Commit Graph

146 Commits

Author SHA1 Message Date
Aarushi Mehta 7156ca4888 tests/qemu-iotests: enable testing with aio options
Signed-off-by: Aarushi Mehta <mehta.aaru20@gmail.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200120141858.587874-15-stefanha@redhat.com
Message-Id: <20200120141858.587874-15-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-30 21:01:40 +00:00
Max Reitz 8da7969bd7 iotests.py: Let wait_migration wait even more
The "migration completed" event may be sent (on the source, to be
specific) before the migration is actually completed, so the VM runstate
will still be "finish-migrate" instead of "postmigrate".  So ask the
users of VM.wait_migration() to specify the final runstate they desire
and then poll the VM until it has reached that state.  (This should be
over very quickly, so busy polling is fine.)

Without this patch, I see intermittent failures in the new iotest 280
under high system load.  I have not yet seen such failures with other
iotests that use VM.wait_migration() and query-status afterwards, but
maybe they just occur even more rarely, or it is because they also wait
on the destination VM to be running.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-01-27 17:19:53 +01:00
Max Reitz 216656f5f9 iotests: Add @error to wait_until_completed
Callers can use this new parameter to expect failure during the
completion process.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191108123455.39445-5-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-01-06 13:43:06 +01:00
Kevin Wolf e9dbd1cae8 iotests: Create VM.blockdev_create()
We have several almost identical copies of a blockdev_create() function
in different test cases. Time to create one unified function in
iotests.py.

To keep the diff managable, this patch only creates the function and
follow-up patches will convert the individual test cases.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-12-19 14:32:43 +01:00
Kevin Wolf 4688c4e32e iotests: Support job-complete in run_job()
Automatically complete jobs that have a 'ready' state and need an
explicit job-complete. Without this, run_job() would hang for such
jobs.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-12-18 11:21:16 +01:00
Kevin Wolf 55824e0980 iotests: Fix timeout in run_job()
run_job() accepts a wait parameter for a timeout, but it doesn't
actually use it. The only thing that is missing is passing it to
events_wait(), so do that now.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-12-18 11:21:16 +01:00
Kevin Wolf a96f0350e3 iotests: Add qemu_io_log()
Add a function that runs qemu-io and logs the output with the
appropriate filters applied.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-12-18 11:21:16 +01:00
Andrey Shinkevich a4d925f8f0 iotests: Test NBD client reconnection
The test for an NBD client. The NBD server is disconnected after the
client write request. The NBD client should reconnect and complete
the write operation.

Suggested-by: Denis V. Lunev <den@openvz.org>
Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Message-Id: <1573529976-815699-1-git-send-email-andrey.shinkevich@virtuozzo.com>
2019-11-18 16:01:31 -06:00
Vladimir Sementsov-Ogievskiy dbf231d7b4 qemu-iotests/iotests.py: improve assert_qmp message
From the two values compared, make it obvious which is found at path, and
which is expected.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-11-18 17:50:08 +01:00
Max Reitz 93b78ea5f6 iotests.py: Add @base_dir to FilePaths etc.
Specifying this optional parameter allows creating temporary files in
other directories than the test_dir; for example in sock_dir.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20191017133155.5327-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:31 +01:00
Max Reitz 32558ce7a4 iotests.py: Store socket files in $SOCK_DIR
iotests.py itself does not store socket files, but machine.py and
qtest.py do.  iotests.py needs to pass the respective path to them, and
they need to adhere to it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20191017133155.5327-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 767de537b1 iotests: Cache supported_formats()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190917092004.999-8-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 7448be831a iotests: Let skip_if_unsupported accept a function
This lets tests use skip_if_unsupported() with a potentially variable
list of required formats.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190917092004.999-5-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz e6067a950c iotests: Use case_skip() in skip_if_unsupported()
skip_if_unsupported() should use the stronger variant case_skip(),
because this allows it to be used even with setUp() (in a meaningful
way).

In the process, make it explicit what we expect the first argument of
the func_wrapper to be (namely something derived of QMPTestCase).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190917092004.999-4-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Max Reitz 6be0122520 iotests: Allow skipping test cases
case_notrun() does not actually skip the current test case.  It just
adds a "notrun" note and then returns to the caller, who manually has to
skip the test.  Generally, skipping a test case is as simple as
returning from the current function, but not always: For example, this
model does not allow skipping tests already in the setUp() function.

Thus, add a QMPTestCase.case_skip() function that invokes case_notrun()
and then self.skipTest().  To make this work, we need to filter the
information on how many test cases were skipped from the unittest
output.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Message-id: 20190917092004.999-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 11:22:30 +01:00
Kevin Wolf d926f4ddd2 iotests: Skip read-only cases in 118 when run as root
Some tests in 118 use chmod to remove write permissions from the file
and assume that the image can indeed not be opened read-write
afterwards. This doesn't work when the test is run as root, because root
can still open the file as writable even when the permission bit isn't
set.

Introduce a @skip_if_root decorator and use it in 118 to skip the tests
in question when the script is run as root.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-25 15:15:01 +02:00
Vladimir Sementsov-Ogievskiy 23ee0ec236 iotests: test nbd reconnect
Add test, which starts backup to nbd target and restarts nbd server
during backup.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20191009084158.15614-4-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-10-22 20:51:31 -05:00
Vladimir Sementsov-Ogievskiy 5c4343b89d iotests: prepare 124 and 257 bitmap querying for backup-top filter
After backup-top filter appearing it's not possible to see dirty
bitmaps in top node, so use node-name instead.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190920142056.12778-10-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-10 10:56:17 +02:00
Kevin Wolf 7e693a0500 iotests: Remove Python 2 compatibility code
Some scripts check the Python version number and have two code paths to
accomodate both Python 2 and 3. Remove the code specific to Python 2 and
assert the minimum version of 3.6 instead (check skips Python tests in
this case, so the assertion would only ever trigger if a Python script
is executed manually).

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2019-10-04 11:59:16 +02:00
Max Reitz 88d2aa533a iotests: Add supported protocols to execute_test()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
John Snow f357576fa9 iotests: Add virtio-scsi device helper
Seems that it comes up enough.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-17-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow de263986b5 iotests: teach FilePath to produce multiple paths
Use "FilePaths" instead of "FilePath" to request multiple files be
cleaned up after we leave that object's scope.

This is not crucial; but it saves a little typing.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-16-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow d443b74b3d iotests: teach run_job to cancel pending jobs
run_job can cancel pending jobs to simulate failure. This lets us use
the pending callback to issue test commands while the job is open, but
then still have the job fail in the end.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-15-jsnow@redhat.com
[Maintainer edit: Merge conflict resolution in run_job]
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
John Snow 456a2d5ac7 iotests: add testing shim for script-style python tests
Because the new-style python tests don't use the iotests.main() test
launcher, we don't turn on the debugger logging for these scripts
when invoked via ./check -d.

Refactor the launcher shim into new and old style shims so that they
share environmental configuration.

Two cleanup notes: debug was not actually used as a global, and there
was no reason to create a class in an inner scope just to achieve
default variables; we can simply create an instance of the runner with
the values we want instead.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-14-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2019-08-16 16:28:02 -04:00
Kevin Wolf 980448f17a iotests: Move migration helpers to iotests.py
234 implements functions that are useful for doing migration between two
VMs. Move them to iotests.py so that other test cases can use them, too.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-08-16 10:25:16 +02:00
Max Reitz 15427f63bc iotests: Add @use_log to VM.run_job()
unittest-style tests generally do not use the log file, but VM.run_job()
can still be useful to them.  Add a parameter to it that hides its
output from the log file.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190703172813.6868-10-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-07-15 15:48:40 +02:00
John Snow d6a79af0e6 iotests.py: rewrite run_job to be pickier
Don't pull events out of the queue that don't belong to us;
be choosier so that we can use this method to drive jobs that
were launched by transactions that may have more jobs.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20190523170643.20794-5-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-06-14 14:16:57 +02:00
John Snow 8b6f5f8b9f iotests.py: do not use infinite waits
Cap waits to 60 seconds so that iotests can fail gracefully if something
goes wrong.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 20190523170643.20794-3-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-06-14 14:16:57 +02:00
Max Reitz 6177b58431 iotests.py: Add qemu_nbd_early_pipe()
qemu_nbd_pipe() currently unconditionally reads qemu-nbd's output.  That
is not ideal because qemu-nbd may keep stderr open after the parent
process has exited.

Currently, the only user of qemu_nbd_pipe() is 147, which discards the
whole output if the parent process returned success and only evaluates
it on error.  Therefore, we can replace qemu_nbd_pipe() by
qemu_nbd_early_pipe() that does the same: Discard the output on success,
and return it on error.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190508211820.17851-3-mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-06-13 08:50:47 -05:00
Kevin Wolf ac6fb43eae iotests: Test commit job start with concurrent I/O
This tests that concurrent requests are correctly drained before making
graph modifications instead of running into assertions in
bdrv_replace_node().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2019-06-04 15:20:41 +02:00
Max Reitz 86a4f599a6 iotests.py: Fix VM.run_job
log() is in the current module, there is no need to prefix it.  In fact,
doing so may make VM.run_job() unusable in tests that never use
iotests.log() themselves.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:57 +02:00
Max Reitz a93a42bd91 iotests.py: Let assert_qmp() accept an array
Sometimes we cannot tell which error message qemu will emit, and we do
not care.  With this change, we can then just pass an array of all
possible messages to assert_qmp() and it will choose the right one.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-05-20 17:08:57 +02:00
Max Reitz b8c1f90118 block/ssh: Implement .bdrv_refresh_filename()
This requires some changes to keep iotests 104 and 207 working.

qemu-img info in 104 will now return a filename including the user name
and the port, which need to be filtered by adjusting REMOTE_TEST_DIR in
common.rc.  This additional information has to be marked optional,
however (which is simple as REMOTE_TEST_DIR is a regex), because
otherwise 197 and 215 would fail: They use it (indirectly) to filter
qemu-img create output which contains a backing filename they have
passed to it -- which probably does not contain a user name or port
number.

The problem in 207 is a nice one to have: qemu-img info used to return
json:{} filenames, but with this patch it returns nice plain ones.  We
now need to adjust the filtering to hide the user name (and port number
while we are at it).  The simplest way to do this is to include both in
iotests.remote_filename() so that bdrv_refresh_filename() will not
change it, and then iotests.img_info_log() will filter it correctly
automatically.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Message-id: 20190225190828.17726-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-05-07 17:14:21 +02:00
Andrey Shinkevich 57ed557f03 iotests: ask QEMU for supported formats
Supported formats listed by 'qemu' may differ from those listed by
'qemu-img' due to whitelists. Some test cases require specific formats
that may be used with qemu. They can be inquired directly by running
'qemu -drive format=help'. The response takes whitelists into account.
The method supported_formats() serves for that. The method decorator
skip_if_unsupported() checks if all requested formats are whitelisted.
If not, the test case will be skipped. That has been implemented in
the 'check' file in the way similar to the 'test notrun' mechanism.

Suggested-by: Roman Kagan <rkagan@virtuozzo.com>
Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-08 12:26:45 +01:00
Andrey Shinkevich ce090f656c iotests: open notrun files in text mode
Replace the binary mode with the default text one when *.notrun
files are opened for skipped tests. That change is made for the
compatibility with Python 3 which returns error otherwise.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-03-08 12:26:45 +01:00
Peter Maydell 6cb4f6db4f Python queue, 2019-02-22
Python:
 * introduce "python" directory with module namespace
 * log QEMU launch command line on qemu.QEMUMachine
 
 Acceptance Tests:
 * initrd 4GiB+ test
 * migration test
 * multi vm support in test class
 * bump Avocado version and drop "🥑 enable"
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Merge remote-tracking branch 'remotes/cleber/tags/python-next-pull-request' into staging

Python queue, 2019-02-22

Python:
* introduce "python" directory with module namespace
* log QEMU launch command line on qemu.QEMUMachine

Acceptance Tests:
* initrd 4GiB+ test
* migration test
* multi vm support in test class
* bump Avocado version and drop "🥑 enable"

# gpg: Signature made Fri 22 Feb 2019 19:37:07 GMT
# gpg:                using RSA key 657E8D33A5F209F3
# gpg: Good signature from "Cleber Rosa <crosa@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 7ABB 96EB 8B46 B94D 5E0F  E9BB 657E 8D33 A5F2 09F3

* remotes/cleber/tags/python-next-pull-request:
  Acceptance tests: expect boot to extract 2GiB+ initrd with linux-v4.16
  Acceptance tests: use linux-3.6 and set vm memory to 4GiB
  tests.acceptance: adds simple migration test
  tests.acceptance: adds multi vm capability for acceptance tests
  scripts/qemu.py: log QEMU launch command line
  Introduce a Python module structure
  Acceptance tests: drop usage of "🥑 enable"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-07 16:16:02 +00:00
Max Reitz 6a4e88e179 iotests: Skip 211 on insufficient memory
VDI keeps the whole bitmap in memory, and the maximum size (which is
tested here) is 2 GB.  This may not be available on all machines, and it
rarely is available when running a 32 bit build.

Fix this by making VM.run_job() return the error string if an error
occurred, and checking whether that contains "Could not allocate bmap"
in 211.  If so, the test is skipped.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190218180646.30282-1-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-25 15:11:28 +01:00
Max Reitz 8a57a4be83 iotests.py: s/_/-/g on keys in qmp_log()
This follows what qmp() does, so the output will correspond to the
actual QMP command.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190210145736.1486-11-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-25 15:11:28 +01:00
Max Reitz 56a6e5d0ca iotests.py: Filter filename in any string value
filter_qmp_testfiles() currently filters the filename only for specific
keys.  However, there are more keys that take filenames (such as
block-commit's @top and @base, or ssh's @path), and it does not make
sense to list them all here.  "$TEST_DIR/$PID-" should have enough
entropy not to appear anywhere randomly.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190210145736.1486-8-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-25 15:11:28 +01:00
Max Reitz 011a576113 iotests.py: Add is_str()
On Python 2.x, strings are not always unicode strings.  This function
checks whether a given value is a plain string, or a unicode string (if
there is a difference).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190210145736.1486-7-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-25 15:11:28 +01:00
Max Reitz ef7afd6399 iotests.py: Add node_info()
This function queries a node; since we cannot do that right now, it
executes query-named-block-nodes and returns the matching node's object.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20190201192935.18394-8-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-25 15:11:26 +01:00
Max Reitz f2ea0b2082 iotests.py: Add filter_imgfmt()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190201192935.18394-7-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-25 15:11:25 +01:00
Cleber Rosa 8f8fd9edba Introduce a Python module structure
This is a simple move of Python code that wraps common QEMU
functionality, and are used by a number of different tests
and scripts.

By treating that code as a real Python module, we can more easily:
 * reuse code
 * have a proper place for the module's own unittests
 * apply a more consistent style
 * generate documentation

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Caio Carrara <ccarrara@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190206162901.19082-2-crosa@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-02-22 14:07:01 -05:00
John Snow 039be85c41 iotests/236: fix transaction kwarg order
It's not enough to order the kwargs for consistent QMP log output,
we must also sort any sub-dictionaries in lists that appear as values.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:45 +01:00
Fam Zheng bab4feb2fa iotests: Filter cid numbers in VMDK extent info
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:44 +01:00
Max Reitz e1e6eccd49 iotests.py: Add qemu_nbd_pipe()
In some cases, we may want to deal with qemu-nbd errors (e.g. by
launching it in a different configuration until it no longer throws
any).  In that case, we do not want its output ending up in the test
output.

It may still be useful for handling the error, though, so add a new
function that works basically like qemu_nbd(), only that it returns the
qemu-nbd output instead of making it end up in the log.  In contrast to
qemu_img_pipe(), it does still return the exit code as well, though,
because that is even more important for error handling.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20181221234750.23577-2-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-01-31 00:44:29 +01:00
John Snow 55cd64eab5 iotests: implement pretty-print for log and qmp_log
If iotests have lines exceeding >998 characters long, git doesn't
want to send it plaintext to the list. We can solve this by allowing
the iotests to use pretty printed QMP output that we can match against
instead.

As a bonus, it's much nicer for human eyes too.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20181221093529.23855-11-jsnow@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-01-14 10:09:46 -06:00
John Snow 08fcd6111e iotests: change qmp_log filters to expect QMP objects only
As laid out in the previous commit's message:

```
Several places in iotests deal with serializing objects into JSON
strings, but to add pretty-printing it seems desirable to localize
all of those cases.

log() seems like a good candidate for that centralized behavior.
log() can already serialize json objects, but when it does so,
it assumes filters=[] operates on QMP objects, not strings.

qmp_log currently operates by dumping outgoing and incoming QMP
objects into strings and filtering them assuming that filters=[]
are string filters.
```

Therefore:

Change qmp_log to treat filters as if they're always qmp object filters,
then change the logging call to rely on log()'s ability to serialize QMP
objects, so we're not duplicating that effort.

Add a qmp version of filter_testfiles and adjust the only caller using
it for qmp_log to use the qmp version.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20181221093529.23855-10-jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-01-14 10:09:46 -06:00
John Snow f8ca8609d8 iotests: remove default filters from qmp_log
Several places in iotests deal with serializing objects into JSON
strings, but to add pretty-printing it seems desirable to localize
all of those cases.

log() seems like a good candidate for that centralized behavior.
log() can already serialize json objects, but when it does so,
it assumes filters=[] operates on QMP objects, not strings.

qmp_log currently operates by dumping outgoing and incoming QMP
objects into strings and filtering them assuming that filters=[]
are string filters.

To have qmp_log use log's serialization, qmp_log will need to
accept only qmp filters, not text filters.

However, only a single caller of qmp_log actually requires any
filters at all. I remove the default filter and add it explicitly
to the caller in preparation for refactoring qmp_log to use rich
filters instead.

test 206 is amended to name the filter explicitly and the default
is removed.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20181221093529.23855-9-jsnow@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-01-14 10:09:46 -06:00
John Snow 0706e87d72 iotests: add qmp recursive sorting function
Python before 3.6 does not sort dictionaries (including kwargs).
Therefore, printing QMP objects involves sorting the keys to have
a predictable ordering in the iotests output. This means that
iotests output will sometimes show arguments in an order not
specified by the test author.

Presently, we accomplish this by using json.dumps' sort_keys argument,
where we only serialize the arguments dictionary, but not the command.

However, if we want to pretty-print QMP objects being sent to the
QEMU process, we need to build the entire command before logging it.
Ordinarily, this would then involve "arguments" being sorted above
"execute", which would necessitate a rather ugly and harder-to-read
change to many iotests outputs.

To facilitate pretty-printing AND maintaining predictable output AND
having "arguments" sort after "execute", add a custom sort function
that takes a dictionary and recursively builds an OrderedDict that
maintains the specific key order we wish to see in iotests output.

The qmp_log function uses this to build a QMP object that keeps
"execute" above "arguments", but sorts all keys and keys in any
subdicts in "arguments" lexicographically to maintain consistent
iotests output, with no incompatible changes to any current test.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20181221093529.23855-8-jsnow@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-01-14 10:09:46 -06:00