17686c1f24
The ovsdb tests check the output of "ovsdb-client monitor" before and after some operations. The first line of output is a header row with spaces for column separation. The column widths can vary depending on the data in the columns, so compress multiple spaces to one for testing. Change-Id: I6b4690ea9ef1c1b215411ca2c39b1e65fec2c6c7 Partial-bug: #1336172
110 lines
4.0 KiB
Python
110 lines
4.0 KiB
Python
# Copyright 2013 Red Hat, Inc.
|
|
#
|
|
# 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 in this module will be skipped unless:
|
|
|
|
- ovsdb-client is installed
|
|
|
|
- ovsdb-client can be invoked via password-less sudo
|
|
|
|
- OS_SUDO_TESTING is set to '1' or 'True' in the test execution
|
|
environment
|
|
|
|
|
|
The jenkins gate does not allow direct sudo invocation during test
|
|
runs, but configuring OS_SUDO_TESTING ensures that developers are
|
|
still able to execute tests that require the capability.
|
|
"""
|
|
|
|
import eventlet
|
|
|
|
from neutron.agent.linux import ovsdb_monitor
|
|
from neutron.tests.functional.agent.linux import base as base_agent
|
|
|
|
|
|
class BaseMonitorTest(base_agent.BaseOVSLinuxTestCase):
|
|
|
|
def setUp(self):
|
|
# Emulate using a rootwrap script with sudo
|
|
super(BaseMonitorTest, self).setUp(root_helper='sudo sudo')
|
|
|
|
self._check_test_requirements()
|
|
self.bridge = self.create_ovs_bridge()
|
|
|
|
def _check_test_requirements(self):
|
|
self.check_sudo_enabled()
|
|
self.check_command(['which', 'ovsdb-client'],
|
|
'Exit code: 1', 'ovsdb-client is not installed')
|
|
self.check_command(['sudo', '-n', 'ovsdb-client', 'list-dbs'],
|
|
'Exit code: 1',
|
|
'password-less sudo not granted for ovsdb-client')
|
|
|
|
|
|
class TestOvsdbMonitor(BaseMonitorTest):
|
|
|
|
def setUp(self):
|
|
super(TestOvsdbMonitor, self).setUp()
|
|
|
|
self.monitor = ovsdb_monitor.OvsdbMonitor('Bridge',
|
|
root_helper=self.root_helper)
|
|
self.addCleanup(self.monitor.stop)
|
|
self.monitor.start()
|
|
|
|
def collect_initial_output(self):
|
|
while True:
|
|
output = list(self.monitor.iter_stdout())
|
|
if output:
|
|
# Output[0] is header row with spaces for column separation.
|
|
# The column widths can vary depending on the data in the
|
|
# columns, so compress multiple spaces to one for testing.
|
|
return ' '.join(output[0].split())
|
|
eventlet.sleep(0.01)
|
|
|
|
def test_killed_monitor_respawns(self):
|
|
with self.assert_max_execution_time():
|
|
self.monitor.respawn_interval = 0
|
|
old_pid = self.monitor._process.pid
|
|
output1 = self.collect_initial_output()
|
|
pid = self.monitor._get_pid_to_kill()
|
|
self.monitor._kill_process(pid)
|
|
self.monitor._reset_queues()
|
|
while (self.monitor._process.pid == old_pid):
|
|
eventlet.sleep(0.01)
|
|
output2 = self.collect_initial_output()
|
|
# Initial output should appear twice
|
|
self.assertEqual(output1, output2)
|
|
|
|
|
|
class TestSimpleInterfaceMonitor(BaseMonitorTest):
|
|
|
|
def setUp(self):
|
|
super(TestSimpleInterfaceMonitor, self).setUp()
|
|
|
|
self.monitor = ovsdb_monitor.SimpleInterfaceMonitor(
|
|
root_helper=self.root_helper)
|
|
self.addCleanup(self.monitor.stop)
|
|
self.monitor.start(block=True)
|
|
|
|
def test_has_updates(self):
|
|
self.assertTrue(self.monitor.has_updates,
|
|
'Initial call should always be true')
|
|
self.assertFalse(self.monitor.has_updates,
|
|
'has_updates without port addition should be False')
|
|
self.create_resource('test-port-', self.bridge.add_port)
|
|
with self.assert_max_execution_time():
|
|
# has_updates after port addition should become True
|
|
while not self.monitor.has_updates:
|
|
eventlet.sleep(0.01)
|