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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright (c) 2013 OpenStack Foundation.
#
# 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.
"""
Test vlans alloc/dealloc.
"""
from neutron.db import api as db
from neutron.openstack.common import context
from neutron.plugins.brocade import vlanbm as vlan_bitmap
from neutron.tests import base
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class TestVlanBitmap(base.BaseTestCase):
"""exercise Vlan bitmap ."""
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def setUp(self):
super(TestVlanBitmap, self).setUp()
db.configure_db()
self.addCleanup(db.clear_db)
self.context = context.get_admin_context()
self.context.session = db.get_session()
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def test_vlan(self):
"""test vlan allocation/de-alloc."""
self.vbm_ = vlan_bitmap.VlanBitmap(self.context)
vlan_id = self.vbm_.get_next_vlan(None)
# First vlan is always 2
self.assertEqual(vlan_id, 2)
# next vlan is always 3
vlan_id = self.vbm_.get_next_vlan(None)
self.assertEqual(vlan_id, 3)
# get a specific vlan i.e. 4
vlan_id = self.vbm_.get_next_vlan(4)
self.assertEqual(vlan_id, 4)
# get a specific vlan i.e. 5
vlan_id = self.vbm_.get_next_vlan(5)
self.assertEqual(vlan_id, 5)
# Skip 6
# get a specific vlan i.e. 7
vlan_id = self.vbm_.get_next_vlan(7)
self.assertEqual(vlan_id, 7)
# get a specific vlan i.e. 1900
vlan_id = self.vbm_.get_next_vlan(1900)
self.assertEqual(vlan_id, 1900)
# Release 4 and get next again
self.vbm_.release_vlan(4)
vlan_id = self.vbm_.get_next_vlan(None)
self.assertEqual(vlan_id, 4)