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
|
# Copyright 2015 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.
"""TestCase base class
"""
import csv
import os
import logging
from collections import OrderedDict
import core.component_factory as component_factory
from core.loader import Loader
class TestCase(object):
"""TestCase base class
In this basic form runs RFC2544 throughput test
"""
def __init__(self, cfg, results_dir):
"""Pull out fields from test config
:param cfg: A dictionary of string-value pairs describing the test
configuration. Both the key and values strings use well-known
values.
:param results_dir: Where the csv formatted results are written.
"""
self._logger = logging.getLogger(__name__)
self.name = cfg['Name']
self.desc = cfg.get('Description', 'No description given.')
self._traffic_type = cfg['Traffic Type']
self._deployment = cfg['Deployment']
self._collector = cfg['Collector']
self._bidir = cfg['biDirectional']
self._frame_mod = cfg.get('Frame Modification', None)
if self._frame_mod:
self._frame_mod = self._frame_mod.lower()
self._results_dir = results_dir
self._multistream = cfg.get('MultiStream', 0)
def run(self):
"""Run the test
All setup and teardown through controllers is included.
"""
self._logger.debug(self.name)
self._logger.debug("Controllers:")
loader = Loader()
traffic_ctl = component_factory.create_traffic(
self._traffic_type,
loader.get_trafficgen_class())
vnf_ctl = component_factory.create_vnf(
self._deployment,
loader.get_vnf_class())
vswitch_ctl = component_factory.create_vswitch(
self._deployment,
loader.get_vswitch_class(),
self._bidir)
collector_ctl = component_factory.create_collector(
self._collector,
loader.get_collector_class())
self._logger.debug("Setup:")
collector_ctl.log_cpu_stats()
with vswitch_ctl:
with vnf_ctl:
traffic = {'traffic_type': self._traffic_type,
'bidir': self._bidir,
'multistream': self._multistream}
vswitch = vswitch_ctl.get_vswitch()
if self._frame_mod == "vlan":
flow = {'table':'2', 'priority':'1000', 'metadata':'2',
'actions': ['push_vlan:0x8100', 'goto_table:3']}
vswitch.add_flow('br0', flow)
flow = {'table':'2', 'priority':'1000', 'metadata':'1',
'actions': ['push_vlan:0x8100', 'goto_table:3']}
vswitch.add_flow('br0', flow)
with traffic_ctl:
traffic_ctl.send_traffic(traffic)
self._logger.debug("Traffic Results:")
traffic_ctl.print_results()
self._logger.debug("Collector Results:")
self._logger.debug(collector_ctl.get_results())
output_file = "result_" + self.name + "_" + self._deployment +".csv"
self._write_result_to_file(
traffic_ctl.get_results(),
os.path.join(self._results_dir, output_file))
@staticmethod
def _write_result_to_file(results, output):
"""Write list of dictionaries to a CSV file.
Each element on list will create separate row in output file.
If output file already exists, data will be appended at the end,
otherwise it will be created.
:param results: list of dictionaries.
:param output: path to output file.
"""
with open(output, 'a') as csvfile:
logging.info("Write results to file: " + output)
fieldnames = TestCase._get_unique_keys(results)
writer = csv.DictWriter(csvfile, fieldnames)
if not csvfile.tell(): # file is now empty
writer.writeheader()
for result in results:
writer.writerow(result)
@staticmethod
def _get_unique_keys(list_of_dicts):
"""Gets unique key values as ordered list of strings in given dicts
:param list_of_dicts: list of dictionaries.
:returns: list of unique keys(strings).
"""
result = OrderedDict()
for item in list_of_dicts:
for key in item.keys():
result[key] = ''
return list(result.keys())
|
