81 lines
2.4 KiB
Python
81 lines
2.4 KiB
Python
# Copyright (c) 2013 NEC Corporation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import platform
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import random
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import time
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import warnings
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import fixtures
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from neutron_lib.utils import helpers
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class UnorderedList(list):
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"""A list that is equals to any permutation of itself."""
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def __eq__(self, other):
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if not isinstance(other, list):
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return False
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return (sorted(self, key=helpers.safe_sort_key) ==
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sorted(other, key=helpers.safe_sort_key))
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def __neq__(self, other):
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return not self == other
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class WarningsFixture(fixtures.Fixture):
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"""Filters out warnings during test runs."""
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warning_types = (
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DeprecationWarning, PendingDeprecationWarning, ImportWarning
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)
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def _setUp(self):
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self.addCleanup(warnings.resetwarnings)
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for wtype in self.warning_types:
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warnings.filterwarnings(
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"always", category=wtype, module='^neutron_lib\\.')
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def is_bsd():
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"""Return True on BSD-based systems."""
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system = platform.system()
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if system == 'Darwin':
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return True
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if 'bsd' in system.lower():
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return True
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return False
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def get_random_cidr(version=4):
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if version == 4:
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return '10.%d.%d.0/%d' % (random.randint(3, 254),
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random.randint(3, 254),
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24)
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return '2001:db8:%x::/%d' % (random.getrandbits(16), 64)
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def reset_random_seed():
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# reset random seed to make sure other processes extracting values from RNG
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# don't get the same results (useful especially when you then use the
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# random values to allocate system resources from global pool, like ports
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# to listen). Use both current time and pid to make sure no tests started
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# at the same time get the same values from RNG
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seed = time.time() + os.getpid()
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random.seed(seed)
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