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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 OpenStack Foundation
# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
#
# 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.
# Copyright (C) 2013 Association of Universities for Research in Astronomy
# (AURA)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# 3. The name of AURA and its representatives may not be used to
# endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY AURA ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL AURA BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
"""Common utilities used in testing"""
import os
import shutil
import subprocess
import sys
import fixtures
import testresources
import testtools
from pbr import packaging
class DiveDir(fixtures.Fixture):
"""Dive into given directory and return back on cleanup.
:ivar path: The target directory.
"""
def __init__(self, path):
self.path = path
def setUp(self):
super(DiveDir, self).setUp()
self.addCleanup(os.chdir, os.getcwd())
os.chdir(self.path)
class BaseTestCase(testtools.TestCase, testresources.ResourcedTestCase):
def setUp(self):
super(BaseTestCase, self).setUp()
test_timeout = os.environ.get('OS_TEST_TIMEOUT', 30)
try:
test_timeout = int(test_timeout)
except ValueError:
# If timeout value is invalid, fail hard.
print("OS_TEST_TIMEOUT set to invalid value"
" defaulting to no timeout")
test_timeout = 0
if test_timeout > 0:
self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
if os.environ.get('OS_STDOUT_CAPTURE') in packaging.TRUE_VALUES:
stdout = self.useFixture(fixtures.StringStream('stdout')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
if os.environ.get('OS_STDERR_CAPTURE') in packaging.TRUE_VALUES:
stderr = self.useFixture(fixtures.StringStream('stderr')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
self.log_fixture = self.useFixture(
fixtures.FakeLogger('pbr'))
self.useFixture(fixtures.NestedTempfile())
self.useFixture(fixtures.FakeLogger())
self.useFixture(fixtures.EnvironmentVariable('PBR_VERSION', '0.0'))
self.temp_dir = self.useFixture(fixtures.TempDir()).path
self.package_dir = os.path.join(self.temp_dir, 'testpackage')
shutil.copytree(os.path.join(os.path.dirname(__file__), 'testpackage'),
self.package_dir)
self.addCleanup(os.chdir, os.getcwd())
os.chdir(self.package_dir)
self.addCleanup(self._discard_testpackage)
def _discard_testpackage(self):
# Remove pbr.testpackage from sys.modules so that it can be freshly
# re-imported by the next test
for k in list(sys.modules):
if (k == 'pbr_testpackage' or
k.startswith('pbr_testpackage.')):
del sys.modules[k]
def run_setup(self, *args):
return self._run_cmd(sys.executable, ('setup.py',) + args)
def _run_cmd(self, cmd, args=[]):
"""Run a command in the root of the test working copy.
Runs a command, with the given argument list, in the root of the test
working copy--returns the stdout and stderr streams and the exit code
from the subprocess.
"""
return _run_cmd([cmd] + list(args), cwd=self.package_dir)
def _run_cmd(args, cwd):
"""Run the command args in cwd.
:param args: The command to run e.g. ['git', 'status']
:param cwd: The directory to run the comamnd in.
:return: ((stdout, stderr), returncode)
"""
p = subprocess.Popen(
args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=cwd)
streams = tuple(s.decode('latin1').strip() for s in p.communicate())
for content in streams:
print(content)
return (streams) + (p.returncode,)
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