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/>.
21 from collections
import OrderedDict
34 from typing
import (Any
, Callable
, Dict
, Iterable
,
35 List
, Optional
, Sequence
, Tuple
, TypeVar
)
38 from contextlib
import contextmanager
40 # pylint: disable=import-error, wrong-import-position
41 sys
.path
.append(os
.path
.join(os
.path
.dirname(__file__
), '..', '..', 'python'))
42 from qemu
import qtest
43 from qemu
.qmp
import QMPMessage
45 # Use this logger for logging messages directly from the iotests module
46 logger
= logging
.getLogger('qemu.iotests')
47 logger
.addHandler(logging
.NullHandler())
49 # Use this logger for messages that ought to be used for diff output.
50 test_logger
= logging
.getLogger('qemu.iotests.diff_io')
55 # This will not work if arguments contain spaces but is necessary if we
56 # want to support the override options that ./check supports.
57 qemu_img_args
= [os
.environ
.get('QEMU_IMG_PROG', 'qemu-img')]
58 if os
.environ
.get('QEMU_IMG_OPTIONS'):
59 qemu_img_args
+= os
.environ
['QEMU_IMG_OPTIONS'].strip().split(' ')
61 qemu_io_args
= [os
.environ
.get('QEMU_IO_PROG', 'qemu-io')]
62 if os
.environ
.get('QEMU_IO_OPTIONS'):
63 qemu_io_args
+= os
.environ
['QEMU_IO_OPTIONS'].strip().split(' ')
65 qemu_io_args_no_fmt
= [os
.environ
.get('QEMU_IO_PROG', 'qemu-io')]
66 if os
.environ
.get('QEMU_IO_OPTIONS_NO_FMT'):
67 qemu_io_args_no_fmt
+= \
68 os
.environ
['QEMU_IO_OPTIONS_NO_FMT'].strip().split(' ')
70 qemu_nbd_prog
= os
.environ
.get('QEMU_NBD_PROG', 'qemu-nbd')
71 qemu_nbd_args
= [qemu_nbd_prog
]
72 if os
.environ
.get('QEMU_NBD_OPTIONS'):
73 qemu_nbd_args
+= os
.environ
['QEMU_NBD_OPTIONS'].strip().split(' ')
75 qemu_prog
= os
.environ
.get('QEMU_PROG', 'qemu')
76 qemu_opts
= os
.environ
.get('QEMU_OPTIONS', '').strip().split(' ')
78 imgfmt
= os
.environ
.get('IMGFMT', 'raw')
79 imgproto
= os
.environ
.get('IMGPROTO', 'file')
80 output_dir
= os
.environ
.get('OUTPUT_DIR', '.')
83 test_dir
= os
.environ
['TEST_DIR']
84 sock_dir
= os
.environ
['SOCK_DIR']
85 cachemode
= os
.environ
['CACHEMODE']
86 aiomode
= os
.environ
['AIOMODE']
87 qemu_default_machine
= os
.environ
['QEMU_DEFAULT_MACHINE']
89 # We are using these variables as proxies to indicate that we're
90 # not being run via "check". There may be other things set up by
91 # "check" that individual test cases rely on.
92 sys
.stderr
.write('Please run this test via the "check" script\n')
95 socket_scm_helper
= os
.environ
.get('SOCKET_SCM_HELPER', 'socket_scm_helper')
97 luks_default_secret_object
= 'secret,id=keysec0,data=' + \
98 os
.environ
.get('IMGKEYSECRET', '')
99 luks_default_key_secret_opt
= 'key-secret=keysec0'
101 sample_img_dir
= os
.environ
['SAMPLE_IMG_DIR']
104 def unarchive_sample_image(sample
, fname
):
105 sample_fname
= os
.path
.join(sample_img_dir
, sample
+ '.bz2')
106 with bz2
.open(sample_fname
) as f_in
, open(fname
, 'wb') as f_out
:
107 shutil
.copyfileobj(f_in
, f_out
)
110 def qemu_tool_pipe_and_status(tool
: str, args
: Sequence
[str],
111 connect_stderr
: bool = True) -> Tuple
[str, int]:
113 Run a tool and return both its output and its exit code
115 stderr
= subprocess
.STDOUT
if connect_stderr
else None
116 subp
= subprocess
.Popen(args
,
117 stdout
=subprocess
.PIPE
,
119 universal_newlines
=True)
120 output
= subp
.communicate()[0]
121 if subp
.returncode
< 0:
123 sys
.stderr
.write(f
'{tool} received signal {-subp.returncode}: {cmd}\n')
124 return (output
, subp
.returncode
)
126 def qemu_img_pipe_and_status(*args
: str) -> Tuple
[str, int]:
128 Run qemu-img and return both its output and its exit code
130 full_args
= qemu_img_args
+ list(args
)
131 return qemu_tool_pipe_and_status('qemu-img', full_args
)
133 def qemu_img(*args
: str) -> int:
134 '''Run qemu-img and return the exit code'''
135 return qemu_img_pipe_and_status(*args
)[1]
137 def ordered_qmp(qmsg
, conv_keys
=True):
138 # Dictionaries are not ordered prior to 3.6, therefore:
139 if isinstance(qmsg
, list):
140 return [ordered_qmp(atom
) for atom
in qmsg
]
141 if isinstance(qmsg
, dict):
143 for k
, v
in sorted(qmsg
.items()):
145 k
= k
.replace('_', '-')
146 od
[k
] = ordered_qmp(v
, conv_keys
=False)
150 def qemu_img_create(*args
):
153 # default luks support
154 if '-f' in args
and args
[args
.index('-f') + 1] == 'luks':
157 if 'key-secret' not in args
[i
+ 1]:
158 args
[i
+ 1].append(luks_default_key_secret_opt
)
159 args
.insert(i
+ 2, '--object')
160 args
.insert(i
+ 3, luks_default_secret_object
)
162 args
= ['-o', luks_default_key_secret_opt
,
163 '--object', luks_default_secret_object
] + args
165 args
.insert(0, 'create')
167 return qemu_img(*args
)
169 def qemu_img_measure(*args
):
170 return json
.loads(qemu_img_pipe("measure", "--output", "json", *args
))
172 def qemu_img_check(*args
):
173 return json
.loads(qemu_img_pipe("check", "--output", "json", *args
))
175 def qemu_img_verbose(*args
):
176 '''Run qemu-img without suppressing its output and return the exit code'''
177 exitcode
= subprocess
.call(qemu_img_args
+ list(args
))
179 sys
.stderr
.write('qemu-img received signal %i: %s\n'
180 % (-exitcode
, ' '.join(qemu_img_args
+ list(args
))))
183 def qemu_img_pipe(*args
: str) -> str:
184 '''Run qemu-img and return its output'''
185 return qemu_img_pipe_and_status(*args
)[0]
187 def qemu_img_log(*args
):
188 result
= qemu_img_pipe(*args
)
189 log(result
, filters
=[filter_testfiles
])
192 def img_info_log(filename
, filter_path
=None, imgopts
=False, extra_args
=()):
195 args
.append('--image-opts')
197 args
+= ['-f', imgfmt
]
199 args
.append(filename
)
201 output
= qemu_img_pipe(*args
)
203 filter_path
= filename
204 log(filter_img_info(output
, filter_path
))
207 '''Run qemu-io and return the stdout data'''
208 args
= qemu_io_args
+ list(args
)
209 return qemu_tool_pipe_and_status('qemu-io', args
)[0]
211 def qemu_io_log(*args
):
212 result
= qemu_io(*args
)
213 log(result
, filters
=[filter_testfiles
, filter_qemu_io
])
216 def qemu_io_silent(*args
):
217 '''Run qemu-io and return the exit code, suppressing stdout'''
218 if '-f' in args
or '--image-opts' in args
:
219 default_args
= qemu_io_args_no_fmt
221 default_args
= qemu_io_args
223 args
= default_args
+ list(args
)
224 exitcode
= subprocess
.call(args
, stdout
=open('/dev/null', 'w'))
226 sys
.stderr
.write('qemu-io received signal %i: %s\n' %
227 (-exitcode
, ' '.join(args
)))
230 def qemu_io_silent_check(*args
):
231 '''Run qemu-io and return the true if subprocess returned 0'''
232 args
= qemu_io_args
+ list(args
)
233 exitcode
= subprocess
.call(args
, stdout
=open('/dev/null', 'w'),
234 stderr
=subprocess
.STDOUT
)
237 def get_virtio_scsi_device():
238 if qemu_default_machine
== 's390-ccw-virtio':
239 return 'virtio-scsi-ccw'
240 return 'virtio-scsi-pci'
242 class QemuIoInteractive
:
243 def __init__(self
, *args
):
244 self
.args
= qemu_io_args_no_fmt
+ list(args
)
245 self
._p
= subprocess
.Popen(self
.args
, stdin
=subprocess
.PIPE
,
246 stdout
=subprocess
.PIPE
,
247 stderr
=subprocess
.STDOUT
,
248 universal_newlines
=True)
249 out
= self
._p
.stdout
.read(9)
250 if out
!= 'qemu-io> ':
251 # Most probably qemu-io just failed to start.
252 # Let's collect the whole output and exit.
253 out
+= self
._p
.stdout
.read()
254 self
._p
.wait(timeout
=1)
255 raise ValueError(out
)
258 self
._p
.communicate('q\n')
260 def _read_output(self
):
261 pattern
= 'qemu-io> '
266 c
= self
._p
.stdout
.read(1)
267 # check unexpected EOF
270 if c
== pattern
[pos
]:
275 return ''.join(s
[:-n
])
278 # quit command is in close(), '\n' is added automatically
279 assert '\n' not in cmd
281 assert cmd
not in ('q', 'quit')
282 self
._p
.stdin
.write(cmd
+ '\n')
283 self
._p
.stdin
.flush()
284 return self
._read
_output
()
288 '''Run qemu-nbd in daemon mode and return the parent's exit code'''
289 return subprocess
.call(qemu_nbd_args
+ ['--fork'] + list(args
))
291 def qemu_nbd_early_pipe(*args
: str) -> Tuple
[int, str]:
292 '''Run qemu-nbd in daemon mode and return both the parent's exit code
293 and its output in case of an error'''
294 full_args
= qemu_nbd_args
+ ['--fork'] + list(args
)
295 output
, returncode
= qemu_tool_pipe_and_status('qemu-nbd', full_args
,
296 connect_stderr
=False)
297 return returncode
, output
if returncode
else ''
299 def qemu_nbd_list_log(*args
: str) -> str:
300 '''Run qemu-nbd to list remote exports'''
301 full_args
= [qemu_nbd_prog
, '-L'] + list(args
)
302 output
, _
= qemu_tool_pipe_and_status('qemu-nbd', full_args
)
303 log(output
, filters
=[filter_testfiles
, filter_nbd_exports
])
307 def qemu_nbd_popen(*args
):
308 '''Context manager running qemu-nbd within the context'''
309 pid_file
= file_path("qemu_nbd_popen-nbd-pid-file")
311 assert not os
.path
.exists(pid_file
)
313 cmd
= list(qemu_nbd_args
)
314 cmd
.extend(('--persistent', '--pid-file', pid_file
))
317 log('Start NBD server')
318 p
= subprocess
.Popen(cmd
)
320 while not os
.path
.exists(pid_file
):
321 if p
.poll() is not None:
323 "qemu-nbd terminated with exit code {}: {}"
324 .format(p
.returncode
, ' '.join(cmd
)))
329 if os
.path
.exists(pid_file
):
331 log('Kill NBD server')
335 def compare_images(img1
, img2
, fmt1
=imgfmt
, fmt2
=imgfmt
):
336 '''Return True if two image files are identical'''
337 return qemu_img('compare', '-f', fmt1
,
338 '-F', fmt2
, img1
, img2
) == 0
340 def create_image(name
, size
):
341 '''Create a fully-allocated raw image with sector markers'''
342 file = open(name
, 'wb')
345 sector
= struct
.pack('>l504xl', i
// 512, i
// 512)
351 '''Return image's virtual size'''
352 r
= qemu_img_pipe('info', '--output=json', '-f', imgfmt
, img
)
353 return json
.loads(r
)['virtual-size']
356 return isinstance(val
, str)
358 test_dir_re
= re
.compile(r
"%s" % test_dir
)
359 def filter_test_dir(msg
):
360 return test_dir_re
.sub("TEST_DIR", msg
)
362 win32_re
= re
.compile(r
"\r")
363 def filter_win32(msg
):
364 return win32_re
.sub("", msg
)
366 qemu_io_re
= re
.compile(r
"[0-9]* ops; [0-9\/:. sec]* "
367 r
"\([0-9\/.inf]* [EPTGMKiBbytes]*\/sec "
368 r
"and [0-9\/.inf]* ops\/sec\)")
369 def filter_qemu_io(msg
):
370 msg
= filter_win32(msg
)
371 return qemu_io_re
.sub("X ops; XX:XX:XX.X "
372 "(XXX YYY/sec and XXX ops/sec)", msg
)
374 chown_re
= re
.compile(r
"chown [0-9]+:[0-9]+")
375 def filter_chown(msg
):
376 return chown_re
.sub("chown UID:GID", msg
)
378 def filter_qmp_event(event
):
379 '''Filter a QMP event dict'''
381 if 'timestamp' in event
:
382 event
['timestamp']['seconds'] = 'SECS'
383 event
['timestamp']['microseconds'] = 'USECS'
386 def filter_qmp(qmsg
, filter_fn
):
387 '''Given a string filter, filter a QMP object's values.
388 filter_fn takes a (key, value) pair.'''
389 # Iterate through either lists or dicts;
390 if isinstance(qmsg
, list):
391 items
= enumerate(qmsg
)
396 if isinstance(v
, (dict, list)):
397 qmsg
[k
] = filter_qmp(v
, filter_fn
)
399 qmsg
[k
] = filter_fn(k
, v
)
402 def filter_testfiles(msg
):
403 pref1
= os
.path
.join(test_dir
, "%s-" % (os
.getpid()))
404 pref2
= os
.path
.join(sock_dir
, "%s-" % (os
.getpid()))
405 return msg
.replace(pref1
, 'TEST_DIR/PID-').replace(pref2
, 'SOCK_DIR/PID-')
407 def filter_qmp_testfiles(qmsg
):
408 def _filter(_key
, value
):
410 return filter_testfiles(value
)
412 return filter_qmp(qmsg
, _filter
)
414 def filter_virtio_scsi(output
: str) -> str:
415 return re
.sub(r
'(virtio-scsi)-(ccw|pci)', r
'\1', output
)
417 def filter_qmp_virtio_scsi(qmsg
):
418 def _filter(_key
, value
):
420 return filter_virtio_scsi(value
)
422 return filter_qmp(qmsg
, _filter
)
424 def filter_generated_node_ids(msg
):
425 return re
.sub("#block[0-9]+", "NODE_NAME", msg
)
427 def filter_img_info(output
, filename
):
429 for line
in output
.split('\n'):
430 if 'disk size' in line
or 'actual-size' in line
:
432 line
= line
.replace(filename
, 'TEST_IMG')
433 line
= filter_testfiles(line
)
434 line
= line
.replace(imgfmt
, 'IMGFMT')
435 line
= re
.sub('iters: [0-9]+', 'iters: XXX', line
)
436 line
= re
.sub('uuid: [-a-f0-9]+',
437 'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX',
439 line
= re
.sub('cid: [0-9]+', 'cid: XXXXXXXXXX', line
)
441 return '\n'.join(lines
)
443 def filter_imgfmt(msg
):
444 return msg
.replace(imgfmt
, 'IMGFMT')
446 def filter_qmp_imgfmt(qmsg
):
447 def _filter(_key
, value
):
449 return filter_imgfmt(value
)
451 return filter_qmp(qmsg
, _filter
)
453 def filter_nbd_exports(output
: str) -> str:
454 return re
.sub(r
'((min|opt|max) block): [0-9]+', r
'\1: XXX', output
)
457 Msg
= TypeVar('Msg', Dict
[str, Any
], List
[Any
], str)
460 filters
: Iterable
[Callable
[[Msg
], Msg
]] = (),
461 indent
: Optional
[int] = None) -> None:
463 Logs either a string message or a JSON serializable message (like QMP).
464 If indent is provided, JSON serializable messages are pretty-printed.
468 if isinstance(msg
, (dict, list)):
469 # Don't sort if it's already sorted
470 do_sort
= not isinstance(msg
, OrderedDict
)
471 test_logger
.info(json
.dumps(msg
, sort_keys
=do_sort
, indent
=indent
))
473 test_logger
.info(msg
)
476 def __init__(self
, seconds
, errmsg
="Timeout"):
477 self
.seconds
= seconds
480 signal
.signal(signal
.SIGALRM
, self
.timeout
)
481 signal
.setitimer(signal
.ITIMER_REAL
, self
.seconds
)
483 def __exit__(self
, exc_type
, value
, traceback
):
484 signal
.setitimer(signal
.ITIMER_REAL
, 0)
486 def timeout(self
, signum
, frame
):
487 raise Exception(self
.errmsg
)
489 def file_pattern(name
):
490 return "{0}-{1}".format(os
.getpid(), name
)
494 Context manager generating multiple file names. The generated files are
495 removed when exiting the context.
499 with FilePath('a.img', 'b.img') as (img_a, img_b):
500 # Use img_a and img_b here...
502 # a.img and b.img are automatically removed here.
504 By default images are created in iotests.test_dir. To create sockets use
507 with FilePath('a.sock', base_dir=iotests.sock_dir) as sock:
509 For convenience, calling with one argument yields a single file instead of
510 a tuple with one item.
513 def __init__(self
, *names
, base_dir
=test_dir
):
514 self
.paths
= [os
.path
.join(base_dir
, file_pattern(name
))
518 if len(self
.paths
) == 1:
523 def __exit__(self
, exc_type
, exc_val
, exc_tb
):
524 for path
in self
.paths
:
538 def file_path_remover():
539 for path
in reversed(file_path_remover
.paths
):
543 def file_path(*names
, base_dir
=test_dir
):
544 ''' Another way to get auto-generated filename that cleans itself up.
548 img_a, img_b = file_path('a.img', 'b.img')
549 sock = file_path('socket')
552 if not hasattr(file_path_remover
, 'paths'):
553 file_path_remover
.paths
= []
554 atexit
.register(file_path_remover
)
558 filename
= file_pattern(name
)
559 path
= os
.path
.join(base_dir
, filename
)
560 file_path_remover
.paths
.append(path
)
563 return paths
[0] if len(paths
) == 1 else paths
565 def remote_filename(path
):
566 if imgproto
== 'file':
568 elif imgproto
== 'ssh':
569 return "ssh://%s@127.0.0.1:22%s" % (os
.environ
.get('USER'), path
)
571 raise Exception("Protocol %s not supported" % (imgproto
))
573 class VM(qtest
.QEMUQtestMachine
):
576 def __init__(self
, path_suffix
=''):
577 name
= "qemu%s-%d" % (path_suffix
, os
.getpid())
578 super().__init
__(qemu_prog
, qemu_opts
, name
=name
,
580 socket_scm_helper
=socket_scm_helper
,
584 def add_object(self
, opts
):
585 self
._args
.append('-object')
586 self
._args
.append(opts
)
589 def add_device(self
, opts
):
590 self
._args
.append('-device')
591 self
._args
.append(opts
)
594 def add_drive_raw(self
, opts
):
595 self
._args
.append('-drive')
596 self
._args
.append(opts
)
599 def add_drive(self
, path
, opts
='', interface
='virtio', img_format
=imgfmt
):
600 '''Add a virtio-blk drive to the VM'''
601 options
= ['if=%s' % interface
,
602 'id=drive%d' % self
._num
_drives
]
605 options
.append('file=%s' % path
)
606 options
.append('format=%s' % img_format
)
607 options
.append('cache=%s' % cachemode
)
608 options
.append('aio=%s' % aiomode
)
613 if img_format
== 'luks' and 'key-secret' not in opts
:
614 # default luks support
615 if luks_default_secret_object
not in self
._args
:
616 self
.add_object(luks_default_secret_object
)
618 options
.append(luks_default_key_secret_opt
)
620 self
._args
.append('-drive')
621 self
._args
.append(','.join(options
))
622 self
._num
_drives
+= 1
625 def add_blockdev(self
, opts
):
626 self
._args
.append('-blockdev')
627 if isinstance(opts
, str):
628 self
._args
.append(opts
)
630 self
._args
.append(','.join(opts
))
633 def add_incoming(self
, addr
):
634 self
._args
.append('-incoming')
635 self
._args
.append(addr
)
638 def hmp(self
, command_line
: str, use_log
: bool = False) -> QMPMessage
:
639 cmd
= 'human-monitor-command'
640 kwargs
: Dict
[str, Any
] = {'command-line': command_line
}
642 return self
.qmp_log(cmd
, **kwargs
)
644 return self
.qmp(cmd
, **kwargs
)
646 def pause_drive(self
, drive
: str, event
: Optional
[str] = None) -> None:
647 """Pause drive r/w operations"""
649 self
.pause_drive(drive
, "read_aio")
650 self
.pause_drive(drive
, "write_aio")
652 self
.hmp(f
'qemu-io {drive} "break {event} bp_{drive}"')
654 def resume_drive(self
, drive
: str) -> None:
655 """Resume drive r/w operations"""
656 self
.hmp(f
'qemu-io {drive} "remove_break bp_{drive}"')
658 def hmp_qemu_io(self
, drive
: str, cmd
: str,
659 use_log
: bool = False) -> QMPMessage
:
660 """Write to a given drive using an HMP command"""
661 return self
.hmp(f
'qemu-io {drive} "{cmd}"', use_log
=use_log
)
663 def flatten_qmp_object(self
, obj
, output
=None, basestr
=''):
666 if isinstance(obj
, list):
667 for i
, item
in enumerate(obj
):
668 self
.flatten_qmp_object(item
, output
, basestr
+ str(i
) + '.')
669 elif isinstance(obj
, dict):
671 self
.flatten_qmp_object(obj
[key
], output
, basestr
+ key
+ '.')
673 output
[basestr
[:-1]] = obj
# Strip trailing '.'
676 def qmp_to_opts(self
, obj
):
677 obj
= self
.flatten_qmp_object(obj
)
680 output_list
+= [key
+ '=' + obj
[key
]]
681 return ','.join(output_list
)
683 def get_qmp_events_filtered(self
, wait
=60.0):
685 for ev
in self
.get_qmp_events(wait
=wait
):
686 result
.append(filter_qmp_event(ev
))
689 def qmp_log(self
, cmd
, filters
=(), indent
=None, **kwargs
):
690 full_cmd
= OrderedDict((
692 ("arguments", ordered_qmp(kwargs
))
694 log(full_cmd
, filters
, indent
=indent
)
695 result
= self
.qmp(cmd
, **kwargs
)
696 log(result
, filters
, indent
=indent
)
699 # Returns None on success, and an error string on failure
700 def run_job(self
, job
, auto_finalize
=True, auto_dismiss
=False,
701 pre_finalize
=None, cancel
=False, wait
=60.0):
703 run_job moves a job from creation through to dismissal.
705 :param job: String. ID of recently-launched job
706 :param auto_finalize: Bool. True if the job was launched with
707 auto_finalize. Defaults to True.
708 :param auto_dismiss: Bool. True if the job was launched with
709 auto_dismiss=True. Defaults to False.
710 :param pre_finalize: Callback. A callable that takes no arguments to be
711 invoked prior to issuing job-finalize, if any.
712 :param cancel: Bool. When true, cancels the job after the pre_finalize
714 :param wait: Float. Timeout value specifying how long to wait for any
715 event, in seconds. Defaults to 60.0.
717 match_device
= {'data': {'device': job
}}
718 match_id
= {'data': {'id': job
}}
720 ('BLOCK_JOB_COMPLETED', match_device
),
721 ('BLOCK_JOB_CANCELLED', match_device
),
722 ('BLOCK_JOB_ERROR', match_device
),
723 ('BLOCK_JOB_READY', match_device
),
724 ('BLOCK_JOB_PENDING', match_id
),
725 ('JOB_STATUS_CHANGE', match_id
)
729 ev
= filter_qmp_event(self
.events_wait(events
, timeout
=wait
))
730 if ev
['event'] != 'JOB_STATUS_CHANGE':
733 status
= ev
['data']['status']
734 if status
== 'aborting':
735 result
= self
.qmp('query-jobs')
736 for j
in result
['return']:
739 log('Job failed: %s' % (j
['error']))
740 elif status
== 'ready':
741 self
.qmp_log('job-complete', id=job
)
742 elif status
== 'pending' and not auto_finalize
:
746 self
.qmp_log('job-cancel', id=job
)
748 self
.qmp_log('job-finalize', id=job
)
749 elif status
== 'concluded' and not auto_dismiss
:
750 self
.qmp_log('job-dismiss', id=job
)
751 elif status
== 'null':
754 # Returns None on success, and an error string on failure
755 def blockdev_create(self
, options
, job_id
='job0', filters
=None):
757 filters
= [filter_qmp_testfiles
]
758 result
= self
.qmp_log('blockdev-create', filters
=filters
,
759 job_id
=job_id
, options
=options
)
761 if 'return' in result
:
762 assert result
['return'] == {}
763 job_result
= self
.run_job(job_id
)
765 job_result
= result
['error']
770 def enable_migration_events(self
, name
):
771 log('Enabling migration QMP events on %s...' % name
)
772 log(self
.qmp('migrate-set-capabilities', capabilities
=[
774 'capability': 'events',
779 def wait_migration(self
, expect_runstate
: Optional
[str]) -> bool:
781 event
= self
.event_wait('MIGRATION')
782 # We use the default timeout, and with a timeout, event_wait()
786 log(event
, filters
=[filter_qmp_event
])
787 if event
['data']['status'] in ('completed', 'failed'):
790 if event
['data']['status'] == 'completed':
791 # The event may occur in finish-migrate, so wait for the expected
792 # post-migration runstate
794 while runstate
!= expect_runstate
:
795 runstate
= self
.qmp('query-status')['return']['status']
800 def node_info(self
, node_name
):
801 nodes
= self
.qmp('query-named-block-nodes')
802 for x
in nodes
['return']:
803 if x
['node-name'] == node_name
:
807 def query_bitmaps(self
):
808 res
= self
.qmp("query-named-block-nodes")
809 return {device
['node-name']: device
['dirty-bitmaps']
810 for device
in res
['return'] if 'dirty-bitmaps' in device
}
812 def get_bitmap(self
, node_name
, bitmap_name
, recording
=None, bitmaps
=None):
814 get a specific bitmap from the object returned by query_bitmaps.
815 :param recording: If specified, filter results by the specified value.
816 :param bitmaps: If specified, use it instead of call query_bitmaps()
819 bitmaps
= self
.query_bitmaps()
821 for bitmap
in bitmaps
[node_name
]:
822 if bitmap
.get('name', '') == bitmap_name
:
823 if recording
is None or bitmap
.get('recording') == recording
:
827 def check_bitmap_status(self
, node_name
, bitmap_name
, fields
):
828 ret
= self
.get_bitmap(node_name
, bitmap_name
)
830 return fields
.items() <= ret
.items()
832 def assert_block_path(self
, root
, path
, expected_node
, graph
=None):
834 Check whether the node under the given path in the block graph
837 @root is the node name of the node where the @path is rooted.
839 @path is a string that consists of child names separated by
840 slashes. It must begin with a slash.
842 Examples for @root + @path:
843 - root="qcow2-node", path="/backing/file"
844 - root="quorum-node", path="/children.2/file"
846 Hypothetically, @path could be empty, in which case it would
847 point to @root. However, in practice this case is not useful
848 and hence not allowed.
850 @expected_node may be None. (All elements of the path but the
851 leaf must still exist.)
853 @graph may be None or the result of an x-debug-query-block-graph
854 call that has already been performed.
857 graph
= self
.qmp('x-debug-query-block-graph')['return']
859 iter_path
= iter(path
.split('/'))
861 # Must start with a /
862 assert next(iter_path
) == ''
864 node
= next((node
for node
in graph
['nodes'] if node
['name'] == root
),
867 # An empty @path is not allowed, so the root node must be present
868 assert node
is not None, 'Root node %s not found' % root
870 for child_name
in iter_path
:
871 assert node
is not None, 'Cannot follow path %s%s' % (root
, path
)
874 node_id
= next(edge
['child'] for edge
in graph
['edges']
875 if (edge
['parent'] == node
['id'] and
876 edge
['name'] == child_name
))
878 node
= next(node
for node
in graph
['nodes']
879 if node
['id'] == node_id
)
881 except StopIteration:
885 assert expected_node
is None, \
886 'No node found under %s (but expected %s)' % \
887 (path
, expected_node
)
889 assert node
['name'] == expected_node
, \
890 'Found node %s under %s (but expected %s)' % \
891 (node
['name'], path
, expected_node
)
893 index_re
= re
.compile(r
'([^\[]+)\[([^\]]+)\]')
895 class QMPTestCase(unittest
.TestCase
):
896 '''Abstract base class for QMP test cases'''
898 def __init__(self
, *args
, **kwargs
):
899 super().__init
__(*args
, **kwargs
)
900 # Many users of this class set a VM property we rely on heavily
901 # in the methods below.
904 def dictpath(self
, d
, path
):
905 '''Traverse a path in a nested dict'''
906 for component
in path
.split('/'):
907 m
= index_re
.match(component
)
909 component
, idx
= m
.groups()
912 if not isinstance(d
, dict) or component
not in d
:
913 self
.fail(f
'failed path traversal for "{path}" in "{d}"')
917 if not isinstance(d
, list):
918 self
.fail(f
'path component "{component}" in "{path}" '
919 f
'is not a list in "{d}"')
923 self
.fail(f
'invalid index "{idx}" in path "{path}" '
927 def assert_qmp_absent(self
, d
, path
):
929 result
= self
.dictpath(d
, path
)
930 except AssertionError:
932 self
.fail('path "%s" has value "%s"' % (path
, str(result
)))
934 def assert_qmp(self
, d
, path
, value
):
935 '''Assert that the value for a specific path in a QMP dict
936 matches. When given a list of values, assert that any of
939 result
= self
.dictpath(d
, path
)
941 # [] makes no sense as a list of valid values, so treat it as
942 # an actual single value.
943 if isinstance(value
, list) and value
!= []:
947 self
.fail('no match for "%s" in %s' % (str(result
), str(value
)))
949 self
.assertEqual(result
, value
,
950 '"%s" is "%s", expected "%s"'
951 % (path
, str(result
), str(value
)))
953 def assert_no_active_block_jobs(self
):
954 result
= self
.vm
.qmp('query-block-jobs')
955 self
.assert_qmp(result
, 'return', [])
957 def assert_has_block_node(self
, node_name
=None, file_name
=None):
958 """Issue a query-named-block-nodes and assert node_name and/or
959 file_name is present in the result"""
960 def check_equal_or_none(a
, b
):
961 return a
is None or b
is None or a
== b
962 assert node_name
or file_name
963 result
= self
.vm
.qmp('query-named-block-nodes')
964 for x
in result
["return"]:
965 if check_equal_or_none(x
.get("node-name"), node_name
) and \
966 check_equal_or_none(x
.get("file"), file_name
):
968 self
.fail("Cannot find %s %s in result:\n%s" %
969 (node_name
, file_name
, result
))
971 def assert_json_filename_equal(self
, json_filename
, reference
):
972 '''Asserts that the given filename is a json: filename and that its
973 content is equal to the given reference object'''
974 self
.assertEqual(json_filename
[:5], 'json:')
976 self
.vm
.flatten_qmp_object(json
.loads(json_filename
[5:])),
977 self
.vm
.flatten_qmp_object(reference
)
980 def cancel_and_wait(self
, drive
='drive0', force
=False,
981 resume
=False, wait
=60.0):
982 '''Cancel a block job and wait for it to finish, returning the event'''
983 result
= self
.vm
.qmp('block-job-cancel', device
=drive
, force
=force
)
984 self
.assert_qmp(result
, 'return', {})
987 self
.vm
.resume_drive(drive
)
992 for event
in self
.vm
.get_qmp_events(wait
=wait
):
993 if event
['event'] == 'BLOCK_JOB_COMPLETED' or \
994 event
['event'] == 'BLOCK_JOB_CANCELLED':
995 self
.assert_qmp(event
, 'data/device', drive
)
998 elif event
['event'] == 'JOB_STATUS_CHANGE':
999 self
.assert_qmp(event
, 'data/id', drive
)
1002 self
.assert_no_active_block_jobs()
1005 def wait_until_completed(self
, drive
='drive0', check_offset
=True,
1006 wait
=60.0, error
=None):
1007 '''Wait for a block job to finish, returning the event'''
1009 for event
in self
.vm
.get_qmp_events(wait
=wait
):
1010 if event
['event'] == 'BLOCK_JOB_COMPLETED':
1011 self
.assert_qmp(event
, 'data/device', drive
)
1013 self
.assert_qmp_absent(event
, 'data/error')
1015 self
.assert_qmp(event
, 'data/offset',
1016 event
['data']['len'])
1018 self
.assert_qmp(event
, 'data/error', error
)
1019 self
.assert_no_active_block_jobs()
1021 if event
['event'] == 'JOB_STATUS_CHANGE':
1022 self
.assert_qmp(event
, 'data/id', drive
)
1024 def wait_ready(self
, drive
='drive0'):
1025 """Wait until a BLOCK_JOB_READY event, and return the event."""
1026 return self
.vm
.events_wait([
1028 {'data': {'type': 'mirror', 'device': drive
}}),
1030 {'data': {'type': 'commit', 'device': drive
}})
1033 def wait_ready_and_cancel(self
, drive
='drive0'):
1034 self
.wait_ready(drive
=drive
)
1035 event
= self
.cancel_and_wait(drive
=drive
)
1036 self
.assertEqual(event
['event'], 'BLOCK_JOB_COMPLETED')
1037 self
.assert_qmp(event
, 'data/type', 'mirror')
1038 self
.assert_qmp(event
, 'data/offset', event
['data']['len'])
1040 def complete_and_wait(self
, drive
='drive0', wait_ready
=True,
1041 completion_error
=None):
1042 '''Complete a block job and wait for it to finish'''
1044 self
.wait_ready(drive
=drive
)
1046 result
= self
.vm
.qmp('block-job-complete', device
=drive
)
1047 self
.assert_qmp(result
, 'return', {})
1049 event
= self
.wait_until_completed(drive
=drive
, error
=completion_error
)
1050 self
.assertTrue(event
['data']['type'] in ['mirror', 'commit'])
1052 def pause_wait(self
, job_id
='job0'):
1053 with
Timeout(3, "Timeout waiting for job to pause"):
1055 result
= self
.vm
.qmp('query-block-jobs')
1057 for job
in result
['return']:
1058 if job
['device'] == job_id
:
1060 if job
['paused'] and not job
['busy']:
1065 def pause_job(self
, job_id
='job0', wait
=True):
1066 result
= self
.vm
.qmp('block-job-pause', device
=job_id
)
1067 self
.assert_qmp(result
, 'return', {})
1069 return self
.pause_wait(job_id
)
1072 def case_skip(self
, reason
):
1073 '''Skip this test case'''
1075 self
.skipTest(reason
)
1079 '''Skip this test suite'''
1080 # Each test in qemu-iotests has a number ("seq")
1081 seq
= os
.path
.basename(sys
.argv
[0])
1083 open('%s/%s.notrun' % (output_dir
, seq
), 'w').write(reason
+ '\n')
1084 logger
.warning("%s not run: %s", seq
, reason
)
1087 def case_notrun(reason
):
1088 '''Mark this test case as not having been run (without actually
1089 skipping it, that is left to the caller). See
1090 QMPTestCase.case_skip() for a variant that actually skips the
1091 current test case.'''
1093 # Each test in qemu-iotests has a number ("seq")
1094 seq
= os
.path
.basename(sys
.argv
[0])
1096 open('%s/%s.casenotrun' % (output_dir
, seq
), 'a').write(
1097 ' [case not run] ' + reason
+ '\n')
1099 def _verify_image_format(supported_fmts
: Sequence
[str] = (),
1100 unsupported_fmts
: Sequence
[str] = ()) -> None:
1101 if 'generic' in supported_fmts
and \
1102 os
.environ
.get('IMGFMT_GENERIC', 'true') == 'true':
1104 # _supported_fmt generic
1108 not_sup
= supported_fmts
and (imgfmt
not in supported_fmts
)
1109 if not_sup
or (imgfmt
in unsupported_fmts
):
1110 notrun('not suitable for this image format: %s' % imgfmt
)
1112 if imgfmt
== 'luks':
1113 verify_working_luks()
1115 def _verify_protocol(supported
: Sequence
[str] = (),
1116 unsupported
: Sequence
[str] = ()) -> None:
1117 assert not (supported
and unsupported
)
1119 if 'generic' in supported
:
1122 not_sup
= supported
and (imgproto
not in supported
)
1123 if not_sup
or (imgproto
in unsupported
):
1124 notrun('not suitable for this protocol: %s' % imgproto
)
1126 def _verify_platform(supported
: Sequence
[str] = (),
1127 unsupported
: Sequence
[str] = ()) -> None:
1128 if any((sys
.platform
.startswith(x
) for x
in unsupported
)):
1129 notrun('not suitable for this OS: %s' % sys
.platform
)
1132 if not any((sys
.platform
.startswith(x
) for x
in supported
)):
1133 notrun('not suitable for this OS: %s' % sys
.platform
)
1135 def _verify_cache_mode(supported_cache_modes
: Sequence
[str] = ()) -> None:
1136 if supported_cache_modes
and (cachemode
not in supported_cache_modes
):
1137 notrun('not suitable for this cache mode: %s' % cachemode
)
1139 def _verify_aio_mode(supported_aio_modes
: Sequence
[str] = ()) -> None:
1140 if supported_aio_modes
and (aiomode
not in supported_aio_modes
):
1141 notrun('not suitable for this aio mode: %s' % aiomode
)
1143 def _verify_formats(required_formats
: Sequence
[str] = ()) -> None:
1144 usf_list
= list(set(required_formats
) - set(supported_formats()))
1146 notrun(f
'formats {usf_list} are not whitelisted')
1149 def _verify_virtio_blk() -> None:
1150 out
= qemu_pipe('-M', 'none', '-device', 'help')
1151 if 'virtio-blk' not in out
:
1152 notrun('Missing virtio-blk in QEMU binary')
1155 def supports_quorum():
1156 return 'quorum' in qemu_img_pipe('--help')
1158 def verify_quorum():
1159 '''Skip test suite if quorum support is not available'''
1160 if not supports_quorum():
1161 notrun('quorum support missing')
1163 def has_working_luks() -> Tuple
[bool, str]:
1165 Check whether our LUKS driver can actually create images
1166 (this extends to LUKS encryption for qcow2).
1168 If not, return the reason why.
1171 img_file
= f
'{test_dir}/luks-test.luks'
1172 (output
, status
) = \
1173 qemu_img_pipe_and_status('create', '-f', 'luks',
1174 '--object', luks_default_secret_object
,
1175 '-o', luks_default_key_secret_opt
,
1176 '-o', 'iter-time=10',
1185 for line
in output
.splitlines():
1186 if img_file
+ ':' in line
:
1187 reason
= line
.split(img_file
+ ':', 1)[1].strip()
1190 return (False, reason
)
1194 def verify_working_luks():
1196 Skip test suite if LUKS does not work
1198 (working
, reason
) = has_working_luks()
1202 def qemu_pipe(*args
: str) -> str:
1204 Run qemu with an option to print something and exit (e.g. a help option).
1206 :return: QEMU's stdout output.
1208 full_args
= [qemu_prog
] + qemu_opts
+ list(args
)
1209 output
, _
= qemu_tool_pipe_and_status('qemu', full_args
)
1212 def supported_formats(read_only
=False):
1213 '''Set 'read_only' to True to check ro-whitelist
1214 Otherwise, rw-whitelist is checked'''
1216 if not hasattr(supported_formats
, "formats"):
1217 supported_formats
.formats
= {}
1219 if read_only
not in supported_formats
.formats
:
1220 format_message
= qemu_pipe("-drive", "format=help")
1221 line
= 1 if read_only
else 0
1222 supported_formats
.formats
[read_only
] = \
1223 format_message
.splitlines()[line
].split(":")[1].split()
1225 return supported_formats
.formats
[read_only
]
1227 def skip_if_unsupported(required_formats
=(), read_only
=False):
1228 '''Skip Test Decorator
1229 Runs the test if all the required formats are whitelisted'''
1230 def skip_test_decorator(func
):
1231 def func_wrapper(test_case
: QMPTestCase
, *args
: List
[Any
],
1232 **kwargs
: Dict
[str, Any
]) -> None:
1233 if callable(required_formats
):
1234 fmts
= required_formats(test_case
)
1236 fmts
= required_formats
1238 usf_list
= list(set(fmts
) - set(supported_formats(read_only
)))
1240 msg
= f
'{test_case}: formats {usf_list} are not whitelisted'
1241 test_case
.case_skip(msg
)
1243 func(test_case
, *args
, **kwargs
)
1245 return skip_test_decorator
1247 def skip_for_formats(formats
: Sequence
[str] = ()) \
1248 -> Callable
[[Callable
[[QMPTestCase
, List
[Any
], Dict
[str, Any
]], None]],
1249 Callable
[[QMPTestCase
, List
[Any
], Dict
[str, Any
]], None]]:
1250 '''Skip Test Decorator
1251 Skips the test for the given formats'''
1252 def skip_test_decorator(func
):
1253 def func_wrapper(test_case
: QMPTestCase
, *args
: List
[Any
],
1254 **kwargs
: Dict
[str, Any
]) -> None:
1255 if imgfmt
in formats
:
1256 msg
= f
'{test_case}: Skipped for format {imgfmt}'
1257 test_case
.case_skip(msg
)
1259 func(test_case
, *args
, **kwargs
)
1261 return skip_test_decorator
1263 def skip_if_user_is_root(func
):
1264 '''Skip Test Decorator
1265 Runs the test only without root permissions'''
1266 def func_wrapper(*args
, **kwargs
):
1267 if os
.getuid() == 0:
1268 case_notrun('{}: cannot be run as root'.format(args
[0]))
1271 return func(*args
, **kwargs
)
1274 def execute_unittest(debug
=False):
1275 """Executes unittests within the calling module."""
1277 verbosity
= 2 if debug
else 1
1282 # We need to filter out the time taken from the output so that
1283 # qemu-iotest can reliably diff the results against master output.
1284 output
= io
.StringIO()
1286 runner
= unittest
.TextTestRunner(stream
=output
, descriptions
=True,
1287 verbosity
=verbosity
)
1289 # unittest.main() will use sys.exit(); so expect a SystemExit
1291 unittest
.main(testRunner
=runner
)
1293 # We need to filter out the time taken from the output so that
1294 # qemu-iotest can reliably diff the results against master output.
1296 out
= output
.getvalue()
1297 out
= re
.sub(r
'Ran (\d+) tests? in [\d.]+s', r
'Ran \1 tests', out
)
1299 # Hide skipped tests from the reference output
1300 out
= re
.sub(r
'OK \(skipped=\d+\)', 'OK', out
)
1301 out_first_line
, out_rest
= out
.split('\n', 1)
1302 out
= out_first_line
.replace('s', '.') + '\n' + out_rest
1304 sys
.stderr
.write(out
)
1306 def execute_setup_common(supported_fmts
: Sequence
[str] = (),
1307 supported_platforms
: Sequence
[str] = (),
1308 supported_cache_modes
: Sequence
[str] = (),
1309 supported_aio_modes
: Sequence
[str] = (),
1310 unsupported_fmts
: Sequence
[str] = (),
1311 supported_protocols
: Sequence
[str] = (),
1312 unsupported_protocols
: Sequence
[str] = (),
1313 required_fmts
: Sequence
[str] = ()) -> bool:
1315 Perform necessary setup for either script-style or unittest-style tests.
1317 :return: Bool; Whether or not debug mode has been requested via the CLI.
1319 # Note: Python 3.6 and pylint do not like 'Collection' so use 'Sequence'.
1321 debug
= '-d' in sys
.argv
1323 sys
.argv
.remove('-d')
1324 logging
.basicConfig(level
=(logging
.DEBUG
if debug
else logging
.WARN
))
1326 _verify_image_format(supported_fmts
, unsupported_fmts
)
1327 _verify_protocol(supported_protocols
, unsupported_protocols
)
1328 _verify_platform(supported
=supported_platforms
)
1329 _verify_cache_mode(supported_cache_modes
)
1330 _verify_aio_mode(supported_aio_modes
)
1331 _verify_formats(required_fmts
)
1332 _verify_virtio_blk()
1336 def execute_test(*args
, test_function
=None, **kwargs
):
1337 """Run either unittest or script-style tests."""
1339 debug
= execute_setup_common(*args
, **kwargs
)
1340 if not test_function
:
1341 execute_unittest(debug
)
1345 def activate_logging():
1346 """Activate iotests.log() output to stdout for script-style tests."""
1347 handler
= logging
.StreamHandler(stream
=sys
.stdout
)
1348 formatter
= logging
.Formatter('%(message)s')
1349 handler
.setFormatter(formatter
)
1350 test_logger
.addHandler(handler
)
1351 test_logger
.setLevel(logging
.INFO
)
1352 test_logger
.propagate
= False
1354 # This is called from script-style iotests without a single point of entry
1355 def script_initialize(*args
, **kwargs
):
1356 """Initialize script-style tests without running any tests."""
1358 execute_setup_common(*args
, **kwargs
)
1360 # This is called from script-style iotests with a single point of entry
1361 def script_main(test_function
, *args
, **kwargs
):
1362 """Run script-style tests outside of the unittest framework"""
1364 execute_test(*args
, test_function
=test_function
, **kwargs
)
1366 # This is called from unittest style iotests
1367 def main(*args
, **kwargs
):
1368 """Run tests using the unittest framework"""
1369 execute_test(*args
, **kwargs
)