1 from __future__ import print_function
2 # Common utilities and Python wrappers for qemu-iotests
4 # Copyright (C) 2012 IBM Corp.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
33 from collections import OrderedDict
35 sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
36 from qemu import qtest
38 assert sys.version_info >= (3,6)
40 # This will not work if arguments contain spaces but is necessary if we
41 # want to support the override options that ./check supports.
42 qemu_img_args = [os.environ.get('QEMU_IMG_PROG', 'qemu-img')]
43 if os.environ.get('QEMU_IMG_OPTIONS'):
44 qemu_img_args += os.environ['QEMU_IMG_OPTIONS'].strip().split(' ')
46 qemu_io_args = [os.environ.get('QEMU_IO_PROG', 'qemu-io')]
47 if os.environ.get('QEMU_IO_OPTIONS'):
48 qemu_io_args += os.environ['QEMU_IO_OPTIONS'].strip().split(' ')
50 qemu_nbd_args = [os.environ.get('QEMU_NBD_PROG', 'qemu-nbd')]
51 if os.environ.get('QEMU_NBD_OPTIONS'):
52 qemu_nbd_args += os.environ['QEMU_NBD_OPTIONS'].strip().split(' ')
54 qemu_prog = os.environ.get('QEMU_PROG', 'qemu')
55 qemu_opts = os.environ.get('QEMU_OPTIONS', '').strip().split(' ')
57 imgfmt = os.environ.get('IMGFMT', 'raw')
58 imgproto = os.environ.get('IMGPROTO', 'file')
59 test_dir = os.environ.get('TEST_DIR')
60 output_dir = os.environ.get('OUTPUT_DIR', '.')
61 cachemode = os.environ.get('CACHEMODE')
62 qemu_default_machine = os.environ.get('QEMU_DEFAULT_MACHINE')
64 socket_scm_helper = os.environ.get('SOCKET_SCM_HELPER', 'socket_scm_helper')
66 luks_default_secret_object = 'secret,id=keysec0,data=' + \
67 os.environ.get('IMGKEYSECRET', '')
68 luks_default_key_secret_opt = 'key-secret=keysec0'
72 '''Run qemu-img and return the exit code'''
73 devnull = open('/dev/null', 'r+')
74 exitcode = subprocess.call(qemu_img_args + list(args), stdin=devnull, stdout=devnull)
76 sys.stderr.write('qemu-img received signal %i: %s\n' % (-exitcode, ' '.join(qemu_img_args + list(args))))
79 def ordered_qmp(qmsg, conv_keys=True):
80 # Dictionaries are not ordered prior to 3.6, therefore:
81 if isinstance(qmsg, list):
82 return [ordered_qmp(atom) for atom in qmsg]
83 if isinstance(qmsg, dict):
85 for k, v in sorted(qmsg.items()):
87 k = k.replace('_', '-')
88 od[k] = ordered_qmp(v, conv_keys=False)
92 def qemu_img_create(*args):
95 # default luks support
96 if '-f' in args and args[args.index('-f') + 1] == 'luks':
99 if 'key-secret' not in args[i + 1]:
100 args[i + 1].append(luks_default_key_secret_opt)
101 args.insert(i + 2, '--object')
102 args.insert(i + 3, luks_default_secret_object)
104 args = ['-o', luks_default_key_secret_opt,
105 '--object', luks_default_secret_object] + args
107 args.insert(0, 'create')
109 return qemu_img(*args)
111 def qemu_img_verbose(*args):
112 '''Run qemu-img without suppressing its output and return the exit code'''
113 exitcode = subprocess.call(qemu_img_args + list(args))
115 sys.stderr.write('qemu-img received signal %i: %s\n' % (-exitcode, ' '.join(qemu_img_args + list(args))))
118 def qemu_img_pipe(*args):
119 '''Run qemu-img and return its output'''
120 subp = subprocess.Popen(qemu_img_args + list(args),
121 stdout=subprocess.PIPE,
122 stderr=subprocess.STDOUT,
123 universal_newlines=True)
124 exitcode = subp.wait()
126 sys.stderr.write('qemu-img received signal %i: %s\n' % (-exitcode, ' '.join(qemu_img_args + list(args))))
127 return subp.communicate()[0]
129 def qemu_img_log(*args):
130 result = qemu_img_pipe(*args)
131 log(result, filters=[filter_testfiles])
134 def img_info_log(filename, filter_path=None, imgopts=False, extra_args=[]):
137 args.append('--image-opts')
139 args += [ '-f', imgfmt ]
141 args.append(filename)
143 output = qemu_img_pipe(*args)
145 filter_path = filename
146 log(filter_img_info(output, filter_path))
149 '''Run qemu-io and return the stdout data'''
150 args = qemu_io_args + list(args)
151 subp = subprocess.Popen(args, stdout=subprocess.PIPE,
152 stderr=subprocess.STDOUT,
153 universal_newlines=True)
154 exitcode = subp.wait()
156 sys.stderr.write('qemu-io received signal %i: %s\n' % (-exitcode, ' '.join(args)))
157 return subp.communicate()[0]
159 def qemu_io_silent(*args):
160 '''Run qemu-io and return the exit code, suppressing stdout'''
161 args = qemu_io_args + list(args)
162 exitcode = subprocess.call(args, stdout=open('/dev/null', 'w'))
164 sys.stderr.write('qemu-io received signal %i: %s\n' %
165 (-exitcode, ' '.join(args)))
168 def get_virtio_scsi_device():
169 if qemu_default_machine == 's390-ccw-virtio':
170 return 'virtio-scsi-ccw'
171 return 'virtio-scsi-pci'
173 class QemuIoInteractive:
174 def __init__(self, *args):
175 self.args = qemu_io_args + list(args)
176 self._p = subprocess.Popen(self.args, stdin=subprocess.PIPE,
177 stdout=subprocess.PIPE,
178 stderr=subprocess.STDOUT,
179 universal_newlines=True)
180 assert self._p.stdout.read(9) == 'qemu-io> '
183 self._p.communicate('q\n')
185 def _read_output(self):
186 pattern = 'qemu-io> '
191 c = self._p.stdout.read(1)
192 # check unexpected EOF
195 if c == pattern[pos]:
200 return ''.join(s[:-n])
203 # quit command is in close(), '\n' is added automatically
204 assert '\n' not in cmd
206 assert cmd != 'q' and cmd != 'quit'
207 self._p.stdin.write(cmd + '\n')
208 self._p.stdin.flush()
209 return self._read_output()
213 '''Run qemu-nbd in daemon mode and return the parent's exit code'''
214 return subprocess.call(qemu_nbd_args + ['--fork'] + list(args))
216 def qemu_nbd_early_pipe(*args):
217 '''Run qemu-nbd in daemon mode and return both the parent's exit code
218 and its output in case of an error'''
219 subp = subprocess.Popen(qemu_nbd_args + ['--fork'] + list(args),
220 stdout=subprocess.PIPE,
221 stderr=subprocess.STDOUT,
222 universal_newlines=True)
223 exitcode = subp.wait()
225 sys.stderr.write('qemu-nbd received signal %i: %s\n' %
227 ' '.join(qemu_nbd_args + ['--fork'] + list(args))))
231 return exitcode, subp.communicate()[0]
233 def compare_images(img1, img2, fmt1=imgfmt, fmt2=imgfmt):
234 '''Return True if two image files are identical'''
235 return qemu_img('compare', '-f', fmt1,
236 '-F', fmt2, img1, img2) == 0
238 def create_image(name, size):
239 '''Create a fully-allocated raw image with sector markers'''
240 file = open(name, 'wb')
243 sector = struct.pack('>l504xl', i // 512, i // 512)
249 '''Return image's virtual size'''
250 r = qemu_img_pipe('info', '--output=json', '-f', imgfmt, img)
251 return json.loads(r)['virtual-size']
254 return isinstance(val, str)
256 test_dir_re = re.compile(r"%s" % test_dir)
257 def filter_test_dir(msg):
258 return test_dir_re.sub("TEST_DIR", msg)
260 win32_re = re.compile(r"\r")
261 def filter_win32(msg):
262 return win32_re.sub("", msg)
264 qemu_io_re = re.compile(r"[0-9]* ops; [0-9\/:. sec]* \([0-9\/.inf]* [EPTGMKiBbytes]*\/sec and [0-9\/.inf]* ops\/sec\)")
265 def filter_qemu_io(msg):
266 msg = filter_win32(msg)
267 return qemu_io_re.sub("X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)", msg)
269 chown_re = re.compile(r"chown [0-9]+:[0-9]+")
270 def filter_chown(msg):
271 return chown_re.sub("chown UID:GID", msg)
273 def filter_qmp_event(event):
274 '''Filter a QMP event dict'''
276 if 'timestamp' in event:
277 event['timestamp']['seconds'] = 'SECS'
278 event['timestamp']['microseconds'] = 'USECS'
281 def filter_qmp(qmsg, filter_fn):
282 '''Given a string filter, filter a QMP object's values.
283 filter_fn takes a (key, value) pair.'''
284 # Iterate through either lists or dicts;
285 if isinstance(qmsg, list):
286 items = enumerate(qmsg)
291 if isinstance(v, list) or isinstance(v, dict):
292 qmsg[k] = filter_qmp(v, filter_fn)
294 qmsg[k] = filter_fn(k, v)
297 def filter_testfiles(msg):
298 prefix = os.path.join(test_dir, "%s-" % (os.getpid()))
299 return msg.replace(prefix, 'TEST_DIR/PID-')
301 def filter_qmp_testfiles(qmsg):
302 def _filter(key, value):
304 return filter_testfiles(value)
306 return filter_qmp(qmsg, _filter)
308 def filter_generated_node_ids(msg):
309 return re.sub("#block[0-9]+", "NODE_NAME", msg)
311 def filter_img_info(output, filename):
313 for line in output.split('\n'):
314 if 'disk size' in line or 'actual-size' in line:
316 line = line.replace(filename, 'TEST_IMG') \
317 .replace(imgfmt, 'IMGFMT')
318 line = re.sub('iters: [0-9]+', 'iters: XXX', line)
319 line = re.sub('uuid: [-a-f0-9]+', 'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX', line)
320 line = re.sub('cid: [0-9]+', 'cid: XXXXXXXXXX', line)
322 return '\n'.join(lines)
324 def filter_imgfmt(msg):
325 return msg.replace(imgfmt, 'IMGFMT')
327 def filter_qmp_imgfmt(qmsg):
328 def _filter(key, value):
330 return filter_imgfmt(value)
332 return filter_qmp(qmsg, _filter)
334 def log(msg, filters=[], indent=None):
335 '''Logs either a string message or a JSON serializable message (like QMP).
336 If indent is provided, JSON serializable messages are pretty-printed.'''
339 if isinstance(msg, dict) or isinstance(msg, list):
340 # Python < 3.4 needs to know not to add whitespace when pretty-printing:
341 separators = (', ', ': ') if indent is None else (',', ': ')
342 # Don't sort if it's already sorted
343 do_sort = not isinstance(msg, OrderedDict)
344 print(json.dumps(msg, sort_keys=do_sort,
345 indent=indent, separators=separators))
350 def __init__(self, seconds, errmsg = "Timeout"):
351 self.seconds = seconds
354 signal.signal(signal.SIGALRM, self.timeout)
355 signal.setitimer(signal.ITIMER_REAL, self.seconds)
357 def __exit__(self, type, value, traceback):
358 signal.setitimer(signal.ITIMER_REAL, 0)
360 def timeout(self, signum, frame):
361 raise Exception(self.errmsg)
363 def file_pattern(name):
364 return "{0}-{1}".format(os.getpid(), name)
366 class FilePaths(object):
368 FilePaths is an auto-generated filename that cleans itself up.
370 Use this context manager to generate filenames and ensure that the file
373 with FilePaths(['test.img']) as img_path:
374 qemu_img('create', img_path, '1G')
375 # migration_sock_path is automatically deleted
377 def __init__(self, names):
380 self.paths.append(os.path.join(test_dir, file_pattern(name)))
385 def __exit__(self, exc_type, exc_val, exc_tb):
387 for path in self.paths:
393 class FilePath(FilePaths):
395 FilePath is a specialization of FilePaths that takes a single filename.
397 def __init__(self, name):
398 super(FilePath, self).__init__([name])
403 def file_path_remover():
404 for path in reversed(file_path_remover.paths):
411 def file_path(*names):
412 ''' Another way to get auto-generated filename that cleans itself up.
416 img_a, img_b = file_path('a.img', 'b.img')
417 sock = file_path('socket')
420 if not hasattr(file_path_remover, 'paths'):
421 file_path_remover.paths = []
422 atexit.register(file_path_remover)
426 filename = file_pattern(name)
427 path = os.path.join(test_dir, filename)
428 file_path_remover.paths.append(path)
431 return paths[0] if len(paths) == 1 else paths
433 def remote_filename(path):
434 if imgproto == 'file':
436 elif imgproto == 'ssh':
439 raise Exception("Protocol %s not supported" % (imgproto))
441 class VM(qtest.QEMUQtestMachine):
444 def __init__(self, path_suffix=''):
445 name = "qemu%s-%d" % (path_suffix, os.getpid())
446 super(VM, self).__init__(qemu_prog, qemu_opts, name=name,
448 socket_scm_helper=socket_scm_helper)
451 def add_object(self, opts):
452 self._args.append('-object')
453 self._args.append(opts)
456 def add_device(self, opts):
457 self._args.append('-device')
458 self._args.append(opts)
461 def add_drive_raw(self, opts):
462 self._args.append('-drive')
463 self._args.append(opts)
466 def add_drive(self, path, opts='', interface='virtio', format=imgfmt):
467 '''Add a virtio-blk drive to the VM'''
468 options = ['if=%s' % interface,
469 'id=drive%d' % self._num_drives]
472 options.append('file=%s' % path)
473 options.append('format=%s' % format)
474 options.append('cache=%s' % cachemode)
479 if format == 'luks' and 'key-secret' not in opts:
480 # default luks support
481 if luks_default_secret_object not in self._args:
482 self.add_object(luks_default_secret_object)
484 options.append(luks_default_key_secret_opt)
486 self._args.append('-drive')
487 self._args.append(','.join(options))
488 self._num_drives += 1
491 def add_blockdev(self, opts):
492 self._args.append('-blockdev')
493 if isinstance(opts, str):
494 self._args.append(opts)
496 self._args.append(','.join(opts))
499 def add_incoming(self, addr):
500 self._args.append('-incoming')
501 self._args.append(addr)
504 def pause_drive(self, drive, event=None):
505 '''Pause drive r/w operations'''
507 self.pause_drive(drive, "read_aio")
508 self.pause_drive(drive, "write_aio")
510 self.qmp('human-monitor-command',
511 command_line='qemu-io %s "break %s bp_%s"' % (drive, event, drive))
513 def resume_drive(self, drive):
514 self.qmp('human-monitor-command',
515 command_line='qemu-io %s "remove_break bp_%s"' % (drive, drive))
517 def hmp_qemu_io(self, drive, cmd):
518 '''Write to a given drive using an HMP command'''
519 return self.qmp('human-monitor-command',
520 command_line='qemu-io %s "%s"' % (drive, cmd))
522 def flatten_qmp_object(self, obj, output=None, basestr=''):
525 if isinstance(obj, list):
526 for i in range(len(obj)):
527 self.flatten_qmp_object(obj[i], output, basestr + str(i) + '.')
528 elif isinstance(obj, dict):
530 self.flatten_qmp_object(obj[key], output, basestr + key + '.')
532 output[basestr[:-1]] = obj # Strip trailing '.'
535 def qmp_to_opts(self, obj):
536 obj = self.flatten_qmp_object(obj)
539 output_list += [key + '=' + obj[key]]
540 return ','.join(output_list)
542 def get_qmp_events_filtered(self, wait=60.0):
544 for ev in self.get_qmp_events(wait=wait):
545 result.append(filter_qmp_event(ev))
548 def qmp_log(self, cmd, filters=[], indent=None, **kwargs):
549 full_cmd = OrderedDict((
551 ("arguments", ordered_qmp(kwargs))
553 log(full_cmd, filters, indent=indent)
554 result = self.qmp(cmd, **kwargs)
555 log(result, filters, indent=indent)
558 # Returns None on success, and an error string on failure
559 def run_job(self, job, auto_finalize=True, auto_dismiss=False,
560 pre_finalize=None, cancel=False, use_log=True, wait=60.0):
562 run_job moves a job from creation through to dismissal.
564 :param job: String. ID of recently-launched job
565 :param auto_finalize: Bool. True if the job was launched with
566 auto_finalize. Defaults to True.
567 :param auto_dismiss: Bool. True if the job was launched with
568 auto_dismiss=True. Defaults to False.
569 :param pre_finalize: Callback. A callable that takes no arguments to be
570 invoked prior to issuing job-finalize, if any.
571 :param cancel: Bool. When true, cancels the job after the pre_finalize
573 :param use_log: Bool. When false, does not log QMP messages.
574 :param wait: Float. Timeout value specifying how long to wait for any
575 event, in seconds. Defaults to 60.0.
577 match_device = {'data': {'device': job}}
578 match_id = {'data': {'id': job}}
580 ('BLOCK_JOB_COMPLETED', match_device),
581 ('BLOCK_JOB_CANCELLED', match_device),
582 ('BLOCK_JOB_ERROR', match_device),
583 ('BLOCK_JOB_READY', match_device),
584 ('BLOCK_JOB_PENDING', match_id),
585 ('JOB_STATUS_CHANGE', match_id)
589 ev = filter_qmp_event(self.events_wait(events))
590 if ev['event'] != 'JOB_STATUS_CHANGE':
594 status = ev['data']['status']
595 if status == 'aborting':
596 result = self.qmp('query-jobs')
597 for j in result['return']:
601 log('Job failed: %s' % (j['error']))
602 elif status == 'pending' and not auto_finalize:
605 if cancel and use_log:
606 self.qmp_log('job-cancel', id=job)
608 self.qmp('job-cancel', id=job)
610 self.qmp_log('job-finalize', id=job)
612 self.qmp('job-finalize', id=job)
613 elif status == 'concluded' and not auto_dismiss:
615 self.qmp_log('job-dismiss', id=job)
617 self.qmp('job-dismiss', id=job)
618 elif status == 'null':
621 def enable_migration_events(self, name):
622 log('Enabling migration QMP events on %s...' % name)
623 log(self.qmp('migrate-set-capabilities', capabilities=[
625 'capability': 'events',
630 def wait_migration(self):
632 event = self.event_wait('MIGRATION')
633 log(event, filters=[filter_qmp_event])
634 if event['data']['status'] == 'completed':
637 def node_info(self, node_name):
638 nodes = self.qmp('query-named-block-nodes')
639 for x in nodes['return']:
640 if x['node-name'] == node_name:
644 def query_bitmaps(self):
645 res = self.qmp("query-named-block-nodes")
646 return {device['node-name']: device['dirty-bitmaps']
647 for device in res['return'] if 'dirty-bitmaps' in device}
649 def get_bitmap(self, node_name, bitmap_name, recording=None, bitmaps=None):
651 get a specific bitmap from the object returned by query_bitmaps.
652 :param recording: If specified, filter results by the specified value.
653 :param bitmaps: If specified, use it instead of call query_bitmaps()
656 bitmaps = self.query_bitmaps()
658 for bitmap in bitmaps[node_name]:
659 if bitmap.get('name', '') == bitmap_name:
660 if recording is None:
662 elif bitmap.get('recording') == recording:
666 def check_bitmap_status(self, node_name, bitmap_name, fields):
667 ret = self.get_bitmap(node_name, bitmap_name)
669 return fields.items() <= ret.items()
672 index_re = re.compile(r'([^\[]+)\[([^\]]+)\]')
674 class QMPTestCase(unittest.TestCase):
675 '''Abstract base class for QMP test cases'''
677 def dictpath(self, d, path):
678 '''Traverse a path in a nested dict'''
679 for component in path.split('/'):
680 m = index_re.match(component)
682 component, idx = m.groups()
685 if not isinstance(d, dict) or component not in d:
686 self.fail('failed path traversal for "%s" in "%s"' % (path, str(d)))
690 if not isinstance(d, list):
691 self.fail('path component "%s" in "%s" is not a list in "%s"' % (component, path, str(d)))
695 self.fail('invalid index "%s" in path "%s" in "%s"' % (idx, path, str(d)))
698 def assert_qmp_absent(self, d, path):
700 result = self.dictpath(d, path)
701 except AssertionError:
703 self.fail('path "%s" has value "%s"' % (path, str(result)))
705 def assert_qmp(self, d, path, value):
706 '''Assert that the value for a specific path in a QMP dict
707 matches. When given a list of values, assert that any of
710 result = self.dictpath(d, path)
712 # [] makes no sense as a list of valid values, so treat it as
713 # an actual single value.
714 if isinstance(value, list) and value != []:
718 self.fail('no match for "%s" in %s' % (str(result), str(value)))
720 self.assertEqual(result, value,
721 'values not equal "%s" and "%s"'
722 % (str(result), str(value)))
724 def assert_no_active_block_jobs(self):
725 result = self.vm.qmp('query-block-jobs')
726 self.assert_qmp(result, 'return', [])
728 def assert_has_block_node(self, node_name=None, file_name=None):
729 """Issue a query-named-block-nodes and assert node_name and/or
730 file_name is present in the result"""
731 def check_equal_or_none(a, b):
732 return a == None or b == None or a == b
733 assert node_name or file_name
734 result = self.vm.qmp('query-named-block-nodes')
735 for x in result["return"]:
736 if check_equal_or_none(x.get("node-name"), node_name) and \
737 check_equal_or_none(x.get("file"), file_name):
739 self.assertTrue(False, "Cannot find %s %s in result:\n%s" % \
740 (node_name, file_name, result))
742 def assert_json_filename_equal(self, json_filename, reference):
743 '''Asserts that the given filename is a json: filename and that its
744 content is equal to the given reference object'''
745 self.assertEqual(json_filename[:5], 'json:')
746 self.assertEqual(self.vm.flatten_qmp_object(json.loads(json_filename[5:])),
747 self.vm.flatten_qmp_object(reference))
749 def cancel_and_wait(self, drive='drive0', force=False, resume=False, wait=60.0):
750 '''Cancel a block job and wait for it to finish, returning the event'''
751 result = self.vm.qmp('block-job-cancel', device=drive, force=force)
752 self.assert_qmp(result, 'return', {})
755 self.vm.resume_drive(drive)
760 for event in self.vm.get_qmp_events(wait=wait):
761 if event['event'] == 'BLOCK_JOB_COMPLETED' or \
762 event['event'] == 'BLOCK_JOB_CANCELLED':
763 self.assert_qmp(event, 'data/device', drive)
766 elif event['event'] == 'JOB_STATUS_CHANGE':
767 self.assert_qmp(event, 'data/id', drive)
770 self.assert_no_active_block_jobs()
773 def wait_until_completed(self, drive='drive0', check_offset=True, wait=60.0):
774 '''Wait for a block job to finish, returning the event'''
776 for event in self.vm.get_qmp_events(wait=wait):
777 if event['event'] == 'BLOCK_JOB_COMPLETED':
778 self.assert_qmp(event, 'data/device', drive)
779 self.assert_qmp_absent(event, 'data/error')
781 self.assert_qmp(event, 'data/offset', event['data']['len'])
782 self.assert_no_active_block_jobs()
784 elif event['event'] == 'JOB_STATUS_CHANGE':
785 self.assert_qmp(event, 'data/id', drive)
787 def wait_ready(self, drive='drive0'):
788 '''Wait until a block job BLOCK_JOB_READY event'''
789 f = {'data': {'type': 'mirror', 'device': drive } }
790 event = self.vm.event_wait(name='BLOCK_JOB_READY', match=f)
792 def wait_ready_and_cancel(self, drive='drive0'):
793 self.wait_ready(drive=drive)
794 event = self.cancel_and_wait(drive=drive)
795 self.assertEqual(event['event'], 'BLOCK_JOB_COMPLETED')
796 self.assert_qmp(event, 'data/type', 'mirror')
797 self.assert_qmp(event, 'data/offset', event['data']['len'])
799 def complete_and_wait(self, drive='drive0', wait_ready=True):
800 '''Complete a block job and wait for it to finish'''
802 self.wait_ready(drive=drive)
804 result = self.vm.qmp('block-job-complete', device=drive)
805 self.assert_qmp(result, 'return', {})
807 event = self.wait_until_completed(drive=drive)
808 self.assert_qmp(event, 'data/type', 'mirror')
810 def pause_wait(self, job_id='job0'):
811 with Timeout(1, "Timeout waiting for job to pause"):
813 result = self.vm.qmp('query-block-jobs')
815 for job in result['return']:
816 if job['device'] == job_id:
818 if job['paused'] == True and job['busy'] == False:
823 def pause_job(self, job_id='job0', wait=True):
824 result = self.vm.qmp('block-job-pause', device=job_id)
825 self.assert_qmp(result, 'return', {})
827 return self.pause_wait(job_id)
832 '''Skip this test suite'''
833 # Each test in qemu-iotests has a number ("seq")
834 seq = os.path.basename(sys.argv[0])
836 open('%s/%s.notrun' % (output_dir, seq), 'w').write(reason + '\n')
837 print('%s not run: %s' % (seq, reason))
840 def case_notrun(reason):
841 '''Skip this test case'''
842 # Each test in qemu-iotests has a number ("seq")
843 seq = os.path.basename(sys.argv[0])
845 open('%s/%s.casenotrun' % (output_dir, seq), 'a').write(
846 ' [case not run] ' + reason + '\n')
848 def verify_image_format(supported_fmts=[], unsupported_fmts=[]):
849 assert not (supported_fmts and unsupported_fmts)
851 if 'generic' in supported_fmts and \
852 os.environ.get('IMGFMT_GENERIC', 'true') == 'true':
854 # _supported_fmt generic
858 not_sup = supported_fmts and (imgfmt not in supported_fmts)
859 if not_sup or (imgfmt in unsupported_fmts):
860 notrun('not suitable for this image format: %s' % imgfmt)
862 def verify_protocol(supported=[], unsupported=[]):
863 assert not (supported and unsupported)
865 if 'generic' in supported:
868 not_sup = supported and (imgproto not in supported)
869 if not_sup or (imgproto in unsupported):
870 notrun('not suitable for this protocol: %s' % imgproto)
872 def verify_platform(supported_oses=['linux']):
873 if True not in [sys.platform.startswith(x) for x in supported_oses]:
874 notrun('not suitable for this OS: %s' % sys.platform)
876 def verify_cache_mode(supported_cache_modes=[]):
877 if supported_cache_modes and (cachemode not in supported_cache_modes):
878 notrun('not suitable for this cache mode: %s' % cachemode)
880 def supports_quorum():
881 return 'quorum' in qemu_img_pipe('--help')
884 '''Skip test suite if quorum support is not available'''
885 if not supports_quorum():
886 notrun('quorum support missing')
888 def qemu_pipe(*args):
889 '''Run qemu with an option to print something and exit (e.g. a help option),
890 and return its output'''
891 args = [qemu_prog] + qemu_opts + list(args)
892 subp = subprocess.Popen(args, stdout=subprocess.PIPE,
893 stderr=subprocess.STDOUT,
894 universal_newlines=True)
895 exitcode = subp.wait()
897 sys.stderr.write('qemu received signal %i: %s\n' % (-exitcode,
899 return subp.communicate()[0]
901 def supported_formats(read_only=False):
902 '''Set 'read_only' to True to check ro-whitelist
903 Otherwise, rw-whitelist is checked'''
904 format_message = qemu_pipe("-drive", "format=help")
905 line = 1 if read_only else 0
906 return format_message.splitlines()[line].split(":")[1].split()
908 def skip_if_unsupported(required_formats=[], read_only=False):
909 '''Skip Test Decorator
910 Runs the test if all the required formats are whitelisted'''
911 def skip_test_decorator(func):
912 def func_wrapper(*args, **kwargs):
913 usf_list = list(set(required_formats) -
914 set(supported_formats(read_only)))
916 case_notrun('{}: formats {} are not whitelisted'.format(
919 return func(*args, **kwargs)
921 return skip_test_decorator
923 def execute_unittest(output, verbosity, debug):
924 runner = unittest.TextTestRunner(stream=output, descriptions=True,
927 # unittest.main() will use sys.exit(); so expect a SystemExit
929 unittest.main(testRunner=runner)
932 sys.stderr.write(re.sub(r'Ran (\d+) tests? in [\d.]+s',
933 r'Ran \1 tests', output.getvalue()))
935 def execute_test(test_function=None,
936 supported_fmts=[], supported_oses=['linux'],
937 supported_cache_modes=[], unsupported_fmts=[],
938 supported_protocols=[], unsupported_protocols=[]):
939 """Run either unittest or script-style tests."""
941 # We are using TEST_DIR and QEMU_DEFAULT_MACHINE as proxies to
942 # indicate that we're not being run via "check". There may be
943 # other things set up by "check" that individual test cases rely
945 if test_dir is None or qemu_default_machine is None:
946 sys.stderr.write('Please run this test via the "check" script\n')
947 sys.exit(os.EX_USAGE)
949 debug = '-d' in sys.argv
951 verify_image_format(supported_fmts, unsupported_fmts)
952 verify_protocol(supported_protocols, unsupported_protocols)
953 verify_platform(supported_oses)
954 verify_cache_mode(supported_cache_modes)
959 sys.argv.remove('-d')
961 # We need to filter out the time taken from the output so that
962 # qemu-iotest can reliably diff the results against master output.
963 output = io.StringIO()
965 logging.basicConfig(level=(logging.DEBUG if debug else logging.WARN))
967 if not test_function:
968 execute_unittest(output, verbosity, debug)
972 def script_main(test_function, *args, **kwargs):
973 """Run script-style tests outside of the unittest framework"""
974 execute_test(test_function, *args, **kwargs)
976 def main(*args, **kwargs):
977 """Run tests using the unittest framework"""
978 execute_test(None, *args, **kwargs)