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iotest: fix python based IO tests

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The previous commit refactoring iotests.py:

  commit 6661397446
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Wed Jul 20 14:23:10 2016 +0100

    scripts: refactor the VM class in iotests for reuse

was not properly tested and included a number of broken
bits.

 - The 'event_match' method was not moved into qemu.py
 - The 'self._args' list parameter in QEMUMachine needs
   to be copied otherwise modifications will affect the
   global 'qemu_opts' variable in iotests.py
 - The QEMUQtestMachine class methods had inverted
   parameter order for the super() calls
 - The QEMUQtestMachine class forgot to add
   '-machine accel=qtest'
 - The QEMUQtestMachine class constructor needs to set
   a default 'name' value before using it as it may
   be None
 - The QEMUQtestMachine class constructor needs to use
   named parameters when calling the super constructor
   as it is leaving out some positional parameters.
 - The 'qemu_prog' variable should be a string not a
   list in iotests.py
 - The VM classs constructor needs to use named
   parameters when calling the super constructor
   as it is leaving out some positional parameters.
 - The path to the socket-scm-helper needs to be
   passed into the QEMUMachine class

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1469549767-27249-1-git-send-email-berrange@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-07-26 17:16:07 +01:00 • committed by Max Reitz
parent c7c4cf498f
commit 4c44b4a4c8
3 changed files with 42 additions and 33 deletions
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19
scripts/qtest.py
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@ -79,25 +79,30 @@ class QEMUQtestProtocol(object):
class QEMUQtestMachine(qemu.QEMUMachine):
'''A QEMU VM'''
def __init__(self, binary, args=[], name=None, test_dir="/var/tmp"):
super(self, QEMUQtestMachine).__init__(binary, args, name, test_dir)
def __init__(self, binary, args=[], name=None, test_dir="/var/tmp",
socket_scm_helper=None):
if name is None:
name = "qemu-%d" % os.getpid()
super(QEMUQtestMachine, self).__init__(binary, args, name=name, test_dir=test_dir,
socket_scm_helper=socket_scm_helper)
self._qtest_path = os.path.join(test_dir, name + "-qtest.sock")
def _base_args(self):
args = super(self, QEMUQtestMachine)._base_args()
args.extend(['-qtest', 'unix:path=' + self._qtest_path])
args = super(QEMUQtestMachine, self)._base_args()
args.extend(['-qtest', 'unix:path=' + self._qtest_path,
'-machine', 'accel=qtest'])
return args
def _pre_launch(self):
super(self, QEMUQtestMachine)._pre_launch()
super(QEMUQtestMachine, self)._pre_launch()
self._qtest = QEMUQtestProtocol(self._qtest_path, server=True)
def _post_launch(self):
super(self, QEMUQtestMachine)._post_launch()
super(QEMUQtestMachine, self)._post_launch()
self._qtest.accept()
def _post_shutdown(self):
super(self, QEMUQtestMachine)._post_shutdown()
super(QEMUQtestMachine, self)._post_shutdown()
self._remove_if_exists(self._qtest_path)
def qtest(self, cmd):