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#!/usr/bin/env python
# Copyright (c) 2016 ZTE Corp and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
"""Define the parent classes of all Functest Features.
Feature is considered as TestCase offered by Third-party. It offers
helpers to run any python method or any bash command.
"""
import logging
import subprocess
import time
import functest.core.testcase as base
from functest.utils.constants import CONST
__author__ = ("Serena Feng <feng.xiaowei@zte.com.cn>, "
"Cedric Ollivier <cedric.ollivier@orange.com>")
class Feature(base.TestCase):
"""Base model for single feature."""
__logger = logging.getLogger(__name__)
def __init__(self, **kwargs):
super(Feature, self).__init__(**kwargs)
self.result_file = "{}/{}.log".format(
CONST.__getattribute__('dir_results'), self.case_name)
try:
module = kwargs['run']['module']
self.logger = logging.getLogger(module)
except KeyError:
self.__logger.warning(
"Cannot get module name %s. Using %s as fallback",
kwargs, self.case_name)
self.logger = logging.getLogger(self.case_name)
handler = logging.StreamHandler()
handler.setLevel(logging.WARN)
self.logger.addHandler(handler)
handler = logging.FileHandler(self.result_file)
handler.setLevel(logging.DEBUG)
self.logger.addHandler(handler)
formatter = logging.Formatter(
'%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
self.logger.addHandler(handler)
def execute(self, **kwargs):
"""Execute the Python method.
The subclasses must override the default implementation which
is false on purpose.
The new implementation must return 0 if success or anything
else if failure.
Args:
kwargs: Arbitrary keyword arguments.
Returns:
-1.
"""
# pylint: disable=unused-argument,no-self-use
return -1
def run(self, **kwargs):
"""Run the feature.
It allows executing any Python method by calling execute().
It sets the following attributes required to push the results
to DB:
* result,
* start_time,
* stop_time.
It doesn't fulfill details when pushing the results to the DB.
Args:
kwargs: Arbitrary keyword arguments.
Returns:
TestCase.EX_OK if execute() returns 0,
TestCase.EX_RUN_ERROR otherwise.
"""
self.start_time = time.time()
exit_code = base.TestCase.EX_RUN_ERROR
self.result = 0
try:
if self.execute(**kwargs) == 0:
exit_code = base.TestCase.EX_OK
self.result = 100
except Exception: # pylint: disable=broad-except
self.__logger.exception("%s FAILED", self.project_name)
self.__logger.info("Test result is stored in '%s'", self.result_file)
self.stop_time = time.time()
return exit_code
class BashFeature(Feature):
"""Class designed to run any bash command."""
__logger = logging.getLogger(__name__)
def execute(self, **kwargs):
"""Execute the cmd passed as arg
Args:
kwargs: Arbitrary keyword arguments.
Returns:
0 if cmd returns 0,
-1 otherwise.
"""
ret = -1
try:
cmd = kwargs["cmd"]
with open(self.result_file, 'w+') as f_stdout:
proc = subprocess.Popen(cmd.split(), stdout=f_stdout,
stderr=subprocess.STDOUT)
ret = proc.wait()
if ret != 0:
self.__logger.error("Execute command: %s failed", cmd)
except KeyError:
self.__logger.error("Please give cmd as arg. kwargs: %s", kwargs)
return ret
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