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Re: [Qemu-devel] [PATCH v4 12/12] iotests: Add test for NBD's blockdev-a


From: Max Reitz
Subject: Re: [Qemu-devel] [PATCH v4 12/12] iotests: Add test for NBD's blockdev-add interface
Date: Sat, 15 Oct 2016 19:19:26 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0

On 13.10.2016 15:26, Kevin Wolf wrote:
> Am 28.09.2016 um 22:56 hat Max Reitz geschrieben:
>> Signed-off-by: Max Reitz <address@hidden>
>> ---
>>  tests/qemu-iotests/147     | 201 
>> +++++++++++++++++++++++++++++++++++++++++++++
>>  tests/qemu-iotests/147.out |   5 ++
>>  tests/qemu-iotests/group   |   1 +
>>  3 files changed, 207 insertions(+)
>>  create mode 100755 tests/qemu-iotests/147
>>  create mode 100644 tests/qemu-iotests/147.out
>>
>> diff --git a/tests/qemu-iotests/147 b/tests/qemu-iotests/147
>> new file mode 100755
>> index 0000000..61e1e6f
>> --- /dev/null
>> +++ b/tests/qemu-iotests/147
>> @@ -0,0 +1,201 @@
>> +#!/usr/bin/env python
>> +#
>> +# Test case for NBD's blockdev-add interface
>> +#
>> +# Copyright (C) 2016 Red Hat, Inc.
>> +#
>> +# This program is free software; you can redistribute it and/or modify
>> +# it under the terms of the GNU General Public License as published by
>> +# the Free Software Foundation; either version 2 of the License, or
>> +# (at your option) any later version.
>> +#
>> +# This program is distributed in the hope that it will be useful,
>> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
>> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> +# GNU General Public License for more details.
>> +#
>> +# You should have received a copy of the GNU General Public License
>> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.
>> +#
>> +
>> +import os
>> +import socket
>> +import stat
>> +import time
>> +import iotests
>> +from iotests import cachemode, imgfmt, qemu_img, qemu_nbd
>> +
>> +NBD_PORT = 10811
>> +
>> +test_img = os.path.join(iotests.test_dir, 'test.img')
>> +
>> +class NBDBlockdevAddBase(iotests.QMPTestCase):
>> +    def blockdev_add_options(self, address, export=None):
>> +        options = { 'node-name': 'nbd-blockdev',
>> +                    'driver': 'raw',
>> +                    'file': {
>> +                        'driver': 'nbd',
>> +                        'address': address
>> +                    } }
>> +        if export is not None:
>> +            options['file']['export'] = export
>> +        return options
>> +
>> +    def client_test(self, filename, address, export=None):
>> +        bao = self.blockdev_add_options(address, export)
>> +        result = self.vm.qmp('blockdev-add', options=bao)
> 
> This needs a rebase (**bao instead of options=bao).
> 
>> +        self.assert_qmp(result, 'return', {})
>> +
>> +        result = self.vm.qmp('query-named-block-nodes')
>> +        for node in result['return']:
>> +            if node['node-name'] == 'nbd-blockdev':
>> +                self.assert_qmp(node, 'image/filename', filename)
>> +                break
>> +
>> +        result = self.vm.qmp('x-blockdev-del', node_name='nbd-blockdev')
>> +        self.assert_qmp(result, 'return', {})
>> +
>> +
>> +class QemuNBD(NBDBlockdevAddBase):
>> +    def setUp(self):
>> +        qemu_img('create', '-f', iotests.imgfmt, test_img, '64k')
>> +        self.vm = iotests.VM()
>> +        self.vm.launch()
>> +
>> +    def tearDown(self):
>> +        self.vm.shutdown()
>> +        os.remove(test_img)
>> +
>> +    def _server_up(self, *args):
>> +        self.assertEqual(qemu_nbd('-f', imgfmt, test_img, *args), 0)
>> +
>> +    def test_inet(self):
>> +        self._server_up('-p', str(NBD_PORT))
>> +        address = { 'type': 'inet',
>> +                    'data': {
>> +                        'host': 'localhost',
>> +                        'port': str(NBD_PORT)
>> +                    } }
>> +        self.client_test('nbd://localhost:%i' % NBD_PORT, address)
>> +
>> +    def test_unix(self):
>> +        socket = os.path.join(iotests.test_dir, 'qemu-nbd.socket')
>> +        self._server_up('-k', socket)
>> +        address = { 'type': 'unix',
>> +                    'data': { 'path': socket } }
>> +        self.client_test('nbd+unix://?socket=' + socket, address)
>> +        try:
>> +            os.remove(socket)
>> +        except OSError:
>> +            pass
> 
> If the test case fails, the socket file is leaked. We should probably
> either create and remove it in setUp()/tearDown(), or use a try/finally
> block around the test_unix code.

Yes, will do, thanks.

Max

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