1 # Common utilities and Python wrappers for qemu-iotests
3 # Copyright (C) 2012 IBM Corp.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 from collections
import OrderedDict
32 from typing
import (Any
, Callable
, Dict
, Iterable
,
33 List
, Optional
, Sequence
, Tuple
, TypeVar
)
36 from contextlib
import contextmanager
38 # pylint: disable=import-error, wrong-import-position
39 sys
.path
.append(os
.path
.join(os
.path
.dirname(__file__
), '..', '..', 'python'))
40 from qemu
import qtest
41 from qemu
.qmp
import QMPMessage
43 # Use this logger for logging messages directly from the iotests module
44 logger
= logging
.getLogger('qemu.iotests')
45 logger
.addHandler(logging
.NullHandler())
47 # Use this logger for messages that ought to be used for diff output.
48 test_logger
= logging
.getLogger('qemu.iotests.diff_io')
53 # This will not work if arguments contain spaces but is necessary if we
54 # want to support the override options that ./check supports.
55 qemu_img_args
= [os
.environ
.get('QEMU_IMG_PROG', 'qemu-img')]
56 if os
.environ
.get('QEMU_IMG_OPTIONS'):
57 qemu_img_args
+= os
.environ
['QEMU_IMG_OPTIONS'].strip().split(' ')
59 qemu_io_args
= [os
.environ
.get('QEMU_IO_PROG', 'qemu-io')]
60 if os
.environ
.get('QEMU_IO_OPTIONS'):
61 qemu_io_args
+= os
.environ
['QEMU_IO_OPTIONS'].strip().split(' ')
63 qemu_io_args_no_fmt
= [os
.environ
.get('QEMU_IO_PROG', 'qemu-io')]
64 if os
.environ
.get('QEMU_IO_OPTIONS_NO_FMT'):
65 qemu_io_args_no_fmt
+= \
66 os
.environ
['QEMU_IO_OPTIONS_NO_FMT'].strip().split(' ')
68 qemu_nbd_prog
= os
.environ
.get('QEMU_NBD_PROG', 'qemu-nbd')
69 qemu_nbd_args
= [qemu_nbd_prog
]
70 if os
.environ
.get('QEMU_NBD_OPTIONS'):
71 qemu_nbd_args
+= os
.environ
['QEMU_NBD_OPTIONS'].strip().split(' ')
73 qemu_prog
= os
.environ
.get('QEMU_PROG', 'qemu')
74 qemu_opts
= os
.environ
.get('QEMU_OPTIONS', '').strip().split(' ')
76 imgfmt
= os
.environ
.get('IMGFMT', 'raw')
77 imgproto
= os
.environ
.get('IMGPROTO', 'file')
78 test_dir
= os
.environ
.get('TEST_DIR')
79 sock_dir
= os
.environ
.get('SOCK_DIR')
80 output_dir
= os
.environ
.get('OUTPUT_DIR', '.')
81 cachemode
= os
.environ
.get('CACHEMODE')
82 aiomode
= os
.environ
.get('AIOMODE')
83 qemu_default_machine
= os
.environ
.get('QEMU_DEFAULT_MACHINE')
85 socket_scm_helper
= os
.environ
.get('SOCKET_SCM_HELPER', 'socket_scm_helper')
87 luks_default_secret_object
= 'secret,id=keysec0,data=' + \
88 os
.environ
.get('IMGKEYSECRET', '')
89 luks_default_key_secret_opt
= 'key-secret=keysec0'
92 def qemu_tool_pipe_and_status(tool
: str, args
: Sequence
[str],
93 connect_stderr
: bool = True) -> Tuple
[str, int]:
95 Run a tool and return both its output and its exit code
97 stderr
= subprocess
.STDOUT
if connect_stderr
else None
98 subp
= subprocess
.Popen(args
,
99 stdout
=subprocess
.PIPE
,
101 universal_newlines
=True)
102 output
= subp
.communicate()[0]
103 if subp
.returncode
< 0:
105 sys
.stderr
.write(f
'{tool} received signal {-subp.returncode}: {cmd}\n')
106 return (output
, subp
.returncode
)
108 def qemu_img_pipe_and_status(*args
: str) -> Tuple
[str, int]:
110 Run qemu-img and return both its output and its exit code
112 full_args
= qemu_img_args
+ list(args
)
113 return qemu_tool_pipe_and_status('qemu-img', full_args
)
115 def qemu_img(*args
: str) -> int:
116 '''Run qemu-img and return the exit code'''
117 return qemu_img_pipe_and_status(*args
)[1]
119 def ordered_qmp(qmsg
, conv_keys
=True):
120 # Dictionaries are not ordered prior to 3.6, therefore:
121 if isinstance(qmsg
, list):
122 return [ordered_qmp(atom
) for atom
in qmsg
]
123 if isinstance(qmsg
, dict):
125 for k
, v
in sorted(qmsg
.items()):
127 k
= k
.replace('_', '-')
128 od
[k
] = ordered_qmp(v
, conv_keys
=False)
132 def qemu_img_create(*args
):
135 # default luks support
136 if '-f' in args
and args
[args
.index('-f') + 1] == 'luks':
139 if 'key-secret' not in args
[i
+ 1]:
140 args
[i
+ 1].append(luks_default_key_secret_opt
)
141 args
.insert(i
+ 2, '--object')
142 args
.insert(i
+ 3, luks_default_secret_object
)
144 args
= ['-o', luks_default_key_secret_opt
,
145 '--object', luks_default_secret_object
] + args
147 args
.insert(0, 'create')
149 return qemu_img(*args
)
151 def qemu_img_measure(*args
):
152 return json
.loads(qemu_img_pipe("measure", "--output", "json", *args
))
154 def qemu_img_check(*args
):
155 return json
.loads(qemu_img_pipe("check", "--output", "json", *args
))
157 def qemu_img_verbose(*args
):
158 '''Run qemu-img without suppressing its output and return the exit code'''
159 exitcode
= subprocess
.call(qemu_img_args
+ list(args
))
161 sys
.stderr
.write('qemu-img received signal %i: %s\n'
162 % (-exitcode
, ' '.join(qemu_img_args
+ list(args
))))
165 def qemu_img_pipe(*args
: str) -> str:
166 '''Run qemu-img and return its output'''
167 return qemu_img_pipe_and_status(*args
)[0]
169 def qemu_img_log(*args
):
170 result
= qemu_img_pipe(*args
)
171 log(result
, filters
=[filter_testfiles
])
174 def img_info_log(filename
, filter_path
=None, imgopts
=False, extra_args
=()):
177 args
.append('--image-opts')
179 args
+= ['-f', imgfmt
]
181 args
.append(filename
)
183 output
= qemu_img_pipe(*args
)
185 filter_path
= filename
186 log(filter_img_info(output
, filter_path
))
189 '''Run qemu-io and return the stdout data'''
190 args
= qemu_io_args
+ list(args
)
191 return qemu_tool_pipe_and_status('qemu-io', args
)[0]
193 def qemu_io_log(*args
):
194 result
= qemu_io(*args
)
195 log(result
, filters
=[filter_testfiles
, filter_qemu_io
])
198 def qemu_io_silent(*args
):
199 '''Run qemu-io and return the exit code, suppressing stdout'''
200 if '-f' in args
or '--image-opts' in args
:
201 default_args
= qemu_io_args_no_fmt
203 default_args
= qemu_io_args
205 args
= default_args
+ list(args
)
206 exitcode
= subprocess
.call(args
, stdout
=open('/dev/null', 'w'))
208 sys
.stderr
.write('qemu-io received signal %i: %s\n' %
209 (-exitcode
, ' '.join(args
)))
212 def qemu_io_silent_check(*args
):
213 '''Run qemu-io and return the true if subprocess returned 0'''
214 args
= qemu_io_args
+ list(args
)
215 exitcode
= subprocess
.call(args
, stdout
=open('/dev/null', 'w'),
216 stderr
=subprocess
.STDOUT
)
219 def get_virtio_scsi_device():
220 if qemu_default_machine
== 's390-ccw-virtio':
221 return 'virtio-scsi-ccw'
222 return 'virtio-scsi-pci'
224 class QemuIoInteractive
:
225 def __init__(self
, *args
):
226 self
.args
= qemu_io_args_no_fmt
+ list(args
)
227 self
._p
= subprocess
.Popen(self
.args
, stdin
=subprocess
.PIPE
,
228 stdout
=subprocess
.PIPE
,
229 stderr
=subprocess
.STDOUT
,
230 universal_newlines
=True)
231 out
= self
._p
.stdout
.read(9)
232 if out
!= 'qemu-io> ':
233 # Most probably qemu-io just failed to start.
234 # Let's collect the whole output and exit.
235 out
+= self
._p
.stdout
.read()
236 self
._p
.wait(timeout
=1)
237 raise ValueError(out
)
240 self
._p
.communicate('q\n')
242 def _read_output(self
):
243 pattern
= 'qemu-io> '
248 c
= self
._p
.stdout
.read(1)
249 # check unexpected EOF
252 if c
== pattern
[pos
]:
257 return ''.join(s
[:-n
])
260 # quit command is in close(), '\n' is added automatically
261 assert '\n' not in cmd
263 assert cmd
not in ('q', 'quit')
264 self
._p
.stdin
.write(cmd
+ '\n')
265 self
._p
.stdin
.flush()
266 return self
._read
_output
()
270 '''Run qemu-nbd in daemon mode and return the parent's exit code'''
271 return subprocess
.call(qemu_nbd_args
+ ['--fork'] + list(args
))
273 def qemu_nbd_early_pipe(*args
: str) -> Tuple
[int, str]:
274 '''Run qemu-nbd in daemon mode and return both the parent's exit code
275 and its output in case of an error'''
276 full_args
= qemu_nbd_args
+ ['--fork'] + list(args
)
277 output
, returncode
= qemu_tool_pipe_and_status('qemu-nbd', full_args
,
278 connect_stderr
=False)
279 return returncode
, output
if returncode
else ''
281 def qemu_nbd_list_log(*args
: str) -> str:
282 '''Run qemu-nbd to list remote exports'''
283 full_args
= [qemu_nbd_prog
, '-L'] + list(args
)
284 output
, _
= qemu_tool_pipe_and_status('qemu-nbd', full_args
)
285 log(output
, filters
=[filter_testfiles
, filter_nbd_exports
])
289 def qemu_nbd_popen(*args
):
290 '''Context manager running qemu-nbd within the context'''
291 pid_file
= file_path("pid")
293 cmd
= list(qemu_nbd_args
)
294 cmd
.extend(('--persistent', '--pid-file', pid_file
))
297 log('Start NBD server')
298 p
= subprocess
.Popen(cmd
)
300 while not os
.path
.exists(pid_file
):
301 if p
.poll() is not None:
303 "qemu-nbd terminated with exit code {}: {}"
304 .format(p
.returncode
, ' '.join(cmd
)))
309 log('Kill NBD server')
313 def compare_images(img1
, img2
, fmt1
=imgfmt
, fmt2
=imgfmt
):
314 '''Return True if two image files are identical'''
315 return qemu_img('compare', '-f', fmt1
,
316 '-F', fmt2
, img1
, img2
) == 0
318 def create_image(name
, size
):
319 '''Create a fully-allocated raw image with sector markers'''
320 file = open(name
, 'wb')
323 sector
= struct
.pack('>l504xl', i
// 512, i
// 512)
329 '''Return image's virtual size'''
330 r
= qemu_img_pipe('info', '--output=json', '-f', imgfmt
, img
)
331 return json
.loads(r
)['virtual-size']
334 return isinstance(val
, str)
336 test_dir_re
= re
.compile(r
"%s" % test_dir
)
337 def filter_test_dir(msg
):
338 return test_dir_re
.sub("TEST_DIR", msg
)
340 win32_re
= re
.compile(r
"\r")
341 def filter_win32(msg
):
342 return win32_re
.sub("", msg
)
344 qemu_io_re
= re
.compile(r
"[0-9]* ops; [0-9\/:. sec]* "
345 r
"\([0-9\/.inf]* [EPTGMKiBbytes]*\/sec "
346 r
"and [0-9\/.inf]* ops\/sec\)")
347 def filter_qemu_io(msg
):
348 msg
= filter_win32(msg
)
349 return qemu_io_re
.sub("X ops; XX:XX:XX.X "
350 "(XXX YYY/sec and XXX ops/sec)", msg
)
352 chown_re
= re
.compile(r
"chown [0-9]+:[0-9]+")
353 def filter_chown(msg
):
354 return chown_re
.sub("chown UID:GID", msg
)
356 def filter_qmp_event(event
):
357 '''Filter a QMP event dict'''
359 if 'timestamp' in event
:
360 event
['timestamp']['seconds'] = 'SECS'
361 event
['timestamp']['microseconds'] = 'USECS'
364 def filter_qmp(qmsg
, filter_fn
):
365 '''Given a string filter, filter a QMP object's values.
366 filter_fn takes a (key, value) pair.'''
367 # Iterate through either lists or dicts;
368 if isinstance(qmsg
, list):
369 items
= enumerate(qmsg
)
374 if isinstance(v
, (dict, list)):
375 qmsg
[k
] = filter_qmp(v
, filter_fn
)
377 qmsg
[k
] = filter_fn(k
, v
)
380 def filter_testfiles(msg
):
381 pref1
= os
.path
.join(test_dir
, "%s-" % (os
.getpid()))
382 pref2
= os
.path
.join(sock_dir
, "%s-" % (os
.getpid()))
383 return msg
.replace(pref1
, 'TEST_DIR/PID-').replace(pref2
, 'SOCK_DIR/PID-')
385 def filter_qmp_testfiles(qmsg
):
386 def _filter(_key
, value
):
388 return filter_testfiles(value
)
390 return filter_qmp(qmsg
, _filter
)
392 def filter_virtio_scsi(output
: str) -> str:
393 return re
.sub(r
'(virtio-scsi)-(ccw|pci)', r
'\1', output
)
395 def filter_qmp_virtio_scsi(qmsg
):
396 def _filter(_key
, value
):
398 return filter_virtio_scsi(value
)
400 return filter_qmp(qmsg
, _filter
)
402 def filter_generated_node_ids(msg
):
403 return re
.sub("#block[0-9]+", "NODE_NAME", msg
)
405 def filter_img_info(output
, filename
):
407 for line
in output
.split('\n'):
408 if 'disk size' in line
or 'actual-size' in line
:
410 line
= line
.replace(filename
, 'TEST_IMG')
411 line
= filter_testfiles(line
)
412 line
= line
.replace(imgfmt
, 'IMGFMT')
413 line
= re
.sub('iters: [0-9]+', 'iters: XXX', line
)
414 line
= re
.sub('uuid: [-a-f0-9]+',
415 'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX',
417 line
= re
.sub('cid: [0-9]+', 'cid: XXXXXXXXXX', line
)
419 return '\n'.join(lines
)
421 def filter_imgfmt(msg
):
422 return msg
.replace(imgfmt
, 'IMGFMT')
424 def filter_qmp_imgfmt(qmsg
):
425 def _filter(_key
, value
):
427 return filter_imgfmt(value
)
429 return filter_qmp(qmsg
, _filter
)
431 def filter_nbd_exports(output
: str) -> str:
432 return re
.sub(r
'((min|opt|max) block): [0-9]+', r
'\1: XXX', output
)
435 Msg
= TypeVar('Msg', Dict
[str, Any
], List
[Any
], str)
438 filters
: Iterable
[Callable
[[Msg
], Msg
]] = (),
439 indent
: Optional
[int] = None) -> None:
441 Logs either a string message or a JSON serializable message (like QMP).
442 If indent is provided, JSON serializable messages are pretty-printed.
446 if isinstance(msg
, (dict, list)):
447 # Don't sort if it's already sorted
448 do_sort
= not isinstance(msg
, OrderedDict
)
449 test_logger
.info(json
.dumps(msg
, sort_keys
=do_sort
, indent
=indent
))
451 test_logger
.info(msg
)
454 def __init__(self
, seconds
, errmsg
="Timeout"):
455 self
.seconds
= seconds
458 signal
.signal(signal
.SIGALRM
, self
.timeout
)
459 signal
.setitimer(signal
.ITIMER_REAL
, self
.seconds
)
461 def __exit__(self
, exc_type
, value
, traceback
):
462 signal
.setitimer(signal
.ITIMER_REAL
, 0)
464 def timeout(self
, signum
, frame
):
465 raise Exception(self
.errmsg
)
467 def file_pattern(name
):
468 return "{0}-{1}".format(os
.getpid(), name
)
472 Context manager generating multiple file names. The generated files are
473 removed when exiting the context.
477 with FilePath('a.img', 'b.img') as (img_a, img_b):
478 # Use img_a and img_b here...
480 # a.img and b.img are automatically removed here.
482 By default images are created in iotests.test_dir. To create sockets use
485 with FilePath('a.sock', base_dir=iotests.sock_dir) as sock:
487 For convenience, calling with one argument yields a single file instead of
488 a tuple with one item.
491 def __init__(self
, *names
, base_dir
=test_dir
):
492 self
.paths
= [os
.path
.join(base_dir
, file_pattern(name
))
496 if len(self
.paths
) == 1:
501 def __exit__(self
, exc_type
, exc_val
, exc_tb
):
502 for path
in self
.paths
:
510 def file_path_remover():
511 for path
in reversed(file_path_remover
.paths
):
518 def file_path(*names
, base_dir
=test_dir
):
519 ''' Another way to get auto-generated filename that cleans itself up.
523 img_a, img_b = file_path('a.img', 'b.img')
524 sock = file_path('socket')
527 if not hasattr(file_path_remover
, 'paths'):
528 file_path_remover
.paths
= []
529 atexit
.register(file_path_remover
)
533 filename
= file_pattern(name
)
534 path
= os
.path
.join(base_dir
, filename
)
535 file_path_remover
.paths
.append(path
)
538 return paths
[0] if len(paths
) == 1 else paths
540 def remote_filename(path
):
541 if imgproto
== 'file':
543 elif imgproto
== 'ssh':
544 return "ssh://%s@127.0.0.1:22%s" % (os
.environ
.get('USER'), path
)
546 raise Exception("Protocol %s not supported" % (imgproto
))
548 class VM(qtest
.QEMUQtestMachine
):
551 def __init__(self
, path_suffix
=''):
552 name
= "qemu%s-%d" % (path_suffix
, os
.getpid())
553 super().__init
__(qemu_prog
, qemu_opts
, name
=name
,
555 socket_scm_helper
=socket_scm_helper
,
559 def add_object(self
, opts
):
560 self
._args
.append('-object')
561 self
._args
.append(opts
)
564 def add_device(self
, opts
):
565 self
._args
.append('-device')
566 self
._args
.append(opts
)
569 def add_drive_raw(self
, opts
):
570 self
._args
.append('-drive')
571 self
._args
.append(opts
)
574 def add_drive(self
, path
, opts
='', interface
='virtio', img_format
=imgfmt
):
575 '''Add a virtio-blk drive to the VM'''
576 options
= ['if=%s' % interface
,
577 'id=drive%d' % self
._num
_drives
]
580 options
.append('file=%s' % path
)
581 options
.append('format=%s' % img_format
)
582 options
.append('cache=%s' % cachemode
)
583 options
.append('aio=%s' % aiomode
)
588 if img_format
== 'luks' and 'key-secret' not in opts
:
589 # default luks support
590 if luks_default_secret_object
not in self
._args
:
591 self
.add_object(luks_default_secret_object
)
593 options
.append(luks_default_key_secret_opt
)
595 self
._args
.append('-drive')
596 self
._args
.append(','.join(options
))
597 self
._num
_drives
+= 1
600 def add_blockdev(self
, opts
):
601 self
._args
.append('-blockdev')
602 if isinstance(opts
, str):
603 self
._args
.append(opts
)
605 self
._args
.append(','.join(opts
))
608 def add_incoming(self
, addr
):
609 self
._args
.append('-incoming')
610 self
._args
.append(addr
)
613 def hmp(self
, command_line
: str, use_log
: bool = False) -> QMPMessage
:
614 cmd
= 'human-monitor-command'
615 kwargs
: Dict
[str, Any
] = {'command-line': command_line
}
617 return self
.qmp_log(cmd
, **kwargs
)
619 return self
.qmp(cmd
, **kwargs
)
621 def pause_drive(self
, drive
: str, event
: Optional
[str] = None) -> None:
622 """Pause drive r/w operations"""
624 self
.pause_drive(drive
, "read_aio")
625 self
.pause_drive(drive
, "write_aio")
627 self
.hmp(f
'qemu-io {drive} "break {event} bp_{drive}"')
629 def resume_drive(self
, drive
: str) -> None:
630 """Resume drive r/w operations"""
631 self
.hmp(f
'qemu-io {drive} "remove_break bp_{drive}"')
633 def hmp_qemu_io(self
, drive
: str, cmd
: str,
634 use_log
: bool = False) -> QMPMessage
:
635 """Write to a given drive using an HMP command"""
636 return self
.hmp(f
'qemu-io {drive} "{cmd}"', use_log
=use_log
)
638 def flatten_qmp_object(self
, obj
, output
=None, basestr
=''):
641 if isinstance(obj
, list):
642 for i
, item
in enumerate(obj
):
643 self
.flatten_qmp_object(item
, output
, basestr
+ str(i
) + '.')
644 elif isinstance(obj
, dict):
646 self
.flatten_qmp_object(obj
[key
], output
, basestr
+ key
+ '.')
648 output
[basestr
[:-1]] = obj
# Strip trailing '.'
651 def qmp_to_opts(self
, obj
):
652 obj
= self
.flatten_qmp_object(obj
)
655 output_list
+= [key
+ '=' + obj
[key
]]
656 return ','.join(output_list
)
658 def get_qmp_events_filtered(self
, wait
=60.0):
660 for ev
in self
.get_qmp_events(wait
=wait
):
661 result
.append(filter_qmp_event(ev
))
664 def qmp_log(self
, cmd
, filters
=(), indent
=None, **kwargs
):
665 full_cmd
= OrderedDict((
667 ("arguments", ordered_qmp(kwargs
))
669 log(full_cmd
, filters
, indent
=indent
)
670 result
= self
.qmp(cmd
, **kwargs
)
671 log(result
, filters
, indent
=indent
)
674 # Returns None on success, and an error string on failure
675 def run_job(self
, job
, auto_finalize
=True, auto_dismiss
=False,
676 pre_finalize
=None, cancel
=False, wait
=60.0):
678 run_job moves a job from creation through to dismissal.
680 :param job: String. ID of recently-launched job
681 :param auto_finalize: Bool. True if the job was launched with
682 auto_finalize. Defaults to True.
683 :param auto_dismiss: Bool. True if the job was launched with
684 auto_dismiss=True. Defaults to False.
685 :param pre_finalize: Callback. A callable that takes no arguments to be
686 invoked prior to issuing job-finalize, if any.
687 :param cancel: Bool. When true, cancels the job after the pre_finalize
689 :param wait: Float. Timeout value specifying how long to wait for any
690 event, in seconds. Defaults to 60.0.
692 match_device
= {'data': {'device': job
}}
693 match_id
= {'data': {'id': job
}}
695 ('BLOCK_JOB_COMPLETED', match_device
),
696 ('BLOCK_JOB_CANCELLED', match_device
),
697 ('BLOCK_JOB_ERROR', match_device
),
698 ('BLOCK_JOB_READY', match_device
),
699 ('BLOCK_JOB_PENDING', match_id
),
700 ('JOB_STATUS_CHANGE', match_id
)
704 ev
= filter_qmp_event(self
.events_wait(events
, timeout
=wait
))
705 if ev
['event'] != 'JOB_STATUS_CHANGE':
708 status
= ev
['data']['status']
709 if status
== 'aborting':
710 result
= self
.qmp('query-jobs')
711 for j
in result
['return']:
714 log('Job failed: %s' % (j
['error']))
715 elif status
== 'ready':
716 self
.qmp_log('job-complete', id=job
)
717 elif status
== 'pending' and not auto_finalize
:
721 self
.qmp_log('job-cancel', id=job
)
723 self
.qmp_log('job-finalize', id=job
)
724 elif status
== 'concluded' and not auto_dismiss
:
725 self
.qmp_log('job-dismiss', id=job
)
726 elif status
== 'null':
729 # Returns None on success, and an error string on failure
730 def blockdev_create(self
, options
, job_id
='job0', filters
=None):
732 filters
= [filter_qmp_testfiles
]
733 result
= self
.qmp_log('blockdev-create', filters
=filters
,
734 job_id
=job_id
, options
=options
)
736 if 'return' in result
:
737 assert result
['return'] == {}
738 job_result
= self
.run_job(job_id
)
740 job_result
= result
['error']
745 def enable_migration_events(self
, name
):
746 log('Enabling migration QMP events on %s...' % name
)
747 log(self
.qmp('migrate-set-capabilities', capabilities
=[
749 'capability': 'events',
754 def wait_migration(self
, expect_runstate
: Optional
[str]) -> bool:
756 event
= self
.event_wait('MIGRATION')
757 # We use the default timeout, and with a timeout, event_wait()
761 log(event
, filters
=[filter_qmp_event
])
762 if event
['data']['status'] in ('completed', 'failed'):
765 if event
['data']['status'] == 'completed':
766 # The event may occur in finish-migrate, so wait for the expected
767 # post-migration runstate
769 while runstate
!= expect_runstate
:
770 runstate
= self
.qmp('query-status')['return']['status']
775 def node_info(self
, node_name
):
776 nodes
= self
.qmp('query-named-block-nodes')
777 for x
in nodes
['return']:
778 if x
['node-name'] == node_name
:
782 def query_bitmaps(self
):
783 res
= self
.qmp("query-named-block-nodes")
784 return {device
['node-name']: device
['dirty-bitmaps']
785 for device
in res
['return'] if 'dirty-bitmaps' in device
}
787 def get_bitmap(self
, node_name
, bitmap_name
, recording
=None, bitmaps
=None):
789 get a specific bitmap from the object returned by query_bitmaps.
790 :param recording: If specified, filter results by the specified value.
791 :param bitmaps: If specified, use it instead of call query_bitmaps()
794 bitmaps
= self
.query_bitmaps()
796 for bitmap
in bitmaps
[node_name
]:
797 if bitmap
.get('name', '') == bitmap_name
:
798 if recording
is None or bitmap
.get('recording') == recording
:
802 def check_bitmap_status(self
, node_name
, bitmap_name
, fields
):
803 ret
= self
.get_bitmap(node_name
, bitmap_name
)
805 return fields
.items() <= ret
.items()
807 def assert_block_path(self
, root
, path
, expected_node
, graph
=None):
809 Check whether the node under the given path in the block graph
812 @root is the node name of the node where the @path is rooted.
814 @path is a string that consists of child names separated by
815 slashes. It must begin with a slash.
817 Examples for @root + @path:
818 - root="qcow2-node", path="/backing/file"
819 - root="quorum-node", path="/children.2/file"
821 Hypothetically, @path could be empty, in which case it would
822 point to @root. However, in practice this case is not useful
823 and hence not allowed.
825 @expected_node may be None. (All elements of the path but the
826 leaf must still exist.)
828 @graph may be None or the result of an x-debug-query-block-graph
829 call that has already been performed.
832 graph
= self
.qmp('x-debug-query-block-graph')['return']
834 iter_path
= iter(path
.split('/'))
836 # Must start with a /
837 assert next(iter_path
) == ''
839 node
= next((node
for node
in graph
['nodes'] if node
['name'] == root
),
842 # An empty @path is not allowed, so the root node must be present
843 assert node
is not None, 'Root node %s not found' % root
845 for child_name
in iter_path
:
846 assert node
is not None, 'Cannot follow path %s%s' % (root
, path
)
849 node_id
= next(edge
['child'] for edge
in graph
['edges']
850 if (edge
['parent'] == node
['id'] and
851 edge
['name'] == child_name
))
853 node
= next(node
for node
in graph
['nodes']
854 if node
['id'] == node_id
)
856 except StopIteration:
860 assert expected_node
is None, \
861 'No node found under %s (but expected %s)' % \
862 (path
, expected_node
)
864 assert node
['name'] == expected_node
, \
865 'Found node %s under %s (but expected %s)' % \
866 (node
['name'], path
, expected_node
)
868 index_re
= re
.compile(r
'([^\[]+)\[([^\]]+)\]')
870 class QMPTestCase(unittest
.TestCase
):
871 '''Abstract base class for QMP test cases'''
873 def __init__(self
, *args
, **kwargs
):
874 super().__init
__(*args
, **kwargs
)
875 # Many users of this class set a VM property we rely on heavily
876 # in the methods below.
879 def dictpath(self
, d
, path
):
880 '''Traverse a path in a nested dict'''
881 for component
in path
.split('/'):
882 m
= index_re
.match(component
)
884 component
, idx
= m
.groups()
887 if not isinstance(d
, dict) or component
not in d
:
888 self
.fail(f
'failed path traversal for "{path}" in "{d}"')
892 if not isinstance(d
, list):
893 self
.fail(f
'path component "{component}" in "{path}" '
894 f
'is not a list in "{d}"')
898 self
.fail(f
'invalid index "{idx}" in path "{path}" '
902 def assert_qmp_absent(self
, d
, path
):
904 result
= self
.dictpath(d
, path
)
905 except AssertionError:
907 self
.fail('path "%s" has value "%s"' % (path
, str(result
)))
909 def assert_qmp(self
, d
, path
, value
):
910 '''Assert that the value for a specific path in a QMP dict
911 matches. When given a list of values, assert that any of
914 result
= self
.dictpath(d
, path
)
916 # [] makes no sense as a list of valid values, so treat it as
917 # an actual single value.
918 if isinstance(value
, list) and value
!= []:
922 self
.fail('no match for "%s" in %s' % (str(result
), str(value
)))
924 self
.assertEqual(result
, value
,
925 '"%s" is "%s", expected "%s"'
926 % (path
, str(result
), str(value
)))
928 def assert_no_active_block_jobs(self
):
929 result
= self
.vm
.qmp('query-block-jobs')
930 self
.assert_qmp(result
, 'return', [])
932 def assert_has_block_node(self
, node_name
=None, file_name
=None):
933 """Issue a query-named-block-nodes and assert node_name and/or
934 file_name is present in the result"""
935 def check_equal_or_none(a
, b
):
936 return a
is None or b
is None or a
== b
937 assert node_name
or file_name
938 result
= self
.vm
.qmp('query-named-block-nodes')
939 for x
in result
["return"]:
940 if check_equal_or_none(x
.get("node-name"), node_name
) and \
941 check_equal_or_none(x
.get("file"), file_name
):
943 self
.fail("Cannot find %s %s in result:\n%s" %
944 (node_name
, file_name
, result
))
946 def assert_json_filename_equal(self
, json_filename
, reference
):
947 '''Asserts that the given filename is a json: filename and that its
948 content is equal to the given reference object'''
949 self
.assertEqual(json_filename
[:5], 'json:')
951 self
.vm
.flatten_qmp_object(json
.loads(json_filename
[5:])),
952 self
.vm
.flatten_qmp_object(reference
)
955 def cancel_and_wait(self
, drive
='drive0', force
=False,
956 resume
=False, wait
=60.0):
957 '''Cancel a block job and wait for it to finish, returning the event'''
958 result
= self
.vm
.qmp('block-job-cancel', device
=drive
, force
=force
)
959 self
.assert_qmp(result
, 'return', {})
962 self
.vm
.resume_drive(drive
)
967 for event
in self
.vm
.get_qmp_events(wait
=wait
):
968 if event
['event'] == 'BLOCK_JOB_COMPLETED' or \
969 event
['event'] == 'BLOCK_JOB_CANCELLED':
970 self
.assert_qmp(event
, 'data/device', drive
)
973 elif event
['event'] == 'JOB_STATUS_CHANGE':
974 self
.assert_qmp(event
, 'data/id', drive
)
977 self
.assert_no_active_block_jobs()
980 def wait_until_completed(self
, drive
='drive0', check_offset
=True,
981 wait
=60.0, error
=None):
982 '''Wait for a block job to finish, returning the event'''
984 for event
in self
.vm
.get_qmp_events(wait
=wait
):
985 if event
['event'] == 'BLOCK_JOB_COMPLETED':
986 self
.assert_qmp(event
, 'data/device', drive
)
988 self
.assert_qmp_absent(event
, 'data/error')
990 self
.assert_qmp(event
, 'data/offset',
991 event
['data']['len'])
993 self
.assert_qmp(event
, 'data/error', error
)
994 self
.assert_no_active_block_jobs()
996 if event
['event'] == 'JOB_STATUS_CHANGE':
997 self
.assert_qmp(event
, 'data/id', drive
)
999 def wait_ready(self
, drive
='drive0'):
1000 """Wait until a BLOCK_JOB_READY event, and return the event."""
1001 return self
.vm
.events_wait([
1003 {'data': {'type': 'mirror', 'device': drive
}}),
1005 {'data': {'type': 'commit', 'device': drive
}})
1008 def wait_ready_and_cancel(self
, drive
='drive0'):
1009 self
.wait_ready(drive
=drive
)
1010 event
= self
.cancel_and_wait(drive
=drive
)
1011 self
.assertEqual(event
['event'], 'BLOCK_JOB_COMPLETED')
1012 self
.assert_qmp(event
, 'data/type', 'mirror')
1013 self
.assert_qmp(event
, 'data/offset', event
['data']['len'])
1015 def complete_and_wait(self
, drive
='drive0', wait_ready
=True,
1016 completion_error
=None):
1017 '''Complete a block job and wait for it to finish'''
1019 self
.wait_ready(drive
=drive
)
1021 result
= self
.vm
.qmp('block-job-complete', device
=drive
)
1022 self
.assert_qmp(result
, 'return', {})
1024 event
= self
.wait_until_completed(drive
=drive
, error
=completion_error
)
1025 self
.assertTrue(event
['data']['type'] in ['mirror', 'commit'])
1027 def pause_wait(self
, job_id
='job0'):
1028 with
Timeout(3, "Timeout waiting for job to pause"):
1030 result
= self
.vm
.qmp('query-block-jobs')
1032 for job
in result
['return']:
1033 if job
['device'] == job_id
:
1035 if job
['paused'] and not job
['busy']:
1040 def pause_job(self
, job_id
='job0', wait
=True):
1041 result
= self
.vm
.qmp('block-job-pause', device
=job_id
)
1042 self
.assert_qmp(result
, 'return', {})
1044 return self
.pause_wait(job_id
)
1047 def case_skip(self
, reason
):
1048 '''Skip this test case'''
1050 self
.skipTest(reason
)
1054 '''Skip this test suite'''
1055 # Each test in qemu-iotests has a number ("seq")
1056 seq
= os
.path
.basename(sys
.argv
[0])
1058 open('%s/%s.notrun' % (output_dir
, seq
), 'w').write(reason
+ '\n')
1059 logger
.warning("%s not run: %s", seq
, reason
)
1062 def case_notrun(reason
):
1063 '''Mark this test case as not having been run (without actually
1064 skipping it, that is left to the caller). See
1065 QMPTestCase.case_skip() for a variant that actually skips the
1066 current test case.'''
1068 # Each test in qemu-iotests has a number ("seq")
1069 seq
= os
.path
.basename(sys
.argv
[0])
1071 open('%s/%s.casenotrun' % (output_dir
, seq
), 'a').write(
1072 ' [case not run] ' + reason
+ '\n')
1074 def _verify_image_format(supported_fmts
: Sequence
[str] = (),
1075 unsupported_fmts
: Sequence
[str] = ()) -> None:
1076 if 'generic' in supported_fmts
and \
1077 os
.environ
.get('IMGFMT_GENERIC', 'true') == 'true':
1079 # _supported_fmt generic
1083 not_sup
= supported_fmts
and (imgfmt
not in supported_fmts
)
1084 if not_sup
or (imgfmt
in unsupported_fmts
):
1085 notrun('not suitable for this image format: %s' % imgfmt
)
1087 if imgfmt
== 'luks':
1088 verify_working_luks()
1090 def _verify_protocol(supported
: Sequence
[str] = (),
1091 unsupported
: Sequence
[str] = ()) -> None:
1092 assert not (supported
and unsupported
)
1094 if 'generic' in supported
:
1097 not_sup
= supported
and (imgproto
not in supported
)
1098 if not_sup
or (imgproto
in unsupported
):
1099 notrun('not suitable for this protocol: %s' % imgproto
)
1101 def _verify_platform(supported
: Sequence
[str] = (),
1102 unsupported
: Sequence
[str] = ()) -> None:
1103 if any((sys
.platform
.startswith(x
) for x
in unsupported
)):
1104 notrun('not suitable for this OS: %s' % sys
.platform
)
1107 if not any((sys
.platform
.startswith(x
) for x
in supported
)):
1108 notrun('not suitable for this OS: %s' % sys
.platform
)
1110 def _verify_cache_mode(supported_cache_modes
: Sequence
[str] = ()) -> None:
1111 if supported_cache_modes
and (cachemode
not in supported_cache_modes
):
1112 notrun('not suitable for this cache mode: %s' % cachemode
)
1114 def _verify_aio_mode(supported_aio_modes
: Sequence
[str] = ()) -> None:
1115 if supported_aio_modes
and (aiomode
not in supported_aio_modes
):
1116 notrun('not suitable for this aio mode: %s' % aiomode
)
1118 def _verify_formats(required_formats
: Sequence
[str] = ()) -> None:
1119 usf_list
= list(set(required_formats
) - set(supported_formats()))
1121 notrun(f
'formats {usf_list} are not whitelisted')
1123 def supports_quorum():
1124 return 'quorum' in qemu_img_pipe('--help')
1126 def verify_quorum():
1127 '''Skip test suite if quorum support is not available'''
1128 if not supports_quorum():
1129 notrun('quorum support missing')
1131 def has_working_luks() -> Tuple
[bool, str]:
1133 Check whether our LUKS driver can actually create images
1134 (this extends to LUKS encryption for qcow2).
1136 If not, return the reason why.
1139 img_file
= f
'{test_dir}/luks-test.luks'
1140 (output
, status
) = \
1141 qemu_img_pipe_and_status('create', '-f', 'luks',
1142 '--object', luks_default_secret_object
,
1143 '-o', luks_default_key_secret_opt
,
1144 '-o', 'iter-time=10',
1153 for line
in output
.splitlines():
1154 if img_file
+ ':' in line
:
1155 reason
= line
.split(img_file
+ ':', 1)[1].strip()
1158 return (False, reason
)
1162 def verify_working_luks():
1164 Skip test suite if LUKS does not work
1166 (working
, reason
) = has_working_luks()
1170 def qemu_pipe(*args
: str) -> str:
1172 Run qemu with an option to print something and exit (e.g. a help option).
1174 :return: QEMU's stdout output.
1176 full_args
= [qemu_prog
] + qemu_opts
+ list(args
)
1177 output
, _
= qemu_tool_pipe_and_status('qemu', full_args
)
1180 def supported_formats(read_only
=False):
1181 '''Set 'read_only' to True to check ro-whitelist
1182 Otherwise, rw-whitelist is checked'''
1184 if not hasattr(supported_formats
, "formats"):
1185 supported_formats
.formats
= {}
1187 if read_only
not in supported_formats
.formats
:
1188 format_message
= qemu_pipe("-drive", "format=help")
1189 line
= 1 if read_only
else 0
1190 supported_formats
.formats
[read_only
] = \
1191 format_message
.splitlines()[line
].split(":")[1].split()
1193 return supported_formats
.formats
[read_only
]
1195 def skip_if_unsupported(required_formats
=(), read_only
=False):
1196 '''Skip Test Decorator
1197 Runs the test if all the required formats are whitelisted'''
1198 def skip_test_decorator(func
):
1199 def func_wrapper(test_case
: QMPTestCase
, *args
: List
[Any
],
1200 **kwargs
: Dict
[str, Any
]) -> None:
1201 if callable(required_formats
):
1202 fmts
= required_formats(test_case
)
1204 fmts
= required_formats
1206 usf_list
= list(set(fmts
) - set(supported_formats(read_only
)))
1208 msg
= f
'{test_case}: formats {usf_list} are not whitelisted'
1209 test_case
.case_skip(msg
)
1211 func(test_case
, *args
, **kwargs
)
1213 return skip_test_decorator
1215 def skip_for_formats(formats
: Sequence
[str] = ()) \
1216 -> Callable
[[Callable
[[QMPTestCase
, List
[Any
], Dict
[str, Any
]], None]],
1217 Callable
[[QMPTestCase
, List
[Any
], Dict
[str, Any
]], None]]:
1218 '''Skip Test Decorator
1219 Skips the test for the given formats'''
1220 def skip_test_decorator(func
):
1221 def func_wrapper(test_case
: QMPTestCase
, *args
: List
[Any
],
1222 **kwargs
: Dict
[str, Any
]) -> None:
1223 if imgfmt
in formats
:
1224 msg
= f
'{test_case}: Skipped for format {imgfmt}'
1225 test_case
.case_skip(msg
)
1227 func(test_case
, *args
, **kwargs
)
1229 return skip_test_decorator
1231 def skip_if_user_is_root(func
):
1232 '''Skip Test Decorator
1233 Runs the test only without root permissions'''
1234 def func_wrapper(*args
, **kwargs
):
1235 if os
.getuid() == 0:
1236 case_notrun('{}: cannot be run as root'.format(args
[0]))
1239 return func(*args
, **kwargs
)
1242 def execute_unittest(debug
=False):
1243 """Executes unittests within the calling module."""
1245 verbosity
= 2 if debug
else 1
1250 # We need to filter out the time taken from the output so that
1251 # qemu-iotest can reliably diff the results against master output.
1252 output
= io
.StringIO()
1254 runner
= unittest
.TextTestRunner(stream
=output
, descriptions
=True,
1255 verbosity
=verbosity
)
1257 # unittest.main() will use sys.exit(); so expect a SystemExit
1259 unittest
.main(testRunner
=runner
)
1261 # We need to filter out the time taken from the output so that
1262 # qemu-iotest can reliably diff the results against master output.
1264 out
= output
.getvalue()
1265 out
= re
.sub(r
'Ran (\d+) tests? in [\d.]+s', r
'Ran \1 tests', out
)
1267 # Hide skipped tests from the reference output
1268 out
= re
.sub(r
'OK \(skipped=\d+\)', 'OK', out
)
1269 out_first_line
, out_rest
= out
.split('\n', 1)
1270 out
= out_first_line
.replace('s', '.') + '\n' + out_rest
1272 sys
.stderr
.write(out
)
1274 def execute_setup_common(supported_fmts
: Sequence
[str] = (),
1275 supported_platforms
: Sequence
[str] = (),
1276 supported_cache_modes
: Sequence
[str] = (),
1277 supported_aio_modes
: Sequence
[str] = (),
1278 unsupported_fmts
: Sequence
[str] = (),
1279 supported_protocols
: Sequence
[str] = (),
1280 unsupported_protocols
: Sequence
[str] = (),
1281 required_fmts
: Sequence
[str] = ()) -> bool:
1283 Perform necessary setup for either script-style or unittest-style tests.
1285 :return: Bool; Whether or not debug mode has been requested via the CLI.
1287 # Note: Python 3.6 and pylint do not like 'Collection' so use 'Sequence'.
1289 # We are using TEST_DIR and QEMU_DEFAULT_MACHINE as proxies to
1290 # indicate that we're not being run via "check". There may be
1291 # other things set up by "check" that individual test cases rely
1293 if test_dir
is None or qemu_default_machine
is None:
1294 sys
.stderr
.write('Please run this test via the "check" script\n')
1295 sys
.exit(os
.EX_USAGE
)
1297 debug
= '-d' in sys
.argv
1299 sys
.argv
.remove('-d')
1300 logging
.basicConfig(level
=(logging
.DEBUG
if debug
else logging
.WARN
))
1302 _verify_image_format(supported_fmts
, unsupported_fmts
)
1303 _verify_protocol(supported_protocols
, unsupported_protocols
)
1304 _verify_platform(supported
=supported_platforms
)
1305 _verify_cache_mode(supported_cache_modes
)
1306 _verify_aio_mode(supported_aio_modes
)
1307 _verify_formats(required_fmts
)
1311 def execute_test(*args
, test_function
=None, **kwargs
):
1312 """Run either unittest or script-style tests."""
1314 debug
= execute_setup_common(*args
, **kwargs
)
1315 if not test_function
:
1316 execute_unittest(debug
)
1320 def activate_logging():
1321 """Activate iotests.log() output to stdout for script-style tests."""
1322 handler
= logging
.StreamHandler(stream
=sys
.stdout
)
1323 formatter
= logging
.Formatter('%(message)s')
1324 handler
.setFormatter(formatter
)
1325 test_logger
.addHandler(handler
)
1326 test_logger
.setLevel(logging
.INFO
)
1327 test_logger
.propagate
= False
1329 # This is called from script-style iotests without a single point of entry
1330 def script_initialize(*args
, **kwargs
):
1331 """Initialize script-style tests without running any tests."""
1333 execute_setup_common(*args
, **kwargs
)
1335 # This is called from script-style iotests with a single point of entry
1336 def script_main(test_function
, *args
, **kwargs
):
1337 """Run script-style tests outside of the unittest framework"""
1339 execute_test(*args
, test_function
=test_function
, **kwargs
)
1341 # This is called from unittest style iotests
1342 def main(*args
, **kwargs
):
1343 """Run tests using the unittest framework"""
1344 execute_test(*args
, **kwargs
)