Fix pylint warnings in python libraries
[csit.git] / resources / libraries / python / DUTSetup.py
1 # Copyright (c) 2016 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
5 #
6 #     http://www.apache.org/licenses/LICENSE-2.0
7 #
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
13
14 """DUT setup library."""
15
16 from robot.api import logger
17
18 from resources.libraries.python.topology import NodeType
19 from resources.libraries.python.ssh import SSH
20 from resources.libraries.python.constants import Constants
21 from resources.libraries.python.VatExecutor import VatExecutor
22
23
24 class DUTSetup(object):
25     """Contains methods for setting up DUTs."""
26     @staticmethod
27     def start_vpp_service_on_all_duts(nodes):
28         """Start up the VPP service on all nodes."""
29         ssh = SSH()
30         for node in nodes.values():
31             if node['type'] == NodeType.DUT:
32                 ssh.connect(node)
33                 (ret_code, stdout, stderr) = \
34                     ssh.exec_command_sudo('service vpp restart')
35                 if int(ret_code) != 0:
36                     logger.debug('stdout: {0}'.format(stdout))
37                     logger.debug('stderr: {0}'.format(stderr))
38                     raise Exception('DUT {0} failed to start VPP service'.
39                                     format(node['host']))
40
41     @staticmethod
42     def vpp_show_version_verbose(node):
43         """Run "show version verbose" CLI command.
44
45         :param node: Node to run command on.
46         :type node: dict
47         """
48         vat = VatExecutor()
49         vat.execute_script("show_version_verbose.vat", node, json_out=False)
50
51     @staticmethod
52     def vpp_api_trace_save(node):
53         """Run "api trace save" CLI command.
54
55         :param node: Node to run command on.
56         :type node: dict
57         """
58         vat = VatExecutor()
59         vat.execute_script("api_trace_save.vat", node, json_out=False)
60
61     @staticmethod
62     def vpp_api_trace_dump(node):
63         """Run "api trace custom-dump" CLI command.
64
65         :param node: Node to run command on.
66         :type node: dict
67         """
68         vat = VatExecutor()
69         vat.execute_script("api_trace_dump.vat", node, json_out=False)
70
71     @staticmethod
72     def setup_all_duts(nodes):
73         """Prepare all DUTs in given topology for test execution."""
74         for node in nodes.values():
75             if node['type'] == NodeType.DUT:
76                 DUTSetup.setup_dut(node)
77
78     @staticmethod
79     def setup_dut(node):
80         """Run script over SSH to setup the DUT node.
81
82         :param node: DUT node to set up.
83         :type node: dict
84
85         :raises Exception: If the DUT setup fails.
86         """
87         ssh = SSH()
88         ssh.connect(node)
89
90         (ret_code, stdout, stderr) = \
91             ssh.exec_command('sudo -Sn bash {0}/{1}/dut_setup.sh'.format(
92                 Constants.REMOTE_FW_DIR, Constants.RESOURCES_LIB_SH))
93         logger.trace(stdout)
94         logger.trace(stderr)
95         if int(ret_code) != 0:
96             logger.debug('DUT {0} setup script failed: "{1}"'.
97                          format(node['host'], stdout + stderr))
98             raise Exception('DUT test setup script failed at node {}'.
99                             format(node['host']))

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