aboutsummaryrefslogtreecommitdiffstats
path: root/test/test_nfvbench.py
blob: c772d7bae8c4cae3656a8e51da8a4563e103f134 (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
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
#!/usr/bin/env python
# Copyright 2016 Cisco Systems, Inc.  All rights reserved.
#
#    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 mock import patch
import pytest

from .mock_trex import no_op

import json
import logging
import sys
from attrdict import AttrDict
from nfvbench.config import config_loads
from nfvbench.credentials import Credentials
from nfvbench.fluentd import FluentLogHandler
import nfvbench.log
import nfvbench.nfvbench
from nfvbench.traffic_client import Device
from nfvbench.traffic_client import GeneratorConfig
from nfvbench.traffic_client import IpBlock
from nfvbench.traffic_client import TrafficClient
from nfvbench.traffic_client import TrafficClientException
import nfvbench.traffic_gen.traffic_utils as traffic_utils
import nfvbench.utils as utils

# just to get rid of the unused function warning
no_op()

def setup_module(module):
    """Enable log."""
    nfvbench.log.setup(mute_stdout=True)

# =========================================================================
# Traffic client tests
# =========================================================================

def test_parse_rate_str():
    parse_rate_str = traffic_utils.parse_rate_str
    try:
        assert parse_rate_str('100%') == {'rate_percent': '100.0'}
        assert parse_rate_str('37.5%') == {'rate_percent': '37.5'}
        assert parse_rate_str('100%') == {'rate_percent': '100.0'}
        assert parse_rate_str('60pps') == {'rate_pps': '60'}
        assert parse_rate_str('60kpps') == {'rate_pps': '60000'}
        assert parse_rate_str('6Mpps') == {'rate_pps': '6000000'}
        assert parse_rate_str('6gpps') == {'rate_pps': '6000000000'}
        assert parse_rate_str('80bps') == {'rate_bps': '80'}
        assert parse_rate_str('80bps') == {'rate_bps': '80'}
        assert parse_rate_str('80kbps') == {'rate_bps': '80000'}
        assert parse_rate_str('80kBps') == {'rate_bps': '640000'}
        assert parse_rate_str('80Mbps') == {'rate_bps': '80000000'}
        assert parse_rate_str('80 MBps') == {'rate_bps': '640000000'}
        assert parse_rate_str('80Gbps') == {'rate_bps': '80000000000'}
    except Exception as exc:
        assert False, exc.message

    def should_raise_error(str):
        try:
            parse_rate_str(str)
        except Exception:
            return True
        else:
            return False
        return False

    assert should_raise_error('101')
    assert should_raise_error('201%')
    assert should_raise_error('10Kbps')
    assert should_raise_error('0kbps')
    assert should_raise_error('0pps')
    assert should_raise_error('-1bps')


def test_rate_conversion():
    assert traffic_utils.load_to_bps(50, 10000000000) == pytest.approx(5000000000.0)
    assert traffic_utils.load_to_bps(37, 10000000000) == pytest.approx(3700000000.0)
    assert traffic_utils.load_to_bps(100, 10000000000) == pytest.approx(10000000000.0)

    assert traffic_utils.bps_to_load(5000000000.0, 10000000000) == pytest.approx(50.0)
    assert traffic_utils.bps_to_load(3700000000.0, 10000000000) == pytest.approx(37.0)
    assert traffic_utils.bps_to_load(10000000000.0, 10000000000) == pytest.approx(100.0)

    assert traffic_utils.bps_to_pps(500000, 64) == pytest.approx(744.047619048)
    assert traffic_utils.bps_to_pps(388888, 1518) == pytest.approx(31.6066319896)
    assert traffic_utils.bps_to_pps(9298322222, 340.3) == pytest.approx(3225895.85831)

    assert traffic_utils.pps_to_bps(744.047619048, 64) == pytest.approx(500000)
    assert traffic_utils.pps_to_bps(31.6066319896, 1518) == pytest.approx(388888)
    assert traffic_utils.pps_to_bps(3225895.85831, 340.3) == pytest.approx(9298322222)


# pps at 10Gbps line rate for 64 byte frames
LR_64B_PPS = 14880952
LR_1518B_PPS = 812743

def assert_equivalence(reference, value, allowance_pct=1):
    """Assert if a value is equivalent to a reference value with given margin.

    :param float reference: reference value to compare to
    :param float value: value to compare to reference
    :param float allowance_pct: max allowed percentage of margin
        0 : requires exact match
        1 : must be equal within 1% of the reference value
        ...
        100: always true
    """
    if reference == 0:
        assert value == 0
    else:
        assert abs(value - reference) * 100 / reference <= allowance_pct

def test_load_from_rate():
    assert traffic_utils.get_load_from_rate('100%') == 100
    assert_equivalence(100, traffic_utils.get_load_from_rate(str(LR_64B_PPS) + 'pps'))
    assert_equivalence(50, traffic_utils.get_load_from_rate(str(LR_64B_PPS / 2) + 'pps'))
    assert_equivalence(100, traffic_utils.get_load_from_rate('10Gbps'))
    assert_equivalence(50, traffic_utils.get_load_from_rate('5000Mbps'))
    assert_equivalence(1, traffic_utils.get_load_from_rate('100Mbps'))
    assert_equivalence(100, traffic_utils.get_load_from_rate(str(LR_1518B_PPS) + 'pps',
                                                             avg_frame_size=1518))
    assert_equivalence(100, traffic_utils.get_load_from_rate(str(LR_1518B_PPS * 2) + 'pps',
                                                             avg_frame_size=1518,
                                                             line_rate='20Gbps'))

# =========================================================================
# Other tests
# =========================================================================

def test_no_credentials():
    cred = Credentials('/completely/wrong/path/openrc', None, False)
    if cred.rc_auth_url:
        # shouldn't get valid data unless user set environment variables
        assert False
    else:
        assert True

def test_ip_block():
    ipb = IpBlock('10.0.0.0', '0.0.0.1', 256)
    assert ipb.get_ip() == '10.0.0.0'
    assert ipb.get_ip(255) == '10.0.0.255'
    with pytest.raises(IndexError):
        ipb.get_ip(256)
    ipb = IpBlock('10.0.0.0', '0.0.0.1', 1)
    assert ipb.get_ip() == '10.0.0.0'
    with pytest.raises(IndexError):
        ipb.get_ip(1)

    ipb = IpBlock('10.0.0.0', '0.0.0.2', 256)
    assert ipb.get_ip() == '10.0.0.0'
    assert ipb.get_ip(1) == '10.0.0.2'
    assert ipb.get_ip(127) == '10.0.0.254'
    assert ipb.get_ip(128) == '10.0.1.0'
    with pytest.raises(IndexError):
        ipb.get_ip(256)

    # verify with step larger than 1
    ipb = IpBlock('10.0.0.0', '0.0.0.2', 256)
    assert ipb.get_ip() == '10.0.0.0'
    assert ipb.get_ip(1) == '10.0.0.2'
    assert ipb.get_ip(128) == '10.0.1.0'
    assert ipb.get_ip(255) == '10.0.1.254'
    with pytest.raises(IndexError):
        ipb.get_ip(256)

    ipb = IpBlock('10.0.0.0', '0.0.0.2', 128)
    assert ipb.get_ip() == '10.0.0.0'
    assert ipb.get_ip(1) == '10.0.0.2'
    assert ipb.get_ip(127) == '10.0.0.254'
    with pytest.raises(IndexError):
        ipb.get_ip(128)

    ipb = IpBlock('10.0.0.0', '0.0.0.4', 64)
    assert ipb.get_ip() == '10.0.0.0'
    assert ipb.get_ip(1) == '10.0.0.4'
    assert ipb.get_ip(63) == '10.0.0.252'
    with pytest.raises(IndexError):
        ipb.get_ip(64)

    ipb = IpBlock('10.0.0.0', '0.0.0.10', 1)
    assert ipb.get_ip() == '10.0.0.0'
    with pytest.raises(IndexError):
        ipb.get_ip(1)


def test_lcm():
    assert utils.lcm(10, 2) == 10
    assert utils.lcm(1, 256) == 256
    assert utils.lcm(10, 256) == 1280
    assert utils.lcm(utils.lcm(10, 2), utils.lcm(1, 256))
    with pytest.raises(TypeError):
        utils.lcm(0, 0)


def test_flow_count_limit():
    # lcm ip src and dst /32
    lcm_ip = utils.lcm(1, 1) == 1
    # port udp src = 1 port udp dst [1,29]
    src_min = 1
    src_max = 1
    dst_min = 1
    dst_max = 29
    udp_step = 3
    udp_src_size = Device.check_range_size(int(src_max) - int(src_min) + 1,
                                           udp_step)
    udp_dst_size = Device.check_range_size(int(dst_max) - int(dst_min) + 1,
                                           udp_step)
    lcm_port = utils.lcm(udp_src_size, udp_dst_size)
    assert utils.lcm(lcm_ip, lcm_port) < 29


def test_check_range_size():
    assert Device.check_range_size(256, 1) == 256
    assert Device.check_range_size(256, 3) == 86
    assert Device.check_range_size(256, 4) == 64
    assert Device.check_range_size(16, 10) == 2
    assert Device.check_range_size(1, 10) == 1
    with pytest.raises(ZeroDivisionError):
        Device.check_range_size(256, 0)


def test_reserve_ip_range():
    ipb = IpBlock('10.0.0.0', '0.0.0.1', 256)
    src_ip_first, src_ip_last = ipb.reserve_ip_range(256)
    assert src_ip_first == "10.0.0.0"
    assert src_ip_last == "10.0.0.255"
    ipb = IpBlock('20.0.0.0', '0.0.0.1', 2)
    src_ip_first, src_ip_last = ipb.reserve_ip_range(2)
    assert src_ip_first == "20.0.0.0"
    assert src_ip_last == "20.0.0.1"
    ipb = IpBlock('30.0.0.0', '0.0.0.1', 2)
    with pytest.raises(IndexError):
        ipb.reserve_ip_range(256)


def check_stream_configs(gen_config):
    """Verify that the range for each chain have adjacent IP ranges without holes between chains."""
    config = gen_config.config
    tgc = config['traffic_generator']
    step = Device.ip_to_int(tgc['ip_addrs_step'])
    cfc = 0
    sip = Device.ip_to_int(tgc['ip_addrs'][0].split('/')[0])
    dip = Device.ip_to_int(tgc['ip_addrs'][1].split('/')[0])
    stream_configs = gen_config.devices[0].get_stream_configs()
    for index in range(config['service_chain_count']):
        stream_cfg = stream_configs[index]
        # ip_src_static == True
        assert stream_cfg['ip_src_count'] == 1
        if index == 0:
            assert stream_cfg['ip_dst_count'] == 4999
        else:
            assert stream_cfg['ip_dst_count'] == 5000
        assert stream_cfg['ip_src_addr'] == Device.int_to_ip(sip)
        assert Device.ip_to_int(stream_cfg['ip_src_addr']) == sip
        assert Device.ip_to_int(stream_cfg['ip_dst_addr']) == dip
        count = stream_cfg['ip_dst_count']
        cfc += count
        sip += step
        dip += count * step
    assert cfc == int(config['flow_count'] / 2)

def _check_device_flow_config(step_ip):
    config = _get_dummy_tg_config('PVP', '1Mpps', scc=10, fc=99999, step_ip=step_ip)
    gen_config = GeneratorConfig(config)
    check_stream_configs(gen_config)

def test_device_flow_config():
    _check_device_flow_config('0.0.0.1')
    _check_device_flow_config('0.0.0.2')


def check_udp_stream_configs(gen_config, expected_cfg):
    """Verify that the range for each chain have adjacent UDP ports without holes between chains."""
    config = gen_config.config
    stream_configs = gen_config.devices[0].get_stream_configs()
    for index in range(config['service_chain_count']):
        stream_cfg = stream_configs[index]
        expected = expected_cfg[index]
        assert stream_cfg['ip_src_addr'] == expected['ip_src_addr']
        assert stream_cfg['ip_src_addr_max'] == expected['ip_src_addr_max']
        assert stream_cfg['ip_src_count'] == expected['ip_src_count']

        assert stream_cfg['ip_dst_addr'] == expected['ip_dst_addr']
        assert stream_cfg['ip_dst_addr_max'] == expected['ip_dst_addr_max']
        assert stream_cfg['ip_dst_count'] == expected['ip_dst_count']

        assert stream_cfg['udp_src_port'] == expected['udp_src_port']
        assert stream_cfg['udp_src_port_max'] == expected['udp_src_port_max']
        assert stream_cfg['udp_src_count'] == expected['udp_src_count']

        assert stream_cfg['udp_dst_port'] == expected['udp_dst_port']
        assert stream_cfg['udp_dst_port_max'] == expected['udp_dst_port_max']
        assert stream_cfg['udp_dst_count'] == expected['udp_dst_count']

        lcm_ip = utils.lcm(stream_cfg['ip_src_count'], stream_cfg['ip_dst_count'])
        udp_src_size = int(stream_cfg['udp_src_port_max']) - int(stream_cfg['udp_src_port']) + 1
        udp_dst_size = int(stream_cfg['udp_dst_port_max']) - int(stream_cfg['udp_dst_port']) + 1
        lcm_udp = utils.lcm(udp_src_size, udp_dst_size)
        assert utils.lcm(lcm_ip, lcm_udp) >= stream_cfg['count']


def _check_device_udp_flow_config(param, expected_cfg):
    config = _get_dummy_tg_config('PVP', '1Mpps',
                                  scc=param['scc'],
                                  ip_src_static=param['ip_src_static'],
                                  fc=param['flow_count'],
                                  ip0=param['ip_src_addr'],
                                  ip1=param['ip_dst_addr'],
                                  step_ip=param['ip_addrs_step'],
                                  src_udp=param['udp_src_port'],
                                  dst_udp=param['udp_dst_port'],
                                  step_udp=param['udp_port_step'])
    gen_config = GeneratorConfig(config)
    check_udp_stream_configs(gen_config, expected_cfg)


def __get_udp_params():
    param = {'ip_src_static': True,
             'ip_src_addr': '110.0.0.0/32',
             'ip_dst_addr': '120.0.0.0/32',
             'ip_addrs_step': '0.0.0.1',
             'udp_src_port': 53,
             'udp_dst_port': 53,
             'flow_count': 2,
             'scc': 1,
             'udp_port_step': '1'}
    return param


def __get_udp_expected_list():
    expected = {'ip_src_addr': '110.0.0.0',
                'ip_src_addr_max': '110.0.0.0',
                'ip_src_count': 1,
                'ip_dst_addr': '120.0.0.0',
                'ip_dst_addr_max': '120.0.0.0',
                'ip_dst_count': 1,
                'udp_src_port': 53,
                'udp_src_port_max': 53,
                'udp_src_count': 1,
                'udp_dst_port': 53,
                'udp_dst_port_max': 53,
                'udp_dst_count': 1}
    return expected


def test_device_udp_flow_config_single_ip_single_port():
    param = __get_udp_params()
    expected = __get_udp_expected_list()
    _check_device_udp_flow_config(param, [expected])


def test_device_udp_flow_config_single_ip_multiple_src_ports():
    param = __get_udp_params()
    expected = __get_udp_expected_list()
    # Overwrite the udp_src_port value to define a large range of ports
    # instead of a single port, in order to check if the imposed
    # flow count is respected. Notice that udp range >> flow count.
    param['udp_src_port'] = [53, 1024]
    param['flow_count'] = 10
    expected['udp_src_port_max'] = 57
    expected['udp_src_count'] = 5
    _check_device_udp_flow_config(param, [expected])


def test_device_udp_flow_config_multiple_ip_src_single_port():
    param = __get_udp_params()
    expected = __get_udp_expected_list()
    # Re affect the default udp_src_port values and
    # overwrite the ip_dst_addr value to define a large range of addresses
    # instead of a single one, in order to check if the imposed
    # flow count is respected. Notice that the netmask allows a very larger
    # range of possible addresses than the flow count value.
    param['udp_src_port'] = 53
    param['flow_count'] = 10
    param['ip_src_static'] = False
    param['ip_dst_addr'] = '120.0.0.0/24'

    expected['udp_src_port_max'] = 53
    expected['udp_src_count'] = 1
    expected['ip_dst_addr'] = '120.0.0.0'
    expected['ip_dst_addr_max'] = '120.0.0.4'
    expected['ip_dst_count'] = 5
    _check_device_udp_flow_config(param, [expected])


def test_device_udp_flow_config_multiple_ip_src_dst_multiple_src_dst_ports():
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    param['udp_src_port'] = [49000, 49031]
    param['udp_dst_port'] = [50000, 50033]
    param['ip_src_static'] = False
    param['flow_count'] = 1000
    param['ip_src_addr'] = '110.0.0.0/16'
    param['ip_dst_addr'] = '120.0.0.0/16'

    expected['udp_src_port'] = 49000
    expected['udp_src_port_max'] = 49024
    expected['udp_dst_port'] = 50000
    expected['udp_dst_port_max'] = 50024
    expected['udp_src_count'] = 25
    expected['udp_dst_count'] = 25
    expected['ip_src_addr_max'] = '110.0.1.243'
    expected['ip_src_count'] = 500
    expected['ip_dst_addr'] = '120.0.0.0'
    expected['ip_dst_addr_max'] = '120.0.1.243'
    expected['ip_dst_count'] = 500
    _check_device_udp_flow_config(param, [expected])




def test_device_udp_flow_config_random_multiple_ip_src_dst_multiple_src_dst_ports():
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    param['udp_src_port'] = [1025, 65000]
    param['udp_dst_port'] = [1024, 65000]
    param['ip_src_static'] = False
    param['ip_addrs_step'] = 'random'
    param['udp_port_step'] = 'random'
    param['flow_count'] = 1000000
    param['ip_src_addr'] = '110.0.0.0/16'
    param['ip_dst_addr'] = '120.0.0.0/16'

    expected['udp_src_port'] = 1025
    expected['udp_src_port_max'] = 65000
    expected['udp_dst_port'] = 1024
    expected['udp_dst_port_max'] = 65000
    expected['udp_src_count'] = 62500
    expected['udp_dst_count'] = 62500
    expected['ip_src_addr_max'] = '110.0.0.31'
    expected['ip_src_count'] = 32
    expected['ip_dst_addr'] = '120.0.0.0'
    expected['ip_dst_addr_max'] = '120.0.0.31'
    expected['ip_dst_count'] = 32
    _check_device_udp_flow_config(param, [expected])

def test_device_udp_flow_config_random_multiple_ip_srcstatic_dst_multiple_src_dst_ports():
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    param['udp_src_port'] = [1025, 65000]
    param['udp_dst_port'] = [1024, 65000]
    param['ip_src_static'] = True
    param['ip_addrs_step'] = 'random'
    param['udp_port_step'] = 'random'
    param['flow_count'] = 1000000
    param['ip_src_addr'] = '110.0.0.0/16'
    param['ip_dst_addr'] = '120.0.0.0/16'

    expected['udp_src_port'] = 1025
    expected['udp_src_port_max'] = 65000
    expected['udp_dst_port'] = 1024
    expected['udp_dst_port_max'] = 65000
    expected['udp_src_count'] = 1
    expected['udp_dst_count'] = 62500
    expected['ip_src_addr_max'] = '110.0.0.0'
    expected['ip_src_count'] = 1
    expected['ip_dst_addr'] = '120.0.0.0'
    expected['ip_dst_addr_max'] = '120.0.0.31'
    expected['ip_dst_count'] = 32
    _check_device_udp_flow_config(param, [expected])



def test_device_udp_flow_config_single_ip_src_dst_multiple_src_dst_ports():
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    param['udp_src_port'] = [49152, 49154]
    param['udp_dst_port'] = [50001, 50005]
    param['ip_src_static'] = False
    param['flow_count'] = 10
    param['ip_src_addr'] = '110.0.0.0/32'
    param['ip_dst_addr'] = '120.0.0.0/32'

    expected['udp_src_port'] = 49152
    expected['udp_src_port_max'] = 49152
    expected['udp_dst_port'] = 50001
    expected['udp_dst_port_max'] = 50005
    expected['udp_src_count'] = 1
    expected['udp_dst_count'] = 5
    expected['ip_src_addr_max'] = '110.0.0.0'
    expected['ip_src_count'] = 1
    expected['ip_dst_addr'] = '120.0.0.0'
    expected['ip_dst_addr_max'] = '120.0.0.0'
    expected['ip_dst_count'] = 1
    _check_device_udp_flow_config(param, [expected])


def test_device_udp_flow_config_single_ip_src_dst_single_src_multiple_dst_ports():
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    param['udp_src_port'] = 49152
    param['udp_dst_port'] = [50001, 50029]
    param['udp_port_step'] = '3'
    param['flow_count'] = 58
    param['ip_src_addr'] = '110.0.0.0/32'
    param['ip_dst_addr'] = '120.0.0.0/32'

    expected['udp_src_port'] = 49152
    expected['udp_src_port_max'] = 49152
    expected['udp_dst_port'] = 50001
    expected['udp_dst_port_max'] = 50029
    expected['udp_src_count'] = 1
    expected['udp_dst_count'] = 29
    expected['ip_src_addr_max'] = '110.0.0.0'
    expected['ip_src_count'] = 1
    expected['ip_dst_addr'] = '120.0.0.0'
    expected['ip_dst_addr_max'] = '120.0.0.0'
    expected['ip_dst_count'] = 1
    with pytest.raises(TrafficClientException):
        _check_device_udp_flow_config(param, [expected])


def test_device_udp_flow_config_scc3():
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    param['scc'] = 3
    param['udp_src_port'] = [49000, 49031]
    param['udp_dst_port'] = [50000, 50033]
    param['ip_src_static'] = False
    param['flow_count'] = 10000
    param['ip_src_addr'] = '110.0.0.0/16'
    param['ip_dst_addr'] = '120.0.0.0/16'

    expected_cfg = []
    # chain 0
    expected_scc0 = dict(expected)
    expected_scc0['udp_src_port'] = 49000
    expected_scc0['udp_src_port_max'] = 49016
    expected_scc0['udp_dst_port'] = 50000
    expected_scc0['udp_dst_port_max'] = 50033
    expected_scc0['udp_src_count'] = 17
    expected_scc0['udp_dst_count'] = 34
    expected_scc0['ip_src_addr_max'] = '110.0.6.129'
    expected_scc0['ip_src_count'] = 1666
    expected_scc0['ip_dst_addr'] = '120.0.0.0'
    expected_scc0['ip_dst_addr_max'] = '120.0.6.129'
    expected_scc0['ip_dst_count'] = 1666
    expected_cfg.append(expected_scc0)

    # chain 1
    expected_scc1 = dict(expected)
    expected_scc1['udp_src_port'] = 49000
    expected_scc1['udp_src_port_max'] = 49000
    expected_scc1['udp_dst_port'] = 50000
    expected_scc1['udp_dst_port_max'] = 50000
    expected_scc1['udp_src_count'] = 1
    expected_scc1['udp_dst_count'] = 1
    expected_scc1['ip_src_addr'] = '110.0.6.130'
    expected_scc1['ip_src_addr_max'] = '110.0.13.4'
    expected_scc1['ip_src_count'] = 1667
    expected_scc1['ip_dst_addr'] = '120.0.6.130'
    expected_scc1['ip_dst_addr_max'] = '120.0.13.4'
    expected_scc1['ip_dst_count'] = 1667
    expected_cfg.append(expected_scc1)

    # chain 2
    expected_scc2 = dict(expected)
    expected_scc2['udp_src_port'] = 49000
    expected_scc2['udp_src_port_max'] = 49000
    expected_scc2['udp_dst_port'] = 50000
    expected_scc2['udp_dst_port_max'] = 50000
    expected_scc2['udp_src_count'] = 1
    expected_scc2['udp_dst_count'] = 1
    expected_scc2['ip_src_addr'] = '110.0.13.5'
    expected_scc2['ip_src_addr_max'] = '110.0.19.135'
    expected_scc2['ip_src_count'] = 1667
    expected_scc2['ip_dst_addr'] = '120.0.13.5'
    expected_scc2['ip_dst_addr_max'] = '120.0.19.135'
    expected_scc2['ip_dst_count'] = 1667
    expected_cfg.append(expected_scc2)

    _check_device_udp_flow_config(param, expected_cfg)


def test_device_udp_flow_config_doc_example1(caplog):
    caplog.clear()
    caplog.set_level(logging.INFO)
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    # Multiflow unitary test corresponding to first example in documentation
    param['scc'] = 3
    param['udp_src_port'] = 53
    param['udp_dst_port'] = 53
    param['ip_src_static'] = True
    param['flow_count'] = 100
    param['ip_src_addr'] = '110.0.0.0/8'
    param['ip_dst_addr'] = '120.0.0.0/8'

    expected_cfg = []
    # chain 0
    expected_scc0 = dict(expected)
    expected_scc0['udp_src_port'] = 53
    expected_scc0['udp_src_port_max'] = 53
    expected_scc0['udp_dst_port'] = 53
    expected_scc0['udp_dst_port_max'] = 53
    expected_scc0['udp_src_count'] = 1
    expected_scc0['udp_dst_count'] = 1
    expected_scc0['ip_src_addr'] = '110.0.0.0'
    expected_scc0['ip_src_addr_max'] = '110.0.0.0'
    expected_scc0['ip_src_count'] = 1
    expected_scc0['ip_dst_addr'] = '120.0.0.0'
    expected_scc0['ip_dst_addr_max'] = '120.0.0.15'
    expected_scc0['ip_dst_count'] = 16
    expected_cfg.append(expected_scc0)

    # chain 1
    expected_scc1 = dict(expected)
    expected_scc1['udp_src_port'] = 53
    expected_scc1['udp_src_port_max'] = 53
    expected_scc1['udp_dst_port'] = 53
    expected_scc1['udp_dst_port_max'] = 53
    expected_scc1['udp_src_count'] = 1
    expected_scc1['udp_dst_count'] = 1
    expected_scc1['ip_src_addr'] = '110.0.0.1'
    expected_scc1['ip_src_addr_max'] = '110.0.0.1'
    expected_scc1['ip_src_count'] = 1
    expected_scc1['ip_dst_addr'] = '120.0.0.16'
    expected_scc1['ip_dst_addr_max'] = '120.0.0.32'
    expected_scc1['ip_dst_count'] = 17
    expected_cfg.append(expected_scc1)

    # chain 2
    expected_scc2 = dict(expected)
    expected_scc2['udp_src_port'] = 53
    expected_scc2['udp_src_port_max'] = 53
    expected_scc2['udp_dst_port'] = 53
    expected_scc2['udp_dst_port_max'] = 53
    expected_scc2['udp_src_count'] = 1
    expected_scc2['udp_dst_count'] = 1
    expected_scc2['ip_src_addr'] = '110.0.0.2'
    expected_scc2['ip_src_addr_max'] = '110.0.0.2'
    expected_scc2['ip_src_count'] = 1
    expected_scc2['ip_dst_addr'] = '120.0.0.33'
    expected_scc2['ip_dst_addr_max'] = '120.0.0.49'
    expected_scc2['ip_dst_count'] = 17
    expected_cfg.append(expected_scc2)

    _check_device_udp_flow_config(param, expected_cfg)
    assert "Current values of ip_addrs_step and/or udp_port_step properties" not in caplog.text


def test_device_udp_flow_config_doc_example2(caplog):
    caplog.clear()
    caplog.set_level(logging.INFO)
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    # Multiflow unitary test corresponding to second example in documentation
    param['scc'] = 3
    param['udp_src_port'] = 53
    param['udp_dst_port'] = 53
    param['ip_src_static'] = True
    param['ip_addrs_step'] = 'random'
    param['flow_count'] = 100
    param['ip_src_addr'] = '110.0.0.0/8'
    param['ip_dst_addr'] = '120.0.0.0/8'

    expected_cfg = []
    # chain 0
    expected_scc0 = dict(expected)
    expected_scc0['udp_src_port'] = 53
    expected_scc0['udp_src_port_max'] = 53
    expected_scc0['udp_dst_port'] = 53
    expected_scc0['udp_dst_port_max'] = 53
    expected_scc0['udp_src_count'] = 1
    expected_scc0['udp_dst_count'] = 1
    expected_scc0['ip_src_addr'] = '110.0.0.0'
    expected_scc0['ip_src_addr_max'] = '110.0.0.0'
    expected_scc0['ip_src_count'] = 1
    expected_scc0['ip_dst_addr'] = '120.0.0.0'
    expected_scc0['ip_dst_addr_max'] = '120.0.0.15'
    expected_scc0['ip_dst_count'] = 16
    expected_cfg.append(expected_scc0)

    # chain 1
    expected_scc1 = dict(expected)
    expected_scc1['udp_src_port'] = 53
    expected_scc1['udp_src_port_max'] = 53
    expected_scc1['udp_dst_port'] = 53
    expected_scc1['udp_dst_port_max'] = 53
    expected_scc1['udp_src_count'] = 1
    expected_scc1['udp_dst_count'] = 1
    expected_scc1['ip_src_addr'] = '110.0.0.1'
    expected_scc1['ip_src_addr_max'] = '110.0.0.1'
    expected_scc1['ip_src_count'] = 1
    expected_scc1['ip_dst_addr'] = '120.0.0.16'
    expected_scc1['ip_dst_addr_max'] = '120.0.0.32'
    expected_scc1['ip_dst_count'] = 17
    expected_cfg.append(expected_scc1)

    # chain 2
    expected_scc2 = dict(expected)
    expected_scc2['udp_src_port'] = 53
    expected_scc2['udp_src_port_max'] = 53
    expected_scc2['udp_dst_port'] = 53
    expected_scc2['udp_dst_port_max'] = 53
    expected_scc2['udp_src_count'] = 1
    expected_scc2['udp_dst_count'] = 1
    expected_scc2['ip_src_addr'] = '110.0.0.2'
    expected_scc2['ip_src_addr_max'] = '110.0.0.2'
    expected_scc2['ip_src_count'] = 1
    expected_scc2['ip_dst_addr'] = '120.0.0.33'
    expected_scc2['ip_dst_addr_max'] = '120.0.0.49'
    expected_scc2['ip_dst_count'] = 17
    expected_cfg.append(expected_scc2)

    _check_device_udp_flow_config(param, expected_cfg)
    assert "Current values of ip_addrs_step and/or udp_port_step properties" not in caplog.text


def test_device_udp_flow_config_doc_example3(caplog):
    caplog.clear()
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    # Multiflow unitary test corresponding to third example in documentation
    param['scc'] = 3
    param['udp_src_port'] = 53
    param['udp_dst_port'] = 53
    param['ip_src_static'] = True
    param['ip_addrs_step'] = '0.0.0.5'
    param['flow_count'] = 100
    param['ip_src_addr'] = '110.0.0.0/8'
    param['ip_dst_addr'] = '120.0.0.0/8'

    expected_cfg = []
    # chain 0
    expected_scc0 = dict(expected)
    expected_scc0['udp_src_port'] = 53
    expected_scc0['udp_src_port_max'] = 53
    expected_scc0['udp_dst_port'] = 53
    expected_scc0['udp_dst_port_max'] = 53
    expected_scc0['udp_src_count'] = 1
    expected_scc0['udp_dst_count'] = 1
    expected_scc0['ip_src_addr'] = '110.0.0.0'
    expected_scc0['ip_src_addr_max'] = '110.0.0.0'
    expected_scc0['ip_src_count'] = 1
    expected_scc0['ip_dst_addr'] = '120.0.0.0'
    expected_scc0['ip_dst_addr_max'] = '120.0.0.75'
    expected_scc0['ip_dst_count'] = 16
    expected_cfg.append(expected_scc0)

    # chain 1
    expected_scc1 = dict(expected)
    expected_scc1['udp_src_port'] = 53
    expected_scc1['udp_src_port_max'] = 53
    expected_scc1['udp_dst_port'] = 53
    expected_scc1['udp_dst_port_max'] = 53
    expected_scc1['udp_src_count'] = 1
    expected_scc1['udp_dst_count'] = 1
    expected_scc1['ip_src_addr'] = '110.0.0.5'
    expected_scc1['ip_src_addr_max'] = '110.0.0.5'
    expected_scc1['ip_src_count'] = 1
    expected_scc1['ip_dst_addr'] = '120.0.0.80'
    expected_scc1['ip_dst_addr_max'] = '120.0.0.160'
    expected_scc1['ip_dst_count'] = 17
    expected_cfg.append(expected_scc1)

    # chain 2
    expected_scc2 = dict(expected)
    expected_scc2['udp_src_port'] = 53
    expected_scc2['udp_src_port_max'] = 53
    expected_scc2['udp_dst_port'] = 53
    expected_scc2['udp_dst_port_max'] = 53
    expected_scc2['udp_src_count'] = 1
    expected_scc2['udp_dst_count'] = 1
    expected_scc2['ip_src_addr'] = '110.0.0.10'
    expected_scc2['ip_src_addr_max'] = '110.0.0.10'
    expected_scc2['ip_src_count'] = 1
    expected_scc2['ip_dst_addr'] = '120.0.0.165'
    expected_scc2['ip_dst_addr_max'] = '120.0.0.245'
    expected_scc2['ip_dst_count'] = 17
    expected_cfg.append(expected_scc2)

    caplog.set_level(logging.INFO)
    _check_device_udp_flow_config(param, expected_cfg)
    assert "Current values of ip_addrs_step and/or udp_port_step properties" not in caplog.text


def test_device_udp_flow_config_doc_example4(caplog):
    caplog.clear()
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    # Multiflow unitary test corresponding to fourth example in documentation
    param['scc'] = 3
    param['udp_src_port'] = [10, 14]
    param['udp_dst_port'] = [20, 25]
    param['ip_src_static'] = True
    param['ip_addrs_step'] = '0.0.0.1'
    param['udp_port_step'] = 'random'
    param['flow_count'] = 100
    param['ip_src_addr'] = '110.0.0.0/29'
    param['ip_dst_addr'] = '120.0.0.0/30'

    expected_cfg = []
    # chain 0
    expected_scc0 = dict(expected)
    expected_scc0['udp_src_port'] = 10
    expected_scc0['udp_src_port_max'] = 14
    expected_scc0['udp_dst_port'] = 20
    expected_scc0['udp_dst_port_max'] = 25
    expected_scc0['udp_src_count'] = 5
    expected_scc0['udp_dst_count'] = 6
    expected_scc0['ip_src_addr'] = '110.0.0.0'
    expected_scc0['ip_src_addr_max'] = '110.0.0.0'
    expected_scc0['ip_src_count'] = 1
    expected_scc0['ip_dst_addr'] = '120.0.0.0'
    expected_scc0['ip_dst_addr_max'] = '120.0.0.0'
    expected_scc0['ip_dst_count'] = 1
    expected_cfg.append(expected_scc0)

    # chain 1
    expected_scc1 = dict(expected)
    expected_scc1['udp_src_port'] = 10
    expected_scc1['udp_src_port_max'] = 14
    expected_scc1['udp_dst_port'] = 20
    expected_scc1['udp_dst_port_max'] = 25
    expected_scc1['udp_src_count'] = 5
    expected_scc1['udp_dst_count'] = 6
    expected_scc1['ip_src_addr'] = '110.0.0.1'
    expected_scc1['ip_src_addr_max'] = '110.0.0.1'
    expected_scc1['ip_src_count'] = 1
    expected_scc1['ip_dst_addr'] = '120.0.0.1'
    expected_scc1['ip_dst_addr_max'] = '120.0.0.1'
    expected_scc1['ip_dst_count'] = 1
    expected_cfg.append(expected_scc1)

    # chain 2
    expected_scc2 = dict(expected)
    expected_scc2['udp_src_port'] = 10
    expected_scc2['udp_src_port_max'] = 14
    expected_scc2['udp_dst_port'] = 20
    expected_scc2['udp_dst_port_max'] = 25
    expected_scc2['udp_src_count'] = 5
    expected_scc2['udp_dst_count'] = 6
    expected_scc2['ip_src_addr'] = '110.0.0.2'
    expected_scc2['ip_src_addr_max'] = '110.0.0.2'
    expected_scc2['ip_src_count'] = 1
    expected_scc2['ip_dst_addr'] = '120.0.0.2'
    expected_scc2['ip_dst_addr_max'] = '120.0.0.2'
    expected_scc2['ip_dst_count'] = 1
    expected_cfg.append(expected_scc2)
    caplog.set_level(logging.INFO)
    _check_device_udp_flow_config(param, expected_cfg)
    assert "Current values of ip_addrs_step and/or udp_port_step properties" in caplog.text
    assert "udp_port_step='1' (previous value: udp_port_step='random'" in caplog.text


def test_device_udp_flow_config_no_random_steps_overridden(caplog):
    caplog.clear()
    param = __get_udp_params()
    expected = __get_udp_expected_list()

    # Multiflow unitary test corresponding to fifth example in documentation
    param['scc'] = 3
    param['udp_src_port'] = [10, 14]
    param['udp_dst_port'] = [20, 25]
    param['ip_src_static'] = True
    param['ip_addrs_step'] = 'random'
    param['udp_port_step'] = 'random'
    param['flow_count'] = 100
    param['ip_src_addr'] = '110.0.0.0/29'
    param['ip_dst_addr'] = '120.0.0.0/30'

    expected_cfg = []
    # chain 0
    expected_scc0 = dict(expected)
    expected_scc0['udp_src_port'] = 10
    expected_scc0['udp_src_port_max'] = 14
    expected_scc0['udp_dst_port'] = 20
    expected_scc0['udp_dst_port_max'] = 25
    expected_scc0['udp_src_count'] = 5
    expected_scc0['udp_dst_count'] = 6
    expected_scc0['ip_src_addr'] = '110.0.0.0'
    expected_scc0['ip_src_addr_max'] = '110.0.0.0'
    expected_scc0['ip_src_count'] = 1
    expected_scc0['ip_dst_addr'] = '120.0.0.0'
    expected_scc0['ip_dst_addr_max'] = '120.0.0.0'
    expected_scc0['ip_dst_count'] = 1
    expected_cfg.append(expected_scc0)

    # chain 1
    expected_scc1 = dict(expected)
    expected_scc1['udp_src_port'] = 10
    expected_scc1['udp_src_port_max'] = 14
    expected_scc1['udp_dst_port'] = 20
    expected_scc1['udp_dst_port_max'] = 25
    expected_scc1['udp_src_count'] = 5
    expected_scc1['udp_dst_count'] = 6
    expected_scc1['ip_src_addr'] = '110.0.0.1'
    expected_scc1['ip_src_addr_max'] = '110.0.0.1'
    expected_scc1['ip_src_count'] = 1
    expected_scc1['ip_dst_addr'] = '120.0.0.1'
    expected_scc1['ip_dst_addr_max'] = '120.0.0.1'
    expected_scc1['ip_dst_count'] = 1
    expected_cfg.append(expected_scc1)

    # chain 2
    expected_scc2 = dict(expected)
    expected_scc2['udp_src_port'] = 10
    expected_scc2['udp_src_port_max'] = 14
    expected_scc2['udp_dst_port'] = 20
    expected_scc2['udp_dst_port_max'] = 25
    expected_scc2['udp_src_count'] = 5
    expected_scc2['udp_dst_count'] = 6
    expected_scc2['ip_src_addr'] = '110.0.0.2'
    expected_scc2['ip_src_addr_max'] = '110.0.0.2'
    expected_scc2['ip_src_count'] = 1
    expected_scc2['ip_dst_addr'] = '120.0.0.2'
    expected_scc2['ip_dst_addr_max'] = '120.0.0.2'
    expected_scc2['ip_dst_count'] = 1
    expected_cfg.append(expected_scc2)
    caplog.set_level(logging.INFO)
    _check_device_udp_flow_config(param, expected_cfg)
    assert "Current values of ip_addrs_step and/or udp_port_step properties" not in caplog.text


def test_config():
    refcfg = {1: 100, 2: {21: 100, 22: 200}, 3: None}
    res1 = {1: 10, 2: {21: 100, 22: 200}, 3: None}
    res2 = {1: 100, 2: {21: 1000, 22: 200}, 3: None}
    res3 = {1: 100, 2: {21: 100, 22: 200}, 3: "abc"}
    assert config_loads("{}", refcfg) == refcfg
    assert config_loads("{1: 10}", refcfg) == res1
    assert config_loads("{2: {21: 1000}}", refcfg) == res2
    assert config_loads('{3: "abc"}', refcfg) == res3

    # correctly fails
    # pairs of input string and expected subset (None if identical)
    fail_pairs = [
        ["{4: 0}", None],
        ["{2: {21: 100, 30: 50}}", "{2: {30: 50}}"],
        ["{2: {0: 1, 1: 2}, 5: 5}", None],
        ["{1: 'abc', 2: {21: 0}}", "{1: 'abc'}"],
        ["{2: 100}", None]
    ]
    for fail_pair in fail_pairs:
        with pytest.raises(Exception) as e_info:
            config_loads(fail_pair[0], refcfg)
        expected = fail_pair[1]
        if expected is None:
            expected = fail_pair[0]
        assert expected in str(e_info)

    # whitelist keys
    flavor = {'flavor': {'vcpus': 2, 'ram': 8192, 'disk': 0,
                         'extra_specs': {'hw:cpu_policy': 'dedicated'}}}
    new_flavor = {'flavor': {'vcpus': 2, 'ram': 8192, 'disk': 0,
                             'extra_specs': {'hw:cpu_policy': 'dedicated', 'hw:numa_nodes': 2}}}
    assert config_loads("{'flavor': {'extra_specs': {'hw:numa_nodes': 2}}}", flavor,
                        whitelist_keys=['alpha', 'extra_specs']) == new_flavor


def test_fluentd():
    logger = logging.getLogger('fluent-logger')

    class FluentdConfig(dict):
        def __getattr__(self, attr):
            return self.get(attr)

    fluentd_configs = [
        FluentdConfig({
            'logging_tag': 'nfvbench',
            'result_tag': 'resultnfvbench',
            'ip': '127.0.0.1',
            'port': 7081
        }),
        FluentdConfig({
            'logging_tag': 'nfvbench',
            'result_tag': 'resultnfvbench',
            'ip': '127.0.0.1',
            'port': 24224
        }),
        FluentdConfig({
            'logging_tag': None,
            'result_tag': 'resultnfvbench',
            'ip': '127.0.0.1',
            'port': 7082
        }),
        FluentdConfig({
            'logging_tag': 'nfvbench',
            'result_tag': None,
            'ip': '127.0.0.1',
            'port': 7083
        })
    ]

    handler = FluentLogHandler(fluentd_configs=fluentd_configs)
    logger.addHandler(handler)
    logger.setLevel(logging.INFO)
    logger.info('test')
    logger.warning('test %d', 100)

    try:
        raise Exception("test")
    except Exception:
        logger.exception("got exception")

def assert_ndr_pdr(stats, ndr, ndr_dr, pdr, pdr_dr):
    assert stats['ndr']['rate_percent'] == ndr
    assert stats['ndr']['stats']['overall']['drop_percentage'] == ndr_dr
    assert_equivalence(pdr, stats['pdr']['rate_percent'])
    assert_equivalence(pdr_dr, stats['pdr']['stats']['overall']['drop_percentage'])

def _get_dummy_tg_config(chain_type, rate, scc=1, fc=10, step_ip='0.0.0.1',
                         ip0='10.0.0.0/8', ip1='20.0.0.0/8',
                         step_udp='1', src_udp=None, dst_udp=None, ip_src_static=True):
    return AttrDict({
        'traffic_generator': {'host_name': 'nfvbench_tg',
                              'default_profile': 'dummy',
                              'generator_profile': [{'name': 'dummy',
                                                     'tool': 'dummy',
                                                     'ip': '127.0.0.1',
                                                     'intf_speed': '10Gbps',
                                                     'interfaces': [{'port': 0, 'pci': '0.0'},
                                                                    {'port': 1, 'pci': '0.0'}]}],
                              'ip_addrs_step': step_ip,
                              'ip_addrs': [ip0, ip1],
                              'ip_src_static': ip_src_static,
                              'tg_gateway_ip_addrs': ['1.1.0.100', '2.2.0.100'],
                              'tg_gateway_ip_addrs_step': step_ip,
                              'gateway_ip_addrs': ['1.1.0.2', '2.2.0.2'],
                              'gateway_ip_addrs_step': step_ip,
                              'mac_addrs_left': None,
                              'mac_addrs_right': None,
                              'udp_src_port': src_udp,
                              'udp_dst_port': dst_udp,
                              'udp_port_step': step_udp},
        'traffic': {'profile': 'profile_64',
                    'bidirectional': True},
        'traffic_profile': [{'name': 'profile_64', 'l2frame_size': ['64']}],
        'generator_profile': None,
        'service_chain': chain_type,
        'service_chain_count': scc,
        'flow_count': fc,
        'vlan_tagging': True,
        'no_arp': False,
        'duration_sec': 1,
        'interval_sec': 1,
        'pause_sec': 1,
        'rate': rate,
        'check_traffic_time_sec': 200,
        'generic_poll_sec': 2,
        'measurement': {'NDR': 0.001, 'PDR': 0.1, 'load_epsilon': 0.1},
        'l2_loopback': False,
        'cores': None,
        'mbuf_factor': None,
        'disable_hdrh': None,
        'mbuf_64': None,
        'service_mode': False,
        'no_flow_stats': False,
        'no_latency_stats': False,
        'no_latency_streams': False,
        'intf_speed': '10Gbps'

    })

def _get_traffic_client(user_info=None):
    config = _get_dummy_tg_config('PVP', 'ndr_pdr')
    config['vxlan'] = False
    config['mpls'] = False
    config['ndr_run'] = True
    config['pdr_run'] = True
    config['generator_profile'] = 'dummy'
    config['single_run'] = False
    if user_info:
        config['user_info'] = user_info
    traffic_client = TrafficClient(config)
    traffic_client.start_traffic_generator()
    traffic_client.set_traffic('64', True)
    return traffic_client

@patch.object(TrafficClient, 'skip_sleep', lambda x: True)
def test_ndr_at_lr():
    """Test NDR at line rate."""
    traffic_client = _get_traffic_client()
    tg = traffic_client.gen
    # this is a perfect sut with no loss at LR
    tg.set_response_curve(lr_dr=0, ndr=100, max_actual_tx=100, max_11_tx=100)
    # tx packets should be line rate for 64B and no drops...
    assert tg.get_tx_pps_dropped_pps(100) == (LR_64B_PPS, 0)
    # NDR and PDR should be at 100%
    # traffic_client.ensure_end_to_end()
    results = traffic_client.get_ndr_and_pdr()
    assert_ndr_pdr(results, 200.0, 0.0, 200.0, 0.0)

@patch.object(TrafficClient, 'skip_sleep', lambda x: True)
def test_ndr_at_50():
    """Test NDR at 50% line rate.

    This is a sut with an NDR of 50% and linear drop rate after NDR up to 20% drops at LR
    (meaning that if you send 100% TX, you will only receive 80% RX)
    the tg requested TX/actual TX ratio is up to 50%, after 50%
    is linear up 80% actuak TX when requesting 100%
    """
    traffic_client = _get_traffic_client()
    tg = traffic_client.gen

    tg.set_response_curve(lr_dr=20, ndr=50, max_actual_tx=80, max_11_tx=50)
    # tx packets should be half line rate for 64B and no drops...
    assert tg.get_tx_pps_dropped_pps(50) == (LR_64B_PPS / 2, 0)
    # at 100% TX requested, actual TX is 80% where the drop rate is 3/5 of 20% of the actual TX
    assert tg.get_tx_pps_dropped_pps(100) == (int(LR_64B_PPS * 0.8),
                                              int(LR_64B_PPS * 0.8 * 0.6 * 0.2))
    results = traffic_client.get_ndr_and_pdr()
    assert_ndr_pdr(results, 100.0, 0.0, 100.781, 0.09374)

@patch.object(TrafficClient, 'skip_sleep', lambda x: True)
def test_ndr_pdr_low_cpu():
    """Test NDR and PDR with too low cpu.

    This test is for the case where the TG is underpowered and cannot send fast enough for the NDR
    true NDR=40%, actual TX at 50% = 30%, actual measured DR is 0%
    The ndr/pdr should bail out with a warning and a best effort measured NDR of 30%
    """
    traffic_client = _get_traffic_client()
    tg = traffic_client.gen
    tg.set_response_curve(lr_dr=50, ndr=40, max_actual_tx=60, max_11_tx=0)
    # tx packets should be 30% at requested half line rate for 64B and no drops...
    assert tg.get_tx_pps_dropped_pps(50) == (int(LR_64B_PPS * 0.3), 0)
    results = traffic_client.get_ndr_and_pdr()
    assert results
    # import pprint
    # pp = pprint.PrettyPrinter(indent=4)
    # pp.pprint(results)

@patch.object(TrafficClient, 'skip_sleep', lambda x: True)
def test_ndr_at_lr_sdn_gw_encapsulation():
    """Test NDR at line rate with traffic gen outside SUT and connected via SDN GW."""
    user_info = {'extra_encapsulation_bytes': 28}
    traffic_client = _get_traffic_client(user_info)
    tg = traffic_client.gen
    # this is a perfect sut with no loss at LR
    tg.set_response_curve(lr_dr=0, ndr=100, max_actual_tx=100, max_11_tx=100)
    # tx packets should be line rate for 64B and no drops...
    assert tg.get_tx_pps_dropped_pps(100) == (LR_64B_PPS, 0)
    # NDR and PDR should be at 100%
    # traffic_client.ensure_end_to_end()
    results = traffic_client.get_ndr_and_pdr()
    assert results['ndr']['stats']['theoretical_tx_rate_bps'] == 15000000000.0
    assert_ndr_pdr(results, 200.0, 0.0, 200.0, 0.0)

@patch.object(TrafficClient, 'skip_sleep', lambda x: True)
def test_no_openstack():
    """Test nfvbench using main."""
    config = _get_dummy_tg_config('EXT', '1000pps')
    config.openrc_file = None
    config.vlans = [[100], [200]]
    config['traffic_generator']['mac_addrs_left'] = ['00:00:00:00:00:00']
    config['traffic_generator']['mac_addrs_right'] = ['00:00:00:00:01:00']
    del config['generator_profile']
    old_argv = sys.argv
    sys.argv = [old_argv[0], '-c', json.dumps(config)]
    nfvbench.nfvbench.main()
    sys.argv = old_argv