/usr/share/pyshared/melange/tests/functional/__init__.py is in python-melange 1:2012.1-3.
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# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# 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.
import os
import subprocess
from melange import tests
from melange.common import config
from melange.db import db_api
from melange.ipv4 import db_based_ip_generator
from melange.mac import db_based_mac_generator
def setup():
options = dict(config_file=tests.test_config_file())
conf = config.Config.load_paste_config("melange", options, None)
db_api.db_reset(conf, db_based_ip_generator, db_based_mac_generator)
def execute(cmd, raise_error=True):
"""Executes a command in a subprocess.
Returns a tuple of (exitcode, out, err), where out is the string output
from stdout and err is the string output from stderr when
executing the command.
:param cmd: Command string to execute
:param raise_error: If returncode is not 0 (success), then
raise a RuntimeError? Default: True)
"""
env = os.environ.copy()
# Make sure that we use the programs in the
# current source directory's bin/ directory.
env['PATH'] = tests.melange_bin_path() + ':' + env['PATH']
process = subprocess.Popen(cmd,
shell=True,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env)
result = process.communicate()
(out, err) = result
exitcode = process.returncode
if process.returncode != 0 and raise_error:
msg = "Command %(cmd)s did not succeed. Returned an exit "\
"code of %(exitcode)d."\
"\n\nSTDOUT: %(out)s"\
"\n\nSTDERR: %(err)s" % locals()
raise RuntimeError(msg)
return exitcode, out, err
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