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Re: [RFC 0/2] introduce QEMUMachind.cmd()


From: Vladimir Sementsov-Ogievskiy
Subject: Re: [RFC 0/2] introduce QEMUMachind.cmd()
Date: Tue, 17 May 2022 14:22:13 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0

27.04.2022 22:29, John Snow wrote:
On Fri, Apr 8, 2022 at 1:02 PM Vladimir Sementsov-Ogievskiy
<vladimir.sementsov-ogievskiy@openvz.org> wrote:

Hi all!

I always dreamed about getting rid of pattern

     result = self.vm.qmp(...)
     self.assert_qmp(result, 'return', {})

Here is a suggestion to switch to

     self.vm.cmd(...)

pattern instead.

Yeah, I am absolutely on board for this!


I'm not sure we really want to update so many tests. May be just commit
patch 01, and use new interface for new code. On the other hand, old
code always used as an example to write the new one.

I think it's worth updating all the old tests ... especially if you've
already done it here. We could even do something like what I did with
qemu_img() and qemu_io() and have the uncaught exception print a bunch
of information to the screen to help make it extremely obvious as to
what failed and why.

If you can rebase this, I'd love to review it more carefully - it
aligns with my own selfish goals and interests :) The Python branch
was merged recently and so we should be all set.


The series is based on John's python branch.

Vladimir Sementsov-Ogievskiy (2):
   python/machine.py: upgrade vm.command() method
   iotests: use vm.cmd() instead of vm.qmp() where appropriate

  python/qemu/machine/machine.py                |  16 +-
  tests/qemu-iotests/030                        | 168 +++----
  tests/qemu-iotests/040                        | 167 +++---
  tests/qemu-iotests/041                        | 474 ++++++++----------
  tests/qemu-iotests/045                        |  15 +-
  tests/qemu-iotests/055                        |  61 +--
  tests/qemu-iotests/056                        |  23 +-
  tests/qemu-iotests/093                        |  41 +-
  tests/qemu-iotests/118                        | 221 ++++----
  tests/qemu-iotests/124                        |  69 ++-
  tests/qemu-iotests/129                        |  13 +-
  tests/qemu-iotests/132                        |   5 +-
  tests/qemu-iotests/139                        |  43 +-
  tests/qemu-iotests/147                        |  30 +-
  tests/qemu-iotests/151                        |  40 +-
  tests/qemu-iotests/155                        |  53 +-
  tests/qemu-iotests/165                        |   7 +-
  tests/qemu-iotests/196                        |   3 +-
  tests/qemu-iotests/205                        |   6 +-
  tests/qemu-iotests/245                        | 245 ++++-----
  tests/qemu-iotests/256                        |  34 +-
  tests/qemu-iotests/257                        |  36 +-
  tests/qemu-iotests/264                        |  31 +-
  tests/qemu-iotests/281                        |  21 +-
  tests/qemu-iotests/295                        |  27 +-
  tests/qemu-iotests/296                        |  14 +-
  tests/qemu-iotests/298                        |  13 +-
  tests/qemu-iotests/300                        |  50 +-
  tests/qemu-iotests/iotests.py                 |   6 +-
  .../tests/migrate-bitmaps-postcopy-test       |  31 +-
  tests/qemu-iotests/tests/migrate-bitmaps-test |  37 +-
  .../qemu-iotests/tests/migrate-during-backup  |  40 +-
  .../qemu-iotests/tests/migration-permissions  |   9 +-
  tests/qemu-iotests/tests/mirror-top-perms     |  15 +-
  34 files changed, 821 insertions(+), 1243 deletions(-)

Is there anything missing, to your knowledge?


Don't remember) I hope, I'd write in commit message, if there was something :) 
Will rebase soon.

--
Best regards,
Vladimir



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