103cbc771e
Most of our Python unittest-style tests only support the file protocol. You can run them with any other protocol, but the test will simply ignore your choice and use file anyway. We should let them signal that they require the file protocol so they are skipped when you want to test some other protocol. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
142 lines
5.3 KiB
Python
Executable file
142 lines
5.3 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Test the rate limit of QMP events
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#
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# Copyright (C) 2016 Igalia, S.L.
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# Author: Alberto Garcia <berto@igalia.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import iotests
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imgs = (os.path.join(iotests.test_dir, 'quorum0.img'),
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os.path.join(iotests.test_dir, 'quorum1.img'),
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os.path.join(iotests.test_dir, 'quorum2.img'))
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img_conf = (os.path.join(iotests.test_dir, 'quorum0.conf'),
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os.path.join(iotests.test_dir, 'quorum1.conf'),
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os.path.join(iotests.test_dir, 'quorum2.conf'))
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event_rate = 1000000000
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sector_size = 512
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offset = 10
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class TestQuorumEvents(iotests.QMPTestCase):
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read_pattern = 'quorum'
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def create_blkdebug_file(self, blkdebug_file, bad_sector):
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file = open(blkdebug_file, 'w')
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file.write('''
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[inject-error]
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event = "read_aio"
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errno = "5"
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sector = "%d"
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''' % bad_sector)
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file.close()
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def setUp(self):
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driveopts = ['driver=quorum', 'vote-threshold=2']
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driveopts.append('read-pattern=%s' % self.read_pattern)
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for i in range(len(imgs)):
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iotests.qemu_img('create', '-f', iotests.imgfmt, imgs[i], '1M')
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self.create_blkdebug_file(img_conf[i], i + offset)
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driveopts.append('children.%d.driver=%s' % (i, iotests.imgfmt))
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driveopts.append('children.%d.file.driver=blkdebug' % i)
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driveopts.append('children.%d.file.config=%s' % (i, img_conf[i]))
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driveopts.append('children.%d.file.image.filename=%s' % (i, imgs[i]))
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driveopts.append('children.%d.node-name=img%d' % (i, i))
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self.vm = iotests.VM()
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self.vm.add_drive(None, opts = ','.join(driveopts))
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self.vm.launch()
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def tearDown(self):
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self.vm.shutdown()
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for i in range(len(imgs)):
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os.remove(imgs[i])
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os.remove(img_conf[i])
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def do_check_event(self, node, sector = 0):
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if node == None:
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self.assertEqual(self.vm.get_qmp_event(), None)
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return
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for event in self.vm.get_qmp_events(wait=True):
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if event['event'] == 'QUORUM_REPORT_BAD':
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self.assert_qmp(event, 'data/node-name', node)
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self.assert_qmp(event, 'data/sector-num', sector)
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def testQuorum(self):
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# Generate an error and get an event
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self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
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(offset * sector_size, sector_size))
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self.vm.qtest("clock_step 10")
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self.do_check_event('img0', offset)
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# I/O errors in the same child: only one event is emitted
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delay = 10
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for i in range(3):
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self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
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(offset * sector_size, sector_size))
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self.vm.qtest("clock_step %d" % delay)
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self.do_check_event(None)
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# Wait enough so the event is finally emitted
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self.vm.qtest("clock_step %d" % (2 * event_rate))
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self.do_check_event('img0', offset)
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# I/O errors in the same child: all events are emitted
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delay = 2 * event_rate
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for i in range(3):
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self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
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(offset * sector_size, sector_size))
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self.vm.qtest("clock_step %d" % delay)
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self.do_check_event('img0', offset)
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# I/O errors in different children: all events are emitted
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delay = 10
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for i in range(len(imgs)):
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self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
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((offset + i) * sector_size, sector_size))
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self.vm.qtest("clock_step %d" % delay)
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# In fifo mode only errors in the first child are detected
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if i > 0 and self.read_pattern == 'fifo':
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self.do_check_event(None)
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else:
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self.do_check_event('img%d' % i, offset + i)
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# I/O errors in different children: all events are emitted
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delay = 2 * event_rate
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for i in range(len(imgs)):
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self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
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((offset + i) * sector_size, sector_size))
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self.vm.qtest("clock_step %d" % delay)
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# In fifo mode only errors in the first child are detected
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if i > 0 and self.read_pattern == 'fifo':
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self.do_check_event(None)
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else:
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self.do_check_event('img%d' % i, offset + i)
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# No more pending events
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self.do_check_event(None)
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class TestFifoQuorumEvents(TestQuorumEvents):
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read_pattern = 'fifo'
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if __name__ == '__main__':
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iotests.verify_quorum()
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iotests.main(supported_fmts=["raw"],
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supported_protocols=["file"])
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