# Copyright (c) 2013 Hewlett-Packard Development Company, L.P. # All Rights Reserved. # # 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. """Common utilities used in testing""" import logging import os import tempfile import fixtures import testtools _TRUE_VALUES = ('True', 'true', '1', 'yes') _LOG_FORMAT = "%(levelname)8s [%(name)s] %(message)s" class BaseTestCase(testtools.TestCase): def setUp(self): super(BaseTestCase, self).setUp() self._set_timeout() self._fake_output() self._fake_logs() self.useFixture(fixtures.NestedTempfile()) self.useFixture(fixtures.TempHomeDir()) def _set_timeout(self): test_timeout = os.environ.get('OS_TEST_TIMEOUT', 0) try: test_timeout = int(test_timeout) except ValueError: # If timeout value is invalid do not set a timeout. test_timeout = 0 if test_timeout > 0: self.useFixture(fixtures.Timeout(test_timeout, gentle=True)) def _fake_output(self): if os.environ.get('OS_STDOUT_CAPTURE') in _TRUE_VALUES: stdout = self.useFixture(fixtures.StringStream('stdout')).stream self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout)) if os.environ.get('OS_STDERR_CAPTURE') in _TRUE_VALUES: stderr = self.useFixture(fixtures.StringStream('stderr')).stream self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr)) def _fake_logs(self): if os.environ.get('OS_DEBUG') in _TRUE_VALUES: level = logging.DEBUG else: level = logging.INFO capture_logs = os.environ.get('OS_LOG_CAPTURE') in _TRUE_VALUES if capture_logs: self.useFixture( fixtures.FakeLogger( format=_LOG_FORMAT, level=level, nuke_handlers=capture_logs, ) ) else: logging.basicConfig(format=_LOG_FORMAT, level=level) def create_tempfiles(self, files, ext='.conf'): tempfiles = [] for (basename, contents) in files: if not os.path.isabs(basename): (fd, path) = tempfile.mkstemp(prefix=basename, suffix=ext) else: path = basename + ext fd = os.open(path, os.O_CREAT | os.O_WRONLY) tempfiles.append(path) try: os.write(fd, contents) finally: os.close(fd) return tempfiles