128 lines
3.1 KiB
Python
128 lines
3.1 KiB
Python
# Copyright (C) 2012- Takafumi Arakaki
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import sys
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import functools
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import io
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try:
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import unittest
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unittest.TestCase.assertIs
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except AttributeError:
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import unittest2 as unittest
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from contextlib import contextmanager
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from ..py3compat import Queue, PY3
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from ..utils import newthread
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@contextmanager
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def mockedattr(object, name, replace):
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"""
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Mock `object.name` attribute using `replace`.
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"""
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original = getattr(object, name)
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try:
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setattr(object, name, replace)
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yield
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finally:
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setattr(object, name, original)
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def logging_to_stdout(logger):
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# it assumes that 0-th hander is the only one stream handler...
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return mockedattr(logger.handlers[0], 'stream', sys.stdout)
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def streamio():
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"""
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Return `io.StringIO` for Python 3, otherwise `io.BytesIO`.
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"""
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if PY3:
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return io.StringIO()
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else:
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return io.BytesIO()
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class CaptureStdIO(object):
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def __enter__(self):
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self._orig_stdin = sys.stdin
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self._orig_stdout = sys.stdout
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self._orig_stderr = sys.stderr
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self.stdin = sys.stdin = streamio()
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self.stdout = sys.stdout = streamio()
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self.stderr = sys.stderr = streamio()
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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sys.stdin = self._orig_stdin
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sys.stdout = self._orig_stdout
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sys.stderr = self._orig_stderr
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def read_stdout(self):
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self.stdout.seek(0)
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return self.stdout.read()
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def read_stderr(self):
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self.stderr.seek(0)
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return self.stderr.read()
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class BaseTestCase(unittest.TestCase):
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TRAVIS = os.getenv('TRAVIS')
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if TRAVIS:
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timeout = 10
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else:
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timeout = 1
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def skip(reason):
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from nose import SkipTest
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def decorator(func):
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@functools.wraps(func)
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def wrapper(*args, **kwds):
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raise SkipTest("Skipping {0} because: {1}"
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.format(func.__name__, reason))
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return wrapper
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return decorator
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def post_mortem_in_thread(traceback):
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"""
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`pdb.post_mortem` that can be used in a daemon thread.
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Put the following in the `except`-block::
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import sys
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from epc.tests.utils import post_mortem_in_thread
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exc_info = sys.exc_info()
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post_mortem_in_thread(exc_info[2])
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"""
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import pdb
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blocker = Queue.Queue()
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thread = newthread(target=blocker.get)
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thread.daemon = False
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thread.start()
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pdb.post_mortem(traceback)
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blocker.put(None)
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