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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 Xtesting Features.
Feature is considered as TestCase offered by Third-party. It offers
helpers to run any python method or any bash command.
"""
import abc
import logging
import subprocess
import time
import six
from xtesting.core import testcase
__author__ = ("Serena Feng <feng.xiaowei@zte.com.cn>, "
"Cedric Ollivier <cedric.ollivier@orange.com>")
@six.add_metaclass(abc.ABCMeta)
class Feature(testcase.TestCase):
"""Base model for single feature."""
__logger = logging.getLogger(__name__)
@abc.abstractmethod
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.
"""
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 = testcase.TestCase.EX_RUN_ERROR
self.result = 0
try:
if self.execute(**kwargs) == 0:
exit_code = testcase.TestCase.EX_OK
self.result = 100
except Exception: # pylint: disable=broad-except
self.__logger.exception("%s FAILED", self.project_name)
self.stop_time = time.time()
return exit_code
class BashFeature(Feature):
"""Class designed to run any bash command."""
__logger = logging.getLogger(__name__)
def __init__(self, **kwargs):
super(BashFeature, self).__init__(**kwargs)
dir_results = "/var/lib/xtesting/results"
self.result_file = "{}/{}.log".format(dir_results, self.case_name)
def execute(self, **kwargs):
"""Execute the cmd passed as arg
Args:
kwargs: Arbitrary keyword arguments.
Returns:
0 if cmd returns 0,
-1 otherwise.
"""
try:
cmd = kwargs["cmd"]
with open(self.result_file, 'w+') as f_stdout:
subprocess.check_call(
cmd, shell=True, stdout=f_stdout, stderr=subprocess.STDOUT)
return 0
except KeyError:
self.__logger.error("Please give cmd as arg. kwargs: %s", kwargs)
except subprocess.CalledProcessError:
self.__logger.error("Execute command: %s failed", cmd)
return -1
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