56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
#
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# Copyright 2015 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Various utilities used in tests."""
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import contextlib
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import os
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import shutil
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import sys
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import tempfile
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import unittest
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import six
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SkipOnWindows = unittest.skipIf(
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os.name == 'nt', 'Does not run on windows')
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@contextlib.contextmanager
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def TempDir(change_to=False):
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if change_to:
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original_dir = os.getcwd()
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path = tempfile.mkdtemp()
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try:
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if change_to:
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os.chdir(path)
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yield path
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finally:
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if change_to:
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os.chdir(original_dir)
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shutil.rmtree(path)
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@contextlib.contextmanager
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def CaptureOutput():
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new_stdout, new_stderr = six.StringIO(), six.StringIO()
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old_stdout, old_stderr = sys.stdout, sys.stderr
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try:
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sys.stdout, sys.stderr = new_stdout, new_stderr
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yield new_stdout, new_stderr
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finally:
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sys.stdout, sys.stderr = old_stdout, old_stderr
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