104 lines
4.3 KiB
Python
104 lines
4.3 KiB
Python
# Copyright (c) 2015 IBM Corp.
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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 hashlib
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import mock
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from neutron.plugins.common import utils
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from neutron.tests import base
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LONG_NAME1 = "A_REALLY_LONG_INTERFACE_NAME1"
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LONG_NAME2 = "A_REALLY_LONG_INTERFACE_NAME2"
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SHORT_NAME = "SHORT"
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MOCKED_HASH = "mockedhash"
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class MockSHA(object):
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def hexdigest(self):
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return MOCKED_HASH
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class TestUtils(base.BaseTestCase):
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@mock.patch.object(hashlib, 'sha1', return_value=MockSHA())
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def test_get_interface_name(self, mock_sha1):
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prefix = "pre-"
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postfix = ".1111"
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if_default_long = utils.get_interface_name(LONG_NAME1)
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if_default_short = utils.get_interface_name(SHORT_NAME)
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if_prefix_long = utils.get_interface_name(LONG_NAME1, prefix=prefix)
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if_prefix_short = utils.get_interface_name(SHORT_NAME, prefix=prefix)
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if_postfix_long = utils.get_interface_name(LONG_NAME1, postfix=postfix)
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if_postfix_short = utils.get_interface_name(SHORT_NAME,
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postfix=postfix)
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if_prefix_postfix_long = utils.get_interface_name(LONG_NAME1,
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prefix=prefix,
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postfix=postfix)
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if_prefix_postfix_short = utils.get_interface_name(SHORT_NAME,
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prefix=prefix,
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postfix=postfix)
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# Each combination is a tuple of the following values:
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# the calculated name, the expected name"
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combinations = [(if_default_long, "A_REALLY_mocked"),
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(if_default_short, "SHORT"),
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(if_prefix_long, "pre-A_REAmocked"),
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(if_prefix_short, "pre-SHORT"),
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(if_postfix_long, "A_REmocked.1111"),
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(if_postfix_short, "SHORT.1111"),
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(if_prefix_postfix_long, "pre-mocked.1111"),
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(if_prefix_postfix_short, "pre-SHORT.1111")]
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for if_new_name, if_expected_new_name in combinations:
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self.assertEqual(if_new_name, if_expected_new_name)
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def test_get_interface_uniqueness(self):
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prefix = "prefix-"
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if_prefix1 = utils.get_interface_name(LONG_NAME1, prefix=prefix)
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if_prefix2 = utils.get_interface_name(LONG_NAME2, prefix=prefix)
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self.assertNotEqual(if_prefix1, if_prefix2)
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def test_get_interface_long_post_and_prefix(self):
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"""Prefix and postfix alone overcome the max character limit."""
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long_prefix = "long_pre"
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long_postfix = "long_pos"
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much_too_long_prefix = "much_too_long_prefix"
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much_too_long_postfix = "much_too_long_postfix"
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self.assertEqual("long_preSHORT", utils.get_interface_name(SHORT_NAME,
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prefix=long_prefix))
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self.assertEqual("SHORTlong_pos", utils.get_interface_name(SHORT_NAME,
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postfix=long_postfix))
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self.assertRaises(ValueError, utils.get_interface_name, SHORT_NAME,
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prefix=long_prefix, postfix=long_postfix)
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self.assertRaises(ValueError, utils.get_interface_name, SHORT_NAME,
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prefix=much_too_long_prefix)
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self.assertRaises(ValueError, utils.get_interface_name, SHORT_NAME,
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postfix=much_too_long_postfix)
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@mock.patch.object(hashlib, 'sha1', return_value=MockSHA())
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def test_get_interface_max_len(self, mock_sha1):
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self.assertTrue(len(utils.get_interface_name(LONG_NAME1)) == 15)
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self.assertTrue(len(utils.get_interface_name(LONG_NAME1, max_len=10))
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== 10)
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