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65 lines
2.4 KiB
65 lines
2.4 KiB
# Copyright 2014 Cisco Systems, Inc. |
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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 random |
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from neutron.agent.linux import ovs_lib |
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from neutron.agent.linux import utils |
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from neutron.common import constants as n_const |
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from neutron.tests.functional import base as functional_base |
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BR_PREFIX = 'test-br' |
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class BaseLinuxTestCase(functional_base.BaseSudoTestCase): |
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def check_command(self, cmd, error_text, skip_msg, root_helper=None): |
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try: |
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utils.execute(cmd, root_helper=root_helper) |
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except RuntimeError as e: |
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if error_text in str(e) and not self.fail_on_missing_deps: |
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self.skipTest(skip_msg) |
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raise |
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def get_rand_name(self, max_length, prefix='test'): |
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name = prefix + str(random.randint(1, 0x7fffffff)) |
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return name[:max_length] |
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def create_resource(self, name_prefix, creation_func, *args, **kwargs): |
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"""Create a new resource that does not already exist. |
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:param name_prefix: The prefix for a randomly generated name |
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:param creation_func: A function taking the name of the resource |
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to be created as it's first argument. An error is assumed |
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to indicate a name collision. |
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:param *args *kwargs: These will be passed to the create function. |
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""" |
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while True: |
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name = self.get_rand_name(n_const.DEVICE_NAME_MAX_LEN, name_prefix) |
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try: |
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return creation_func(name, *args, **kwargs) |
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except RuntimeError: |
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continue |
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class BaseOVSLinuxTestCase(BaseLinuxTestCase): |
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def setUp(self): |
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super(BaseOVSLinuxTestCase, self).setUp() |
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self.ovs = ovs_lib.BaseOVS(self.root_helper) |
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def create_ovs_bridge(self, br_prefix=BR_PREFIX): |
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br = self.create_resource(br_prefix, self.ovs.add_bridge) |
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self.addCleanup(br.destroy) |
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return br
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