/usr/lib/python2.7/dist-packages/oslotest/output.py is in python-oslotest 1:2.3.0-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | # 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 fixtures
_TRUE_VALUES = ('True', 'true', '1', 'yes')
class CaptureOutput(fixtures.Fixture):
"""Optionally capture the output streams.
The behavior is managed through two environment variables. If
``OS_STDOUT_CAPTURE`` is true then stdout is captured and if
``OS_STDERR_CAPTURE`` is true then stderr is captured.
"True" values include ``True``, ``true``, ``1``, and ``yes``.
.. py:attribute:: stdout
The ``stream`` attribute from a :class:`StringStream` instance
replacing stdout.
.. py:attribute:: stderr
The ``stream`` attribute from a :class:`StringStream` instance
replacing stderr.
"""
def __init__(self):
super(CaptureOutput, self).__init__()
self.stdout = None
self.stderr = None
def setUp(self):
super(CaptureOutput, self).setUp()
if os.environ.get('OS_STDOUT_CAPTURE') in _TRUE_VALUES:
self._stdout_fixture = fixtures.StringStream('stdout')
self.stdout = self.useFixture(self._stdout_fixture).stream
self.useFixture(fixtures.MonkeyPatch('sys.stdout', self.stdout))
if os.environ.get('OS_STDERR_CAPTURE') in _TRUE_VALUES:
self._stderr_fixture = fixtures.StringStream('stderr')
self.stderr = self.useFixture(self._stderr_fixture).stream
self.useFixture(fixtures.MonkeyPatch('sys.stderr', self.stderr))
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