58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010-2011 OpenStack, LLC
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Common utilities used in testing"""
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import os
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import socket
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import subprocess
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def execute(cmd):
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env = os.environ.copy()
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# Make sure that we use the programs in the
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# current source directory's bin/ directory.
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env['PATH'] = os.path.join(os.getcwd(), 'bin') + ':' + env['PATH']
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process = subprocess.Popen(cmd,
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shell=True,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env)
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result = process.communicate()
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(out, err) = result
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exitcode = process.returncode
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if process.returncode != 0:
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msg = "Command %(cmd)s did not succeed. Returned an exit "\
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"code of %(exitcode)d."\
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"\n\nSTDOUT: %(out)s"\
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"\n\nSTDERR: %(err)s" % locals()
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raise RuntimeError(msg)
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return exitcode, out, err
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def get_unused_port():
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"""
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Returns an unused port on localhost.
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"""
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.bind(('localhost', 0))
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addr, port = s.getsockname()
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s.close()
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return port
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