Testing OpenStack upgrades
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# Copyright (c) 2019 Red Hat, Inc.
#
# 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.
from __future__ import absolute_import
import typing
import testtools
import tobiko
from tobiko import config
from tobiko.openstack import keystone
from tobiko.openstack import stacks
from tobiko.shell import sh
from tobiko.shell import ssh
CONF = config.CONF
SSH_EXPECTED_SHELL = None
LOCAL_EXPECTED_SHELL = '/bin/sh -c'
class ExecuteTest(testtools.TestCase):
@property
def expected_shell(self) -> typing.Optional[str]:
if ssh.ssh_proxy_client() is None:
return LOCAL_EXPECTED_SHELL
else:
return SSH_EXPECTED_SHELL
def test_succeed(self, command='true', stdin=None, stdout=None,
stderr=None, expect_exit_status=0, **kwargs):
process = self.execute(command=command,
stdin=stdin,
stdout=bool(stdout),
stderr=bool(stderr),
expect_exit_status=expect_exit_status,
**kwargs)
self.assertEqual(self.expected_command(command), process.command)
if stdin:
self.assertEqual(stdin, str(process.stdin))
else:
self.assertIsNone(process.stdin)
if stdout:
self.assertEqual(stdout, str(process.stdout))
else:
self.assertIsNone(process.stdout)
if stderr:
self.assertEqual(stderr, str(process.stderr))
else:
self.assertIsNone(process.stderr)
if expect_exit_status is not None:
self.assertEqual(0, process.exit_status)
def test_succeed_with_command_list(self):
self.test_succeed(['echo', 'something'],
stdout='something\n')
def test_succeed_reading_from_stdout(self):
self.test_succeed('echo something',
stdout='something\n')
def test_succeed_reading_from_stderr(self):
self.test_succeed('echo something >&2',
stderr='something\n')
def test_succeed_writing_to_stdin(self):
self.test_succeed('cat',
stdin='some input\n',
stdout='some input\n')
def test_succeed_with_timeout(self):
self.test_succeed(timeout=30.)
def test_succeed_with_no_exit_status(self):
self.test_succeed(command='false', expect_exit_status=None)
def test_fails(self, command='false', exit_status=None, stdin=None,
stdout=None, stderr=None, expect_exit_status=0,
**kwargs):
ex = self.assertRaises(sh.ShellCommandFailed,
self.execute,
command=command,
expect_exit_status=expect_exit_status,
stdin=stdin,
stdout=bool(stdout),
stderr=bool(stderr),
**kwargs)
self.assertEqual(self.expected_command(command), ex.command)
if stdin:
self.assertEqual(stdin, ex.stdin)
else:
self.assertIsNone(ex.stdin)
if stdout:
self.assertEqual(stdout, ex.stdout)
else:
self.assertIsNone(ex.stdout)
if stderr:
self.assertEqual(stderr, ex.stderr)
else:
self.assertIsNone(ex.stderr)
if exit_status is not None:
self.assertEqual(exit_status, ex.exit_status)
else:
self.assertTrue(ex.exit_status)
def test_fails_getting_exit_status(self):
self.test_fails('exit 15', exit_status=15)
def test_fails_reading_from_stdout(self):
self.test_fails(command='echo something && false',
stdout='something\n')
def test_fails_reading_from_stderr(self):
self.test_fails(command='echo something >&2 && false',
stderr='something\n')
def test_fails_writing_to_stdin(self):
self.test_fails('cat && false',
stdin='some input\n',
stdout='some input\n')
def test_fails_with_check_exit_status(self):
self.test_fails(command='true', expect_exit_status=1, exit_status=0)
def test_timeout_expires(self, command='sleep 10', timeout=5., stdin=None,
stdout=None, stderr=None, **kwargs):
ex = self.assertRaises(sh.ShellTimeoutExpired,
self.execute,
command=command,
timeout=timeout,
stdin=stdin,
stdout=bool(stdout),
stderr=bool(stderr),
**kwargs)
self.assertEqual(self.expected_command(command), ex.command)
if stdin:
self.assertTrue(stdin.startswith(ex.stdin))
else:
self.assertIsNone(ex.stdin)
if stdout:
self.assertTrue(stdout.startswith(ex.stdout))
else:
self.assertIsNone(ex.stdout)
if stderr:
self.assertTrue(stderr.startswith(ex.stderr))
else:
self.assertIsNone(ex.stderr)
self.assertEqual(timeout, ex.timeout)
def execute(self, **kwargs):
return sh.execute(**kwargs)
def expected_command(self, command):
command = sh.shell_command(command)
if self.expected_shell is not None:
command = sh.shell_command(self.expected_shell) + [str(command)]
return str(command)
class LocalExecuteTest(ExecuteTest):
expected_shell = LOCAL_EXPECTED_SHELL
def execute(self, **kwargs):
return sh.local_execute(**kwargs)
@keystone.skip_unless_has_keystone_credentials()
class SSHExecuteTest(ExecuteTest):
expected_shell = SSH_EXPECTED_SHELL
server_stack = tobiko.required_setup_fixture(
stacks.UbuntuMinimalServerStackFixture)
@property
def ssh_client(self):
return self.server_stack.ssh_client
def execute(self, **kwargs):
return sh.ssh_execute(ssh_client=self.ssh_client, **kwargs)
@keystone.skip_unless_has_keystone_credentials()
class CirrosSSHExecuteTest(SSHExecuteTest):
server_stack = tobiko.required_setup_fixture(
stacks.CirrosServerStackFixture)