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# All Rights Reserved.
#
# 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.
"""Tests for Serial Console."""
import socket
import mock
from nova.console import serial
from nova import exception
from nova import test
class SerialTestCase(test.NoDBTestCase):
def setUp(self):
super(SerialTestCase, self).setUp()
serial.ALLOCATED_PORTS = set()
def test_get_port_range(self):
start, stop = serial._get_port_range()
self.assertEqual(10000, start)
self.assertEqual(20000, stop)
def test_get_port_range_customized(self):
self.flags(port_range='30000:40000', group='serial_console')
start, stop = serial._get_port_range()
self.assertEqual(30000, start)
self.assertEqual(40000, stop)
def test_get_port_range_bad_range(self):
self.flags(port_range='40000:30000', group='serial_console')
start, stop = serial._get_port_range()
self.assertEqual(10000, start)
self.assertEqual(20000, stop)
@mock.patch('socket.socket')
def test_verify_port(self, fake_socket):
s = mock.MagicMock()
fake_socket.return_value = s
serial._verify_port('127.0.0.1', 10)
s.bind.assert_called_once_with(('127.0.0.1', 10))
@mock.patch('socket.socket')
def test_verify_port_in_use(self, fake_socket):
s = mock.MagicMock()
s.bind.side_effect = socket.error()
fake_socket.return_value = s
self.assertRaises(
exception.SocketPortInUseException,
serial._verify_port, '127.0.0.1', 10)
s.bind.assert_called_once_with(('127.0.0.1', 10))
@mock.patch('nova.console.serial._verify_port', lambda x, y: None)
def test_acquire_port(self):
start, stop = 15, 20
self.flags(
port_range='%d:%d' % (start, stop),
group='serial_console')
for port in range(start, stop):
self.assertEqual(port, serial.acquire_port('127.0.0.1'))
for port in range(start, stop):
self.assertEqual(port, serial.acquire_port('127.0.0.2'))
self.assertEqual(10, len(serial.ALLOCATED_PORTS))
@mock.patch('nova.console.serial._verify_port')
def test_acquire_port_in_use(self, fake_verify_port):
def port_10000_already_used(host, port):
if port == 10000 and host == '127.0.0.1':
raise exception.SocketPortInUseException(
port=port,
host=host,
error="already in use")
fake_verify_port.side_effect = port_10000_already_used
self.assertEqual(10001, serial.acquire_port('127.0.0.1'))
self.assertEqual(10000, serial.acquire_port('127.0.0.2'))
self.assertNotIn(('127.0.0.1', 10000), serial.ALLOCATED_PORTS)
self.assertIn(('127.0.0.1', 10001), serial.ALLOCATED_PORTS)
self.assertIn(('127.0.0.2', 10000), serial.ALLOCATED_PORTS)
@mock.patch('nova.console.serial._verify_port')
def test_acquire_port_not_ble_to_bind_at_any_port(self, fake_verify_port):
start, stop = 15, 20
self.flags(
port_range='%d:%d' % (start, stop),
group='serial_console')
fake_verify_port.side_effect = (
exception.SocketPortRangeExhaustedException(host='127.0.0.1'))
self.assertRaises(
exception.SocketPortRangeExhaustedException,
serial.acquire_port, '127.0.0.1')
def test_release_port(self):
serial.ALLOCATED_PORTS.add(('127.0.0.1', 100))
serial.ALLOCATED_PORTS.add(('127.0.0.2', 100))
self.assertEqual(2, len(serial.ALLOCATED_PORTS))
serial.release_port('127.0.0.1', 100)
self.assertEqual(1, len(serial.ALLOCATED_PORTS))
serial.release_port('127.0.0.2', 100)
self.assertEqual(0, len(serial.ALLOCATED_PORTS))
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