37 eth2 -> \
../../devices/pci0000:00/0000:00:01.1/0000:84:00.2/net/eth5
"""

TRAFFIC_PROFILE = {
    "schema": "isb:traffic_profile:0.1",
    "name": "fixed",
    "description": "Fixed traffic profile to run UDP traffic",
    "traffic_profile": {
        "traffic_type": "FixedTraffic",
        "frame_rate": 100,  # pps
        "flow_number": 10,
        "frame_size": 64,
    },
}


class TestNetworkServiceTestCase(unittest.TestCase):

    def setUp(self):
        self.tg__1 = {
            'name': 'trafficgen_1.yardstick',
            'ip': '10.10.10.11',
            'role': 'TrafficGen',
            'user': 'root',
            'password': 'r00t',
            'interfaces': {
                'xe0': {
                    'netmask': '255.255.255.0',
                    'local_ip': '152.16.100.20',
                    'local_mac': '00:00:00:00:00:01',
                    'driver': 'i40e',
                    'vpci': '0000:07:00.0',
                    'dpdk_port_num': 0,
                },
                'xe1': {
                    'netmask': '255.255.255.0',
                    'local_ip': '152.16.40.20',
                    'local_mac': '00:00:00:00:00:02',
                    'driver': 'i40e',
                    'vpci': '0000:07:00.1',
                    'dpdk_port_num': 1,
                },
            },
        }

        self.vnf__1 = {
            'name': 'vnf.yardstick',
            'ip': '10.10.10.12',
            'host': '10.223.197.164',
            'role': 'vnf',
            'user': 'root',
            'password': 'r00t',
            'interfaces': {
                'xe0': {
                    'netmask': '255.255.255.0',
                    'local_ip': '152.16.100.19',
                    'local_mac': '00:00:00:00:00:03',
                    'driver': 'i40e',
                    'vpci': '0000:07:00.0',
                    'dpdk_port_num': 0,
                },
                'xe1': {
                    'netmask': '255.255.255.0',
                    'local_ip': '152.16.40.19',
                    'local_mac': '00:00:00:00:00:04',
                    'driver': 'i40e',
                    'vpci': '0000:07:00.1',
                    'dpdk_port_num': 1,
                },
            },
            'routing_table': [
                {
                    'netmask': '255.255.255.0',
                    'gateway': '152.16.100.20',
                    'network': '152.16.100.20',
                    'if': 'xe0',
                },
                {
                    'netmask': '255.255.255.0',
                    'gateway': '152.16.40.20',
                    'network': '152.16.40.20',
                    'if': 'xe1',
                },
            ],
            'nd_route_tbl': [
                {
                    'netmask': '112',
                    'gateway': '0064:ff9b:0:0:0:0:9810:6414',
                    'network': '0064:ff9b:0:0:0:0:9810:6414',
                    'if': 'xe0',
                },
                {
                    'netmask': '112',
                    'gateway': '0064:ff9b:0:0:0:0:9810:2814',
                    'network': '0064:ff9b:0:0:0:0:9810:2814',
                    'if': 'xe1',
                },
            ],
        }

        self.context_cfg = {
            'nodes': {
                'tg__1': self.tg__1,
                'vnf__1': self.vnf__1,
            },
            'networks': {
                'private': {
                    'vld_id': 'private',
                },
                'public': {
                    'vld_id': 'public',
                },
            },
        }

        self.vld0 = {
            'vnfd-connection-point-ref': [
                {
                    'vnfd-connection-point-ref': 'xe0',
                    'member-vnf-index-ref': '1',
                    'vnfd-id-ref': 'trexgen'
                },
                {
                    'vnfd-connection-point-ref': 'xe0',
                    'member-vnf-index-ref': '2',
                    'vnfd-id-ref': 'trexgen'
                }
            ],
            'type': 'ELAN',
            'id': 'private',
            'name': 'tg__1 to vnf__1 link 1'
        }

        self.vld1 = {
            'vnfd-connection-point-ref': [
                {
                    'vnfd-connection-point-ref': 'xe1',
                    'member-vnf-index-ref': '1',
                    'vnfd-id-ref': 'trexgen'
                },
                {
                    'vnfd-connection-point-ref': 'xe1',
                    'member-vnf-index-ref': '2',
                    'vnfd-id-ref': 'trexgen'
                }
            ],
            'type': 'ELAN',
            'id': 'public',
            'name': 'vnf__1 to tg__1 link 2'
        }

        self.topology = {
            'id': 'trex-tg-topology',
            'short-name': 'trex-tg-topology',
            'name': 'trex-tg-topology',
            'description': 'trex-tg-topology',
            'constituent-vnfd': [
                {
                    'member-vnf-index': '1',
                    'VNF model': 'tg_trex_tpl.yaml',
                    'vnfd-id-ref': 'tg__1',
                },
                {
                    'member-vnf-index': '2',
                    'VNF model': 'tg_trex_tpl.yaml',
                    'vnfd-id-ref': 'vnf__1',
                },
            ],
            'vld': [self.vld0, self.vld1],
        }

        self.scenario_cfg = {
            'task_path': "",
            "topology": self._get_file_abspath("vpe_vnf_topology.yaml"),
            'task_id': 'a70bdf4a-8e67-47a3-9dc1-273c14506eb7',
            'tc': 'tc_ipv4_1Mflow_64B_packetsize',
            'traffic_profile': 'ipv4_throughput_vpe.yaml',
            'type': 'ISB',
            'tc_options': {
                'rfc2544': {
                    'allowed_drop_rate': '0.8 - 1',
                },
            },
            'options': {
                'framesize': {'64B': 100}
            },
            'runner': {
                'object': 'NetworkServiceTestCase',
                'interval': 35,
                'output_filename': 'yardstick.out',
                'runner_id': 74476,
                'duration': 400,
                'type': 'Duration',
            },
            'traffic_options': {
                'flow': 'ipv4_1flow_Packets_vpe.yaml',
                'imix': 'imix_voice.yaml'
            },
            'nodes': {
                'tg__2': 'trafficgen_2.yardstick',
                'tg__1': 'trafficgen_1.yardstick',
                'vnf__1': 'vnf.yardstick',
            },
        }

        self.s = NetworkServiceTestCase(self.scenario_cfg, self.context_cfg)

    def _get_file_abspath(self, filename):
        curr_path = os.path.dirname(os.path.abspath(__file__))
        file_path = os.path.join(curr_path, filename)
        return file_path

    def test_ssh_manager(self):
        with mock.patch("yardstick.ssh.SSH") as ssh:
            ssh_mock = mock.Mock(autospec=ssh.SSH)
            ssh_mock.execute = \
                mock.Mock(return_value=(0, SYS_CLASS_NET + IP_ADDR_SHOW, ""))
            ssh.from_node.return_value = ssh_mock
            for node, node_dict in self.context_cfg["nodes"].items():
                with SshManager(node_dict) as conn:
                    self.assertIsNotNone(conn)

    def test___init__(self):
        assert self.topology

    def test__get_ip_flow_range(self):
        self.scenario_cfg["traffic_options"]["flow"] = \
            self._get_file_abspath("ipv4_1flow_Packets_vpe.yaml")
        result = '152.16.100.2-152.16.100.254'
        self.assertEqual(result, self.s._get_ip_flow_range({"tg__1": 'xe0'}))

    @mock.patch('yardstick.benchmark.scenarios.networking.vnf_generic.ipaddress')
    def test__get_ip_flow_range_no_node_data(self, mock_ipaddress):
        scenario_cfg = deepcopy(self.scenario_cfg)
        scenario_cfg["traffic_options"]["flow"] = \
            self._get_file_abspath("ipv4_1flow_Packets_vpe.yaml")

        mock_ipaddress.ip_network.return_value = ipaddr = mock.Mock()
        ipaddr.hosts.return_value = []

        expected = '0.0.0.0'
        result = self.s._get_ip_flow_range({"tg__2": 'xe0'})
        self.assertEqual(result, expected)

    def test__get_ip_flow_range_no_nodes(self):
        expected = '0.0.0.0'
        result = self.s._get_ip_flow_range({})
        self.assertEqual(result, expected)

    def test___get_traffic_flow(self):
        self.scenario_cfg["traffic_options"]["flow"] = \
            self._get_file_abspath("ipv4_1flow_Packets_vpe.yaml")
        self.scenario_cfg["options"] = {}
        self.scenario_cfg['options'] = {
            'flow': {
              'src_ip': [
                {
                  'tg__1': 'xe0',
                },
              ],
              'dst_ip': [
                {
                  'tg__1': 'xe1',
                },
              ],
              'public_ip': ['1.1.1.1'],
            },
        }
        result = {'flow': {'dst_ip0': '152.16.40.2-152.16.40.254',
                           'src_ip0': '152.16.100.2-152.16.100.254'}}

        self.assertEqual({'flow': {}}, self.s._get_traffic_flow())

    def test___get_traffic_flow_error(self):
        self.scenario_cfg["traffic_options"]["flow"] = \
            "ipv4_1flow_Packets_vpe.yaml1"
        self.assertEqual({'flow': {}}, self.s._get_traffic_flow())

    def test_get_vnf_imp(self):
        vnfd = COMPLETE_TREX_VNFD['vnfd:vnfd-catalog']['vnfd'][0]['class-name']
        with mock.patch.dict("sys.modules", STL_MOCKS):
            self.assertIsNotNone(self.s.get_vnf_impl(vnfd))

            with self.assertRaises(IncorrectConfig) as raised:
                self.s.get_vnf_impl('NonExistentClass')

            exc_str = str(raised.exception)
            print(exc_str)
            self.assertIn('No implementation', exc_str)
            self.assertIn('found in', exc_str)

    def test_load_vnf_models_invalid(self):
        self.context_cfg["nodes"]['tg__1']['VNF model'] = \
            self._get_file_abspath("tg_trex_tpl.yaml")
        self.context_cfg["nodes"]['vnf__1']['VNF model'] = \
            self._get_file_abspath("tg_trex_tpl.yaml")

        vnf = mock.Mock(autospec=GenericVNF)
        self.s.get_vnf_impl = mock.Mock(return_value=vnf)

        self.assertIsNotNone(
            self.s.load_vnf_models(self.scenario_cfg, self.context_cfg))

    def test_map_topology_to_infrastructure(self):
        with mock.patch("yardstick.ssh.SSH") as ssh:
            ssh_mock = mock.Mock(autospec=ssh.SSH)
            ssh_mock.execute = \
                mock.Mock(return_value=(0, SYS_CLASS_NET + IP_ADDR_SHOW, ""))
            ssh.from_node.return_value = ssh_mock
            self.s.map_topology_to_infrastructure()

        nodes = self.context_cfg["nodes"]
        self.assertEqual("../../vnf_descriptors/tg_rfc2544_tpl.yaml", nodes['tg__1']['VNF model'])
        self.assertEqual("../../vnf_descriptors/vpe_vnf.yaml", nodes['vnf__1']['VNF model'])

    def test_map_topology_to_infrastructure_insufficient_nodes(self):
        del self.context_cfg['nodes']['vnf__1']
        with mock.patch("yardstick.ssh.SSH") as ssh:
            ssh_mock = mock.Mock(autospec=ssh.SSH)
            ssh_mock.execute = \
                mock.Mock(return_value=(1, SYS_CLASS_NET + IP_ADDR_SHOW, ""))
            ssh.from_node.return_value = ssh_mock

            with self.assertRaises(IncorrectConfig):
                self.s.map_topology_to_infrastructure()

    def test_map_topology_to_infrastructure_config_invalid(self):
        cfg = dict(self.context_cfg)
        del cfg['nodes']['vnf__1']['interfaces']['xe0']['local_mac']
        with mock.patch("yardstick.ssh.SSH") as ssh:
            ssh_mock = mock.Mock(autospec=ssh.SSH)
            ssh_mock.execute = \
                mock.Mock(return_value=(0, SYS_CLASS_NET + IP_ADDR_SHOW, ""))
            ssh.from_node.return_value = ssh_mock

            with self.assertRaises(IncorrectConfig):
                self.s.map_topology_to_infrastructure()

    def test__resolve_topology_invalid_config(self):
        with mock.patch("yardstick.ssh.SSH") as ssh:
            ssh_mock = mock.Mock(autospec=ssh.SSH)
            ssh_mock.execute = \
                mock.Mock(return_value=(0, SYS_CLASS_NET + IP_ADDR_SHOW, ""))
            ssh.from_node.return_value = ssh_mock

            # purge an important key from the data structure
            for interface in self.tg__1['interfaces'].values():
                del interface['local_mac']

            with mock.patch(
                "yardstick.benchmark.scenarios.networking.vnf_generic.LOG") as mock_log:
                with self.assertRaises(IncorrectConfig) as raised:
                    self.s._resolve_topology()

            self.assertIn('not found', str(raised.exception))

            # restore local_mac
            for index, interface in enumerate(self.tg__1['interfaces'].values()):
                interface['local_mac'] = '00:00:00:00:00:{:2x}'.format(index)

            # make a connection point ref with 3 points
            self.s.topology["vld"][0]['vnfd-connection-point-ref'].append(
                self.s.topology["vld"][0]['vnfd-connection-point-ref'][0])

            with mock.patch(
                "yardstick.benchmark.scenarios.networking.vnf_generic.LOG") as mock_log:
                with self.assertRaises(IncorrectConfig) as raised:
                    self.s._resolve_topology()

            self.assertIn('wrong endpoint count', str(raised.exception))

            # make a connection point ref with 1 point
            self.s.topology["vld"][0]['vnfd-connection-point-ref'] = \
                self.s.topology["vld"][0]['vnfd-connection-point-ref'][:1]

            with mock.patch(
                "yardstick.benchmark.scenarios.networking.vnf_generic.LOG") as mock_log:
                with self.assertRaises(IncorrectConfig) as raised:
                    self.s._resolve_topology()

            self.assertIn('wrong endpoint count', str(raised.exception))

    def test_run(self):
        tgen = mock.Mock(autospec=GenericTrafficGen)
        tgen.traffic_finished = True
        verified_dict = {"verified": True}
        tgen.verify_traffic = lambda x: verified_dict
        tgen.name = "tgen__1"
        vnf = mock.Mock(autospec=GenericVNF)
        vnf.runs_traffic = False
        self.s.vnfs = [tgen, vnf]
        self.s.traffic_profile = mock.Mock()
        self.s.collector = mock.Mock(autospec=Collector)
        self.s.collector.get_kpi = \
            mock.Mock(return_value={tgen.name: verified_dict})
        result = {}
        self.s.run(result)
        self.assertDictEqual(result, {tgen.name: verified_dict})

    def test_setup(self):
        with mock.patch("yardstick.ssh.SSH") as ssh:
            ssh_mock = mock.Mock(autospec=ssh.SSH)
            ssh_mock.execute = \
                mock.Mock(return_value=(0, SYS_CLASS_NET + IP_ADDR_SHOW, ""))
            ssh.from_node.return_value = ssh_mock

            tgen = mock.Mock(autospec=GenericTrafficGen)
            tgen.traffic_finished = True
            verified_dict = {"verified": True}
            tgen.verify_traffic = lambda x: verified_dict
            tgen.terminate = mock.Mock(return_value=True)
            tgen.name = "tgen__1"
            vnf = mock.Mock(autospec=GenericVNF)
            vnf.runs_traffic = False
            vnf.terminate = mock.Mock(return_value=True)
            self.s.vnfs = [tgen, vnf]
            self.s.traffic_profile = mock.Mock()
            self.s.collector = mock.Mock(autospec=Collector)
            self.s.collector.get_kpi = \
                mock.Mock(return_value={tgen.name: verified_dict})
            self.s.map_topology_to_infrastructure = mock.Mock(return_value=0)
            self.s.load_vnf_models = mock.Mock(return_value=self.s.vnfs)
            self.s._fill_traffic_profile = \
                mock.Mock(return_value=TRAFFIC_PROFILE)
            self.assertEqual(None, self.s.setup())

    def test__get_traffic_profile(self):
        self.scenario_cfg["traffic_profile"] = \
            self._get_file_abspath("ipv4_throughput_vpe.yaml")
        self.assertIsNotNone(self.s._get_traffic_profile())

    def test__get_traffic_profile_exception(self):
        with mock.patch.dict(self.scenario_cfg, {'traffic_profile': ''}):
            with self.assertRaises(IOError):
                self.s._get_traffic_profile()

    def test___get_traffic_imix_exception(self):
        with mock.patch.dict(self.scenario_cfg["traffic_options"], {'imix': ''}):
            self.assertEqual({'imix': {'64B': 100}}, self.s._get_traffic_imix())

    def test__fill_traffic_profile(self):
        with mock.patch.dict("sys.modules", STL_MOCKS):
            self.scenario_cfg["traffic_profile"] = \
                self._get_file_abspath("ipv4_throughput_vpe.yaml")
            self.scenario_cfg["traffic_options"]["flow"] = \
                self._get_file_abspath("ipv4_1flow_Packets_vpe.yaml")
            self.scenario_cfg["traffic_options"]["imix"] = \
                self._get_file_abspath("imix_voice.yaml")
            self.assertIsNotNone(self.s._fill_traffic_profile())

    def test_teardown(self):
        vnf = mock.Mock(autospec=GenericVNF)
        vnf.terminate = \
            mock.Mock(return_value=True)
        self.s.vnfs = [vnf]
        self.s.traffic_profile = mock.Mock()
        self.s.collector = mock.Mock(autospec=Collector)
        self.s.collector.stop = \
            mock.Mock(return_value=True)
        self.assertIsNone(self.s.teardown())

    SAMPLE_NETDEVS = {
        'enp11s0': {
            'address': '0a:de:ad:be:ef:f5',
            'device': '0x1533',
            'driver': 'igb',
            'ifindex': '2',
            'interface_name': 'enp11s0',
            'operstate': 'down',
            'pci_bus_id': '0000:0b:00.0',
            'subsystem_device': '0x1533',
            'subsystem_vendor': '0x15d9',
            'vendor': '0x8086'
        },
        'lan': {
            'address': '0a:de:ad:be:ef:f4',
            'device': '0x153a',
            'driver': 'e1000e',
            'ifindex': '3',
            'interface_name': 'lan',
            'operstate': 'up',
            'pci_bus_id': '0000:00:19.0',
            'subsystem_device': '0x153a',
            'subsystem_vendor': '0x15d9',
            'vendor': '0x8086'
        }
    }

    SAMPLE_VM_NETDEVS = {
        'eth1': {
            'address': 'fa:de:ad:be:ef:5b',
            'device': '0x0001',
            'driver': 'virtio_net',
            'ifindex': '3',
            'interface_name': 'eth1',
            'operstate': 'down',
            'pci_bus_id': '0000:00:04.0',
            'vendor': '0x1af4'
        }
    }

    def test_parse_netdev_info(self):
        output = """\
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/ifindex:2
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/address:0a:de:ad:be:ef:f5
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/operstate:down
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/vendor:0x8086
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/device:0x1533
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/subsystem_vendor:0x15d9
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/device/subsystem_device:0x1533
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/driver:igb
/sys/devices/pci0000:00/0000:00:1c.3/0000:0b:00.0/net/enp11s0/pci_bus_id:0000:0b:00.0
/sys/devices/pci0000:00/0000:00:19.0/net/lan/ifindex:3
/sys/devices/pci0000:00/0000:00:19.0/net/lan/address:0a:de:ad:be:ef:f4
/sys/devices/pci0000:00/0000:00:19.0/net/lan/operstate:up
/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/vendor:0x8086
/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/device:0x153a
/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/subsystem_vendor:0x15d9
/sys/devices/pci0000:00/0000:00:19.0/net/lan/device/subsystem_device:0x153a
/sys/devices/pci0000:00/0000:00:19.0/net/lan/driver:e1000e
/sys/devices/pci0000:00/0000:00:19.0/net/lan/pci_bus_id:0000:00:19.0
"""
        res = NetworkServiceTestCase.parse_netdev_info(output)
        assert res == self.SAMPLE_NETDEVS

    def test_parse_netdev_info_virtio(self):
        output = """\
/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/ifindex:3
/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/address:fa:de:ad:be:ef:5b
/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/operstate:down
/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/device/vendor:0x1af4
/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/device/device:0x0001
/sys/devices/pci0000:00/0000:00:04.0/virtio1/net/eth1/driver:virtio_net
"""
        res = NetworkServiceTestCase.parse_netdev_info(output)
        assert res == self.SAMPLE_VM_NETDEVS

    def test_probe_missing_values(self):
        netdevs = self.SAMPLE_NETDEVS.copy()
        network = {'local_mac': '0a:de:ad:be:ef:f5'}
        NetworkServiceTestCase._probe_missing_values(netdevs, network)
        assert network['vpci'] == '0000:0b:00.0'

        network = {'local_mac': '0a:de:ad:be:ef:f4'}
        NetworkServiceTestCase._probe_missing_values(netdevs, network)
        assert network['vpci'] == '0000:00:19.0'

    def test_open_relative_path(self):
        mock_open = mock.mock_open()
        mock_open_result = mock_open()
        mock_open_call_count = 1  # initial call to get result

        module_name = \
            'yardstick.benchmark.scenarios.networking.vnf_generic.open'

        # test
        with mock.patch(module_name, mock_open, create=True):
            self.assertEqual(open_relative_file('foo', 'bar'), mock_open_result)

            mock_open_call_count += 1  # one more call expected
            self.assertEqual(mock_open.call_count, mock_open_call_count)
            self.assertIn('foo', mock_open.call_args_list[-1][0][0])
            self.assertNotIn('bar', mock_open.call_args_list[-1][0][0])

            def open_effect(*args, **kwargs):
                if kwargs.get('name', args[0]) == os.path.join('bar', 'foo'):
                    return mock_open_result
                raise IOError(errno.ENOENT, 'not found')

            mock_open.side_effect = open_effect
            self.assertEqual(open_relative_file('foo', 'bar'), mock_open_result)

            mock_open_call_count += 2  # two more calls expected
            self.assertEqual(mock_open.call_count, mock_open_call_count)
            self.assertIn('foo', mock_open.call_args_list[-1][0][0])
            self.assertIn('bar', mock_open.call_args_list[-1][0][0])

            # test an IOError of type ENOENT
            mock_open.side_effect = IOError(errno.ENOENT, 'not found')
            with self.assertRaises(IOError):
                # the second call still raises
                open_relative_file('foo', 'bar')

            mock_open_call_count += 2  # two more calls expected
            self.assertEqual(mock_open.call_count, mock_open_call_count)
            self.assertIn('foo', mock_open.call_args_list[-1][0][0])
            self.assertIn('bar', mock_open.call_args_list[-1][0][0])

            # test an IOError other than ENOENT
            mock_open.side_effect = IOError(errno.EBUSY, 'busy')
            with self.assertRaises(IOError):
                open_relative_file('foo', 'bar')

            mock_open_call_count += 1  # one more call expected
            self.assertEqual(mock_open.call_count, mock_open_call_count)