/usr/lib/python2.7/dist-packages/oslotest/modules.py is in python-oslotest 1:3.2.0-0ubuntu1.
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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 | # 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
import fixtures
class DisableModuleFixture(fixtures.Fixture):
"""A fixture to provide support for unloading/disabling modules."""
def __init__(self, module, *args, **kwargs):
super(DisableModuleFixture, self).__init__(*args, **kwargs)
self.module = module
def setUp(self):
"""Ensure ImportError for the specified module."""
super(DisableModuleFixture, self).setUp()
cleared_modules = {}
for name in list(sys.modules.keys()):
if name == self.module or name.startswith(self.module + '.'):
cleared_modules[name] = sys.modules.pop(name)
finder = _NoModuleFinder(self.module)
sys.meta_path.insert(0, finder)
self.addCleanup(sys.meta_path.remove, finder)
self.addCleanup(sys.modules.update, cleared_modules)
class _NoModuleFinder(object):
"""Disallow further imports of 'module'."""
def __init__(self, module):
self.module = module
def find_module(self, fullname, path):
if fullname == self.module or fullname.startswith(self.module + '.'):
raise ImportError
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