1 # Copyright 2015 Intel Corporation.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
14 """TestCase base class
20 from collections import OrderedDict
22 from core.results.results_constants import ResultsConstants
23 import core.component_factory as component_factory
24 from core.loader import Loader
26 class TestCase(object):
27 """TestCase base class
29 In this basic form runs RFC2544 throughput test
31 def __init__(self, cfg, results_dir):
32 """Pull out fields from test config
34 :param cfg: A dictionary of string-value pairs describing the test
35 configuration. Both the key and values strings use well-known
37 :param results_dir: Where the csv formatted results are written.
39 self._logger = logging.getLogger(__name__)
40 self.name = cfg['Name']
41 self.desc = cfg.get('Description', 'No description given.')
42 self._traffic_type = cfg['Traffic Type']
43 self.deployment = cfg['Deployment']
44 self._collector = cfg['Collector']
45 self._bidir = cfg['biDirectional']
46 self._frame_mod = cfg.get('Frame Modification', None)
48 # check if test requires background load and which generator it uses
49 self._load_cfg = cfg.get('Load', None)
50 if self._load_cfg and 'tool' in self._load_cfg:
51 self._loadgen = self._load_cfg['tool']
53 # background load is not requested, so use dummy implementation
54 self._loadgen = "Dummy"
57 self._frame_mod = self._frame_mod.lower()
58 self._results_dir = results_dir
59 self._multistream = cfg.get('MultiStream', 0)
64 All setup and teardown through controllers is included.
66 self._logger.debug(self.name)
68 self._logger.debug("Controllers:")
70 traffic_ctl = component_factory.create_traffic(
72 loader.get_trafficgen_class())
73 vnf_ctl = component_factory.create_vnf(
75 loader.get_vnf_class())
76 vswitch_ctl = component_factory.create_vswitch(
78 loader.get_vswitch_class(),
80 collector_ctl = component_factory.create_collector(
82 loader.get_collector_class())
83 loadgen = component_factory.create_loadgen(
87 self._logger.debug("Setup:")
88 collector_ctl.log_cpu_stats()
89 with vswitch_ctl, loadgen:
91 traffic = {'traffic_type': self._traffic_type,
93 'multistream': self._multistream}
95 vswitch = vswitch_ctl.get_vswitch()
96 if self._frame_mod == "vlan":
97 flow = {'table':'2', 'priority':'1000', 'metadata':'2',
98 'actions': ['push_vlan:0x8100', 'goto_table:3']}
99 vswitch.add_flow('br0', flow)
100 flow = {'table':'2', 'priority':'1000', 'metadata':'1',
101 'actions': ['push_vlan:0x8100', 'goto_table:3']}
102 vswitch.add_flow('br0', flow)
105 traffic_ctl.send_traffic(traffic)
107 self._logger.debug("Traffic Results:")
108 traffic_ctl.print_results()
110 self._logger.debug("Collector Results:")
111 self._logger.debug(collector_ctl.get_results())
113 output_file = "result_" + self.name + "_" + self.deployment +".csv"
115 TestCase._write_result_to_file(
116 self._append_results(traffic_ctl.get_results()),
117 os.path.join(self._results_dir, output_file))
119 def _append_results(self, results):
121 Method appends mandatory Test Case results to list of dictionaries.
123 :param results: list of dictionaries which contains results from
126 :returns: modified list of dictionaries.
129 item[ResultsConstants.ID] = self.name
130 item[ResultsConstants.DEPLOYMENT] = self.deployment
136 def _write_result_to_file(results, output):
137 """Write list of dictionaries to a CSV file.
139 Each element on list will create separate row in output file.
140 If output file already exists, data will be appended at the end,
141 otherwise it will be created.
143 :param results: list of dictionaries.
144 :param output: path to output file.
146 with open(output, 'a') as csvfile:
148 logging.info("Write results to file: " + output)
149 fieldnames = TestCase._get_unique_keys(results)
151 writer = csv.DictWriter(csvfile, fieldnames)
153 if not csvfile.tell(): # file is now empty
156 for result in results:
157 writer.writerow(result)
161 def _get_unique_keys(list_of_dicts):
162 """Gets unique key values as ordered list of strings in given dicts
164 :param list_of_dicts: list of dictionaries.
166 :returns: list of unique keys(strings).
168 result = OrderedDict()
169 for item in list_of_dicts:
170 for key in item.keys():
173 return list(result.keys())