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# -*- coding: utf-8 -*-
# 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 sys
from unittest import mock
import testtools
from oslotest import output
class CaptureOutputTest(testtools.TestCase):
@mock.patch('os.environ')
def test_disabled_env(self, mock_env):
mock_env.get.return_value = ''
f = output.CaptureOutput()
f.setUp()
self.assertIsNone(f.stdout)
self.assertIsNone(f.stderr)
self.assertIsNot(sys.stdout, f.stdout)
self.assertIsNot(sys.stderr, f.stderr)
@mock.patch('os.environ')
def test_enabled_env(self, mock_env):
mock_env.get.return_value = 'True'
f = output.CaptureOutput()
f.setUp()
self.assertIsNotNone(f.stdout)
self.assertIsNotNone(f.stderr)
self.assertIs(sys.stdout, f.stdout)
self.assertIs(sys.stderr, f.stderr)
@mock.patch('os.environ')
def test_disabled_explicit(self, mock_env):
mock_env.get.side_effect = AssertionError('should not be called')
f = output.CaptureOutput(do_stdout=False, do_stderr=False)
f.setUp()
self.assertIsNone(f.stdout)
self.assertIsNone(f.stderr)
self.assertIsNot(sys.stdout, f.stdout)
self.assertIsNot(sys.stderr, f.stderr)
@mock.patch('os.environ')
def test_ensabled_explicit(self, mock_env):
mock_env.get.side_effect = AssertionError('should not be called')
f = output.CaptureOutput(do_stdout=True, do_stderr=True)
f.setUp()
self.assertIsNotNone(f.stdout)
self.assertIsNotNone(f.stderr)
self.assertIs(sys.stdout, f.stdout)
self.assertIs(sys.stderr, f.stderr)
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