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	 090744d552
			
		
	
	
		090744d552
		
	
	
	
	
		
			
			mypy wants to ensure there's consistency between the kwargs arguments types and any unspecified keyword arguments. In this case, conv_keys is a bool, but the remaining keys are Any type. Mypy (correctly) infers the **kwargs type to be **Dict[str, str], which is not compatible with conv_keys: bool. Because QMP typing is a little fraught right now anyway, re-type kwargs to Dict[str, Any] which has the benefit of silencing this check right now. A future re-design might type these more aggressively, but this will give us a baseline to work from with minimal disruption. (Thanks Kevin Wolf for the debugging assist here) Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 20201006235817.3280413-11-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com>
		
			
				
	
	
		
			1327 lines
		
	
	
		
			46 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			1327 lines
		
	
	
		
			46 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| # Common utilities and Python wrappers for qemu-iotests
 | |
| #
 | |
| # Copyright (C) 2012 IBM Corp.
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| #
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| # This program is free software; you can redistribute it and/or modify
 | |
| # it under the terms of the GNU General Public License as published by
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| # the Free Software Foundation; either version 2 of the License, or
 | |
| # (at your option) any later version.
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| #
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| # This program is distributed in the hope that it will be useful,
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| # but WITHOUT ANY WARRANTY; without even the implied warranty of
 | |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| # GNU General Public License for more details.
 | |
| #
 | |
| # You should have received a copy of the GNU General Public License
 | |
| # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 | |
| #
 | |
| 
 | |
| import atexit
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| from collections import OrderedDict
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| import faulthandler
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| import io
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| import json
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| import logging
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| import os
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| import re
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| import signal
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| import struct
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| import subprocess
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| import sys
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| import time
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| from typing import (Any, Callable, Dict, Iterable,
 | |
|                     List, Optional, Sequence, Tuple, TypeVar)
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| import unittest
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| 
 | |
| from contextlib import contextmanager
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| 
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| # pylint: disable=import-error, wrong-import-position
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| sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
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| from qemu import qtest
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| from qemu.qmp import QMPMessage
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| 
 | |
| # Use this logger for logging messages directly from the iotests module
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| logger = logging.getLogger('qemu.iotests')
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| logger.addHandler(logging.NullHandler())
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| 
 | |
| # Use this logger for messages that ought to be used for diff output.
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| test_logger = logging.getLogger('qemu.iotests.diff_io')
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| 
 | |
| 
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| faulthandler.enable()
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| 
 | |
| # This will not work if arguments contain spaces but is necessary if we
 | |
| # want to support the override options that ./check supports.
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| qemu_img_args = [os.environ.get('QEMU_IMG_PROG', 'qemu-img')]
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| if os.environ.get('QEMU_IMG_OPTIONS'):
 | |
|     qemu_img_args += os.environ['QEMU_IMG_OPTIONS'].strip().split(' ')
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| 
 | |
| qemu_io_args = [os.environ.get('QEMU_IO_PROG', 'qemu-io')]
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| if os.environ.get('QEMU_IO_OPTIONS'):
 | |
|     qemu_io_args += os.environ['QEMU_IO_OPTIONS'].strip().split(' ')
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| 
 | |
| qemu_io_args_no_fmt = [os.environ.get('QEMU_IO_PROG', 'qemu-io')]
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| if os.environ.get('QEMU_IO_OPTIONS_NO_FMT'):
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|     qemu_io_args_no_fmt += \
 | |
|         os.environ['QEMU_IO_OPTIONS_NO_FMT'].strip().split(' ')
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| 
 | |
| qemu_nbd_prog = os.environ.get('QEMU_NBD_PROG', 'qemu-nbd')
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| qemu_nbd_args = [qemu_nbd_prog]
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| if os.environ.get('QEMU_NBD_OPTIONS'):
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|     qemu_nbd_args += os.environ['QEMU_NBD_OPTIONS'].strip().split(' ')
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| 
 | |
| qemu_prog = os.environ.get('QEMU_PROG', 'qemu')
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| qemu_opts = os.environ.get('QEMU_OPTIONS', '').strip().split(' ')
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| 
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| imgfmt = os.environ.get('IMGFMT', 'raw')
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| imgproto = os.environ.get('IMGPROTO', 'file')
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| test_dir = os.environ.get('TEST_DIR')
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| sock_dir = os.environ.get('SOCK_DIR')
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| output_dir = os.environ.get('OUTPUT_DIR', '.')
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| cachemode = os.environ.get('CACHEMODE')
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| aiomode = os.environ.get('AIOMODE')
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| qemu_default_machine = os.environ.get('QEMU_DEFAULT_MACHINE')
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| 
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| socket_scm_helper = os.environ.get('SOCKET_SCM_HELPER', 'socket_scm_helper')
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| 
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| luks_default_secret_object = 'secret,id=keysec0,data=' + \
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|                              os.environ.get('IMGKEYSECRET', '')
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| luks_default_key_secret_opt = 'key-secret=keysec0'
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| 
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| 
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| def qemu_tool_pipe_and_status(tool: str, args: Sequence[str],
 | |
|                               connect_stderr: bool = True) -> Tuple[str, int]:
 | |
|     """
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|     Run a tool and return both its output and its exit code
 | |
|     """
 | |
|     stderr = subprocess.STDOUT if connect_stderr else None
 | |
|     subp = subprocess.Popen(args,
 | |
|                             stdout=subprocess.PIPE,
 | |
|                             stderr=stderr,
 | |
|                             universal_newlines=True)
 | |
|     output = subp.communicate()[0]
 | |
|     if subp.returncode < 0:
 | |
|         sys.stderr.write('%s received signal %i: %s\n'
 | |
|                          % (tool, -subp.returncode,
 | |
|                             ' '.join(qemu_img_args + list(args))))
 | |
|     return (output, subp.returncode)
 | |
| 
 | |
| def qemu_img_pipe_and_status(*args: str) -> Tuple[str, int]:
 | |
|     """
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|     Run qemu-img and return both its output and its exit code
 | |
|     """
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|     full_args = qemu_img_args + list(args)
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|     return qemu_tool_pipe_and_status('qemu-img', full_args)
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| 
 | |
| def qemu_img(*args: str) -> int:
 | |
|     '''Run qemu-img and return the exit code'''
 | |
|     return qemu_img_pipe_and_status(*args)[1]
 | |
| 
 | |
| def ordered_qmp(qmsg, conv_keys=True):
 | |
|     # Dictionaries are not ordered prior to 3.6, therefore:
 | |
|     if isinstance(qmsg, list):
 | |
|         return [ordered_qmp(atom) for atom in qmsg]
 | |
|     if isinstance(qmsg, dict):
 | |
|         od = OrderedDict()
 | |
|         for k, v in sorted(qmsg.items()):
 | |
|             if conv_keys:
 | |
|                 k = k.replace('_', '-')
 | |
|             od[k] = ordered_qmp(v, conv_keys=False)
 | |
|         return od
 | |
|     return qmsg
 | |
| 
 | |
| def qemu_img_create(*args):
 | |
|     args = list(args)
 | |
| 
 | |
|     # default luks support
 | |
|     if '-f' in args and args[args.index('-f') + 1] == 'luks':
 | |
|         if '-o' in args:
 | |
|             i = args.index('-o')
 | |
|             if 'key-secret' not in args[i + 1]:
 | |
|                 args[i + 1].append(luks_default_key_secret_opt)
 | |
|                 args.insert(i + 2, '--object')
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|                 args.insert(i + 3, luks_default_secret_object)
 | |
|         else:
 | |
|             args = ['-o', luks_default_key_secret_opt,
 | |
|                     '--object', luks_default_secret_object] + args
 | |
| 
 | |
|     args.insert(0, 'create')
 | |
| 
 | |
|     return qemu_img(*args)
 | |
| 
 | |
| def qemu_img_measure(*args):
 | |
|     return json.loads(qemu_img_pipe("measure", "--output", "json", *args))
 | |
| 
 | |
| def qemu_img_check(*args):
 | |
|     return json.loads(qemu_img_pipe("check", "--output", "json", *args))
 | |
| 
 | |
| def qemu_img_verbose(*args):
 | |
|     '''Run qemu-img without suppressing its output and return the exit code'''
 | |
|     exitcode = subprocess.call(qemu_img_args + list(args))
 | |
|     if exitcode < 0:
 | |
|         sys.stderr.write('qemu-img received signal %i: %s\n'
 | |
|                          % (-exitcode, ' '.join(qemu_img_args + list(args))))
 | |
|     return exitcode
 | |
| 
 | |
| def qemu_img_pipe(*args: str) -> str:
 | |
|     '''Run qemu-img and return its output'''
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|     return qemu_img_pipe_and_status(*args)[0]
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| 
 | |
| def qemu_img_log(*args):
 | |
|     result = qemu_img_pipe(*args)
 | |
|     log(result, filters=[filter_testfiles])
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|     return result
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| 
 | |
| def img_info_log(filename, filter_path=None, imgopts=False, extra_args=()):
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|     args = ['info']
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|     if imgopts:
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|         args.append('--image-opts')
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|     else:
 | |
|         args += ['-f', imgfmt]
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|     args += extra_args
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|     args.append(filename)
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| 
 | |
|     output = qemu_img_pipe(*args)
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|     if not filter_path:
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|         filter_path = filename
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|     log(filter_img_info(output, filter_path))
 | |
| 
 | |
| def qemu_io(*args):
 | |
|     '''Run qemu-io and return the stdout data'''
 | |
|     args = qemu_io_args + list(args)
 | |
|     subp = subprocess.Popen(args, stdout=subprocess.PIPE,
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|                             stderr=subprocess.STDOUT,
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|                             universal_newlines=True)
 | |
|     output = subp.communicate()[0]
 | |
|     if subp.returncode < 0:
 | |
|         sys.stderr.write('qemu-io received signal %i: %s\n'
 | |
|                          % (-subp.returncode, ' '.join(args)))
 | |
|     return output
 | |
| 
 | |
| def qemu_io_log(*args):
 | |
|     result = qemu_io(*args)
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|     log(result, filters=[filter_testfiles, filter_qemu_io])
 | |
|     return result
 | |
| 
 | |
| def qemu_io_silent(*args):
 | |
|     '''Run qemu-io and return the exit code, suppressing stdout'''
 | |
|     args = qemu_io_args + list(args)
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|     exitcode = subprocess.call(args, stdout=open('/dev/null', 'w'))
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|     if exitcode < 0:
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|         sys.stderr.write('qemu-io received signal %i: %s\n' %
 | |
|                          (-exitcode, ' '.join(args)))
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|     return exitcode
 | |
| 
 | |
| def qemu_io_silent_check(*args):
 | |
|     '''Run qemu-io and return the true if subprocess returned 0'''
 | |
|     args = qemu_io_args + list(args)
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|     exitcode = subprocess.call(args, stdout=open('/dev/null', 'w'),
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|                                stderr=subprocess.STDOUT)
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|     return exitcode == 0
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| 
 | |
| def get_virtio_scsi_device():
 | |
|     if qemu_default_machine == 's390-ccw-virtio':
 | |
|         return 'virtio-scsi-ccw'
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|     return 'virtio-scsi-pci'
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| 
 | |
| class QemuIoInteractive:
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|     def __init__(self, *args):
 | |
|         self.args = qemu_io_args_no_fmt + list(args)
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|         self._p = subprocess.Popen(self.args, stdin=subprocess.PIPE,
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|                                    stdout=subprocess.PIPE,
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|                                    stderr=subprocess.STDOUT,
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|                                    universal_newlines=True)
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|         out = self._p.stdout.read(9)
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|         if out != 'qemu-io> ':
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|             # Most probably qemu-io just failed to start.
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|             # Let's collect the whole output and exit.
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|             out += self._p.stdout.read()
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|             self._p.wait(timeout=1)
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|             raise ValueError(out)
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| 
 | |
|     def close(self):
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|         self._p.communicate('q\n')
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| 
 | |
|     def _read_output(self):
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|         pattern = 'qemu-io> '
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|         n = len(pattern)
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|         pos = 0
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|         s = []
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|         while pos != n:
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|             c = self._p.stdout.read(1)
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|             # check unexpected EOF
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|             assert c != ''
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|             s.append(c)
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|             if c == pattern[pos]:
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|                 pos += 1
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|             else:
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|                 pos = 0
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| 
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|         return ''.join(s[:-n])
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| 
 | |
|     def cmd(self, cmd):
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|         # quit command is in close(), '\n' is added automatically
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|         assert '\n' not in cmd
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|         cmd = cmd.strip()
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|         assert cmd not in ('q', 'quit')
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|         self._p.stdin.write(cmd + '\n')
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|         self._p.stdin.flush()
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|         return self._read_output()
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| 
 | |
| 
 | |
| def qemu_nbd(*args):
 | |
|     '''Run qemu-nbd in daemon mode and return the parent's exit code'''
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|     return subprocess.call(qemu_nbd_args + ['--fork'] + list(args))
 | |
| 
 | |
| def qemu_nbd_early_pipe(*args: str) -> Tuple[int, str]:
 | |
|     '''Run qemu-nbd in daemon mode and return both the parent's exit code
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|        and its output in case of an error'''
 | |
|     full_args = qemu_nbd_args + ['--fork'] + list(args)
 | |
|     output, returncode = qemu_tool_pipe_and_status('qemu-nbd', full_args,
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|                                                    connect_stderr=False)
 | |
|     return returncode, output if returncode else ''
 | |
| 
 | |
| def qemu_nbd_list_log(*args: str) -> str:
 | |
|     '''Run qemu-nbd to list remote exports'''
 | |
|     full_args = [qemu_nbd_prog, '-L'] + list(args)
 | |
|     output, _ = qemu_tool_pipe_and_status('qemu-nbd', full_args)
 | |
|     log(output, filters=[filter_testfiles, filter_nbd_exports])
 | |
|     return output
 | |
| 
 | |
| @contextmanager
 | |
| def qemu_nbd_popen(*args):
 | |
|     '''Context manager running qemu-nbd within the context'''
 | |
|     pid_file = file_path("pid")
 | |
| 
 | |
|     cmd = list(qemu_nbd_args)
 | |
|     cmd.extend(('--persistent', '--pid-file', pid_file))
 | |
|     cmd.extend(args)
 | |
| 
 | |
|     log('Start NBD server')
 | |
|     p = subprocess.Popen(cmd)
 | |
|     try:
 | |
|         while not os.path.exists(pid_file):
 | |
|             if p.poll() is not None:
 | |
|                 raise RuntimeError(
 | |
|                     "qemu-nbd terminated with exit code {}: {}"
 | |
|                     .format(p.returncode, ' '.join(cmd)))
 | |
| 
 | |
|             time.sleep(0.01)
 | |
|         yield
 | |
|     finally:
 | |
|         log('Kill NBD server')
 | |
|         p.kill()
 | |
|         p.wait()
 | |
| 
 | |
| def compare_images(img1, img2, fmt1=imgfmt, fmt2=imgfmt):
 | |
|     '''Return True if two image files are identical'''
 | |
|     return qemu_img('compare', '-f', fmt1,
 | |
|                     '-F', fmt2, img1, img2) == 0
 | |
| 
 | |
| def create_image(name, size):
 | |
|     '''Create a fully-allocated raw image with sector markers'''
 | |
|     file = open(name, 'wb')
 | |
|     i = 0
 | |
|     while i < size:
 | |
|         sector = struct.pack('>l504xl', i // 512, i // 512)
 | |
|         file.write(sector)
 | |
|         i = i + 512
 | |
|     file.close()
 | |
| 
 | |
| def image_size(img):
 | |
|     '''Return image's virtual size'''
 | |
|     r = qemu_img_pipe('info', '--output=json', '-f', imgfmt, img)
 | |
|     return json.loads(r)['virtual-size']
 | |
| 
 | |
| def is_str(val):
 | |
|     return isinstance(val, str)
 | |
| 
 | |
| test_dir_re = re.compile(r"%s" % test_dir)
 | |
| def filter_test_dir(msg):
 | |
|     return test_dir_re.sub("TEST_DIR", msg)
 | |
| 
 | |
| win32_re = re.compile(r"\r")
 | |
| def filter_win32(msg):
 | |
|     return win32_re.sub("", msg)
 | |
| 
 | |
| qemu_io_re = re.compile(r"[0-9]* ops; [0-9\/:. sec]* "
 | |
|                         r"\([0-9\/.inf]* [EPTGMKiBbytes]*\/sec "
 | |
|                         r"and [0-9\/.inf]* ops\/sec\)")
 | |
| def filter_qemu_io(msg):
 | |
|     msg = filter_win32(msg)
 | |
|     return qemu_io_re.sub("X ops; XX:XX:XX.X "
 | |
|                           "(XXX YYY/sec and XXX ops/sec)", msg)
 | |
| 
 | |
| chown_re = re.compile(r"chown [0-9]+:[0-9]+")
 | |
| def filter_chown(msg):
 | |
|     return chown_re.sub("chown UID:GID", msg)
 | |
| 
 | |
| def filter_qmp_event(event):
 | |
|     '''Filter a QMP event dict'''
 | |
|     event = dict(event)
 | |
|     if 'timestamp' in event:
 | |
|         event['timestamp']['seconds'] = 'SECS'
 | |
|         event['timestamp']['microseconds'] = 'USECS'
 | |
|     return event
 | |
| 
 | |
| def filter_qmp(qmsg, filter_fn):
 | |
|     '''Given a string filter, filter a QMP object's values.
 | |
|     filter_fn takes a (key, value) pair.'''
 | |
|     # Iterate through either lists or dicts;
 | |
|     if isinstance(qmsg, list):
 | |
|         items = enumerate(qmsg)
 | |
|     else:
 | |
|         items = qmsg.items()
 | |
| 
 | |
|     for k, v in items:
 | |
|         if isinstance(v, (dict, list)):
 | |
|             qmsg[k] = filter_qmp(v, filter_fn)
 | |
|         else:
 | |
|             qmsg[k] = filter_fn(k, v)
 | |
|     return qmsg
 | |
| 
 | |
| def filter_testfiles(msg):
 | |
|     pref1 = os.path.join(test_dir, "%s-" % (os.getpid()))
 | |
|     pref2 = os.path.join(sock_dir, "%s-" % (os.getpid()))
 | |
|     return msg.replace(pref1, 'TEST_DIR/PID-').replace(pref2, 'SOCK_DIR/PID-')
 | |
| 
 | |
| def filter_qmp_testfiles(qmsg):
 | |
|     def _filter(_key, value):
 | |
|         if is_str(value):
 | |
|             return filter_testfiles(value)
 | |
|         return value
 | |
|     return filter_qmp(qmsg, _filter)
 | |
| 
 | |
| def filter_generated_node_ids(msg):
 | |
|     return re.sub("#block[0-9]+", "NODE_NAME", msg)
 | |
| 
 | |
| def filter_img_info(output, filename):
 | |
|     lines = []
 | |
|     for line in output.split('\n'):
 | |
|         if 'disk size' in line or 'actual-size' in line:
 | |
|             continue
 | |
|         line = line.replace(filename, 'TEST_IMG')
 | |
|         line = filter_testfiles(line)
 | |
|         line = line.replace(imgfmt, 'IMGFMT')
 | |
|         line = re.sub('iters: [0-9]+', 'iters: XXX', line)
 | |
|         line = re.sub('uuid: [-a-f0-9]+',
 | |
|                       'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX',
 | |
|                       line)
 | |
|         line = re.sub('cid: [0-9]+', 'cid: XXXXXXXXXX', line)
 | |
|         lines.append(line)
 | |
|     return '\n'.join(lines)
 | |
| 
 | |
| def filter_imgfmt(msg):
 | |
|     return msg.replace(imgfmt, 'IMGFMT')
 | |
| 
 | |
| def filter_qmp_imgfmt(qmsg):
 | |
|     def _filter(_key, value):
 | |
|         if is_str(value):
 | |
|             return filter_imgfmt(value)
 | |
|         return value
 | |
|     return filter_qmp(qmsg, _filter)
 | |
| 
 | |
| def filter_nbd_exports(output: str) -> str:
 | |
|     return re.sub(r'((min|opt|max) block): [0-9]+', r'\1: XXX', output)
 | |
| 
 | |
| 
 | |
| Msg = TypeVar('Msg', Dict[str, Any], List[Any], str)
 | |
| 
 | |
| def log(msg: Msg,
 | |
|         filters: Iterable[Callable[[Msg], Msg]] = (),
 | |
|         indent: Optional[int] = None) -> None:
 | |
|     """
 | |
|     Logs either a string message or a JSON serializable message (like QMP).
 | |
|     If indent is provided, JSON serializable messages are pretty-printed.
 | |
|     """
 | |
|     for flt in filters:
 | |
|         msg = flt(msg)
 | |
|     if isinstance(msg, (dict, list)):
 | |
|         # Don't sort if it's already sorted
 | |
|         do_sort = not isinstance(msg, OrderedDict)
 | |
|         test_logger.info(json.dumps(msg, sort_keys=do_sort, indent=indent))
 | |
|     else:
 | |
|         test_logger.info(msg)
 | |
| 
 | |
| class Timeout:
 | |
|     def __init__(self, seconds, errmsg="Timeout"):
 | |
|         self.seconds = seconds
 | |
|         self.errmsg = errmsg
 | |
|     def __enter__(self):
 | |
|         signal.signal(signal.SIGALRM, self.timeout)
 | |
|         signal.setitimer(signal.ITIMER_REAL, self.seconds)
 | |
|         return self
 | |
|     def __exit__(self, exc_type, value, traceback):
 | |
|         signal.setitimer(signal.ITIMER_REAL, 0)
 | |
|         return False
 | |
|     def timeout(self, signum, frame):
 | |
|         raise Exception(self.errmsg)
 | |
| 
 | |
| def file_pattern(name):
 | |
|     return "{0}-{1}".format(os.getpid(), name)
 | |
| 
 | |
| class FilePath:
 | |
|     """
 | |
|     Context manager generating multiple file names. The generated files are
 | |
|     removed when exiting the context.
 | |
| 
 | |
|     Example usage:
 | |
| 
 | |
|         with FilePath('a.img', 'b.img') as (img_a, img_b):
 | |
|             # Use img_a and img_b here...
 | |
| 
 | |
|         # a.img and b.img are automatically removed here.
 | |
| 
 | |
|     By default images are created in iotests.test_dir. To create sockets use
 | |
|     iotests.sock_dir:
 | |
| 
 | |
|        with FilePath('a.sock', base_dir=iotests.sock_dir) as sock:
 | |
| 
 | |
|     For convenience, calling with one argument yields a single file instead of
 | |
|     a tuple with one item.
 | |
| 
 | |
|     """
 | |
|     def __init__(self, *names, base_dir=test_dir):
 | |
|         self.paths = [os.path.join(base_dir, file_pattern(name))
 | |
|                       for name in names]
 | |
| 
 | |
|     def __enter__(self):
 | |
|         if len(self.paths) == 1:
 | |
|             return self.paths[0]
 | |
|         else:
 | |
|             return self.paths
 | |
| 
 | |
|     def __exit__(self, exc_type, exc_val, exc_tb):
 | |
|         for path in self.paths:
 | |
|             try:
 | |
|                 os.remove(path)
 | |
|             except OSError:
 | |
|                 pass
 | |
|         return False
 | |
| 
 | |
| 
 | |
| def file_path_remover():
 | |
|     for path in reversed(file_path_remover.paths):
 | |
|         try:
 | |
|             os.remove(path)
 | |
|         except OSError:
 | |
|             pass
 | |
| 
 | |
| 
 | |
| def file_path(*names, base_dir=test_dir):
 | |
|     ''' Another way to get auto-generated filename that cleans itself up.
 | |
| 
 | |
|     Use is as simple as:
 | |
| 
 | |
|     img_a, img_b = file_path('a.img', 'b.img')
 | |
|     sock = file_path('socket')
 | |
|     '''
 | |
| 
 | |
|     if not hasattr(file_path_remover, 'paths'):
 | |
|         file_path_remover.paths = []
 | |
|         atexit.register(file_path_remover)
 | |
| 
 | |
|     paths = []
 | |
|     for name in names:
 | |
|         filename = file_pattern(name)
 | |
|         path = os.path.join(base_dir, filename)
 | |
|         file_path_remover.paths.append(path)
 | |
|         paths.append(path)
 | |
| 
 | |
|     return paths[0] if len(paths) == 1 else paths
 | |
| 
 | |
| def remote_filename(path):
 | |
|     if imgproto == 'file':
 | |
|         return path
 | |
|     elif imgproto == 'ssh':
 | |
|         return "ssh://%s@127.0.0.1:22%s" % (os.environ.get('USER'), path)
 | |
|     else:
 | |
|         raise Exception("Protocol %s not supported" % (imgproto))
 | |
| 
 | |
| class VM(qtest.QEMUQtestMachine):
 | |
|     '''A QEMU VM'''
 | |
| 
 | |
|     def __init__(self, path_suffix=''):
 | |
|         name = "qemu%s-%d" % (path_suffix, os.getpid())
 | |
|         super(VM, self).__init__(qemu_prog, qemu_opts, name=name,
 | |
|                                  test_dir=test_dir,
 | |
|                                  socket_scm_helper=socket_scm_helper,
 | |
|                                  sock_dir=sock_dir)
 | |
|         self._num_drives = 0
 | |
| 
 | |
|     def add_object(self, opts):
 | |
|         self._args.append('-object')
 | |
|         self._args.append(opts)
 | |
|         return self
 | |
| 
 | |
|     def add_device(self, opts):
 | |
|         self._args.append('-device')
 | |
|         self._args.append(opts)
 | |
|         return self
 | |
| 
 | |
|     def add_drive_raw(self, opts):
 | |
|         self._args.append('-drive')
 | |
|         self._args.append(opts)
 | |
|         return self
 | |
| 
 | |
|     def add_drive(self, path, opts='', interface='virtio', img_format=imgfmt):
 | |
|         '''Add a virtio-blk drive to the VM'''
 | |
|         options = ['if=%s' % interface,
 | |
|                    'id=drive%d' % self._num_drives]
 | |
| 
 | |
|         if path is not None:
 | |
|             options.append('file=%s' % path)
 | |
|             options.append('format=%s' % img_format)
 | |
|             options.append('cache=%s' % cachemode)
 | |
|             options.append('aio=%s' % aiomode)
 | |
| 
 | |
|         if opts:
 | |
|             options.append(opts)
 | |
| 
 | |
|         if img_format == 'luks' and 'key-secret' not in opts:
 | |
|             # default luks support
 | |
|             if luks_default_secret_object not in self._args:
 | |
|                 self.add_object(luks_default_secret_object)
 | |
| 
 | |
|             options.append(luks_default_key_secret_opt)
 | |
| 
 | |
|         self._args.append('-drive')
 | |
|         self._args.append(','.join(options))
 | |
|         self._num_drives += 1
 | |
|         return self
 | |
| 
 | |
|     def add_blockdev(self, opts):
 | |
|         self._args.append('-blockdev')
 | |
|         if isinstance(opts, str):
 | |
|             self._args.append(opts)
 | |
|         else:
 | |
|             self._args.append(','.join(opts))
 | |
|         return self
 | |
| 
 | |
|     def add_incoming(self, addr):
 | |
|         self._args.append('-incoming')
 | |
|         self._args.append(addr)
 | |
|         return self
 | |
| 
 | |
|     def hmp(self, command_line: str, use_log: bool = False) -> QMPMessage:
 | |
|         cmd = 'human-monitor-command'
 | |
|         kwargs: Dict[str, Any] = {'command-line': command_line}
 | |
|         if use_log:
 | |
|             return self.qmp_log(cmd, **kwargs)
 | |
|         else:
 | |
|             return self.qmp(cmd, **kwargs)
 | |
| 
 | |
|     def pause_drive(self, drive: str, event: Optional[str] = None) -> None:
 | |
|         """Pause drive r/w operations"""
 | |
|         if not event:
 | |
|             self.pause_drive(drive, "read_aio")
 | |
|             self.pause_drive(drive, "write_aio")
 | |
|             return
 | |
|         self.hmp(f'qemu-io {drive} "break {event} bp_{drive}"')
 | |
| 
 | |
|     def resume_drive(self, drive: str) -> None:
 | |
|         """Resume drive r/w operations"""
 | |
|         self.hmp(f'qemu-io {drive} "remove_break bp_{drive}"')
 | |
| 
 | |
|     def hmp_qemu_io(self, drive: str, cmd: str,
 | |
|                     use_log: bool = False) -> QMPMessage:
 | |
|         """Write to a given drive using an HMP command"""
 | |
|         return self.hmp(f'qemu-io {drive} "{cmd}"', use_log=use_log)
 | |
| 
 | |
|     def flatten_qmp_object(self, obj, output=None, basestr=''):
 | |
|         if output is None:
 | |
|             output = dict()
 | |
|         if isinstance(obj, list):
 | |
|             for i, item in enumerate(obj):
 | |
|                 self.flatten_qmp_object(item, output, basestr + str(i) + '.')
 | |
|         elif isinstance(obj, dict):
 | |
|             for key in obj:
 | |
|                 self.flatten_qmp_object(obj[key], output, basestr + key + '.')
 | |
|         else:
 | |
|             output[basestr[:-1]] = obj # Strip trailing '.'
 | |
|         return output
 | |
| 
 | |
|     def qmp_to_opts(self, obj):
 | |
|         obj = self.flatten_qmp_object(obj)
 | |
|         output_list = list()
 | |
|         for key in obj:
 | |
|             output_list += [key + '=' + obj[key]]
 | |
|         return ','.join(output_list)
 | |
| 
 | |
|     def get_qmp_events_filtered(self, wait=60.0):
 | |
|         result = []
 | |
|         for ev in self.get_qmp_events(wait=wait):
 | |
|             result.append(filter_qmp_event(ev))
 | |
|         return result
 | |
| 
 | |
|     def qmp_log(self, cmd, filters=(), indent=None, **kwargs):
 | |
|         full_cmd = OrderedDict((
 | |
|             ("execute", cmd),
 | |
|             ("arguments", ordered_qmp(kwargs))
 | |
|         ))
 | |
|         log(full_cmd, filters, indent=indent)
 | |
|         result = self.qmp(cmd, **kwargs)
 | |
|         log(result, filters, indent=indent)
 | |
|         return result
 | |
| 
 | |
|     # Returns None on success, and an error string on failure
 | |
|     def run_job(self, job, auto_finalize=True, auto_dismiss=False,
 | |
|                 pre_finalize=None, cancel=False, wait=60.0):
 | |
|         """
 | |
|         run_job moves a job from creation through to dismissal.
 | |
| 
 | |
|         :param job: String. ID of recently-launched job
 | |
|         :param auto_finalize: Bool. True if the job was launched with
 | |
|                               auto_finalize. Defaults to True.
 | |
|         :param auto_dismiss: Bool. True if the job was launched with
 | |
|                              auto_dismiss=True. Defaults to False.
 | |
|         :param pre_finalize: Callback. A callable that takes no arguments to be
 | |
|                              invoked prior to issuing job-finalize, if any.
 | |
|         :param cancel: Bool. When true, cancels the job after the pre_finalize
 | |
|                        callback.
 | |
|         :param wait: Float. Timeout value specifying how long to wait for any
 | |
|                      event, in seconds. Defaults to 60.0.
 | |
|         """
 | |
|         match_device = {'data': {'device': job}}
 | |
|         match_id = {'data': {'id': job}}
 | |
|         events = [
 | |
|             ('BLOCK_JOB_COMPLETED', match_device),
 | |
|             ('BLOCK_JOB_CANCELLED', match_device),
 | |
|             ('BLOCK_JOB_ERROR', match_device),
 | |
|             ('BLOCK_JOB_READY', match_device),
 | |
|             ('BLOCK_JOB_PENDING', match_id),
 | |
|             ('JOB_STATUS_CHANGE', match_id)
 | |
|         ]
 | |
|         error = None
 | |
|         while True:
 | |
|             ev = filter_qmp_event(self.events_wait(events, timeout=wait))
 | |
|             if ev['event'] != 'JOB_STATUS_CHANGE':
 | |
|                 log(ev)
 | |
|                 continue
 | |
|             status = ev['data']['status']
 | |
|             if status == 'aborting':
 | |
|                 result = self.qmp('query-jobs')
 | |
|                 for j in result['return']:
 | |
|                     if j['id'] == job:
 | |
|                         error = j['error']
 | |
|                         log('Job failed: %s' % (j['error']))
 | |
|             elif status == 'ready':
 | |
|                 self.qmp_log('job-complete', id=job)
 | |
|             elif status == 'pending' and not auto_finalize:
 | |
|                 if pre_finalize:
 | |
|                     pre_finalize()
 | |
|                 if cancel:
 | |
|                     self.qmp_log('job-cancel', id=job)
 | |
|                 else:
 | |
|                     self.qmp_log('job-finalize', id=job)
 | |
|             elif status == 'concluded' and not auto_dismiss:
 | |
|                 self.qmp_log('job-dismiss', id=job)
 | |
|             elif status == 'null':
 | |
|                 return error
 | |
| 
 | |
|     # Returns None on success, and an error string on failure
 | |
|     def blockdev_create(self, options, job_id='job0', filters=None):
 | |
|         if filters is None:
 | |
|             filters = [filter_qmp_testfiles]
 | |
|         result = self.qmp_log('blockdev-create', filters=filters,
 | |
|                               job_id=job_id, options=options)
 | |
| 
 | |
|         if 'return' in result:
 | |
|             assert result['return'] == {}
 | |
|             job_result = self.run_job(job_id)
 | |
|         else:
 | |
|             job_result = result['error']
 | |
| 
 | |
|         log("")
 | |
|         return job_result
 | |
| 
 | |
|     def enable_migration_events(self, name):
 | |
|         log('Enabling migration QMP events on %s...' % name)
 | |
|         log(self.qmp('migrate-set-capabilities', capabilities=[
 | |
|             {
 | |
|                 'capability': 'events',
 | |
|                 'state': True
 | |
|             }
 | |
|         ]))
 | |
| 
 | |
|     def wait_migration(self, expect_runstate: Optional[str]) -> bool:
 | |
|         while True:
 | |
|             event = self.event_wait('MIGRATION')
 | |
|             log(event, filters=[filter_qmp_event])
 | |
|             if event['data']['status'] in ('completed', 'failed'):
 | |
|                 break
 | |
| 
 | |
|         if event['data']['status'] == 'completed':
 | |
|             # The event may occur in finish-migrate, so wait for the expected
 | |
|             # post-migration runstate
 | |
|             runstate = None
 | |
|             while runstate != expect_runstate:
 | |
|                 runstate = self.qmp('query-status')['return']['status']
 | |
|             return True
 | |
|         else:
 | |
|             return False
 | |
| 
 | |
|     def node_info(self, node_name):
 | |
|         nodes = self.qmp('query-named-block-nodes')
 | |
|         for x in nodes['return']:
 | |
|             if x['node-name'] == node_name:
 | |
|                 return x
 | |
|         return None
 | |
| 
 | |
|     def query_bitmaps(self):
 | |
|         res = self.qmp("query-named-block-nodes")
 | |
|         return {device['node-name']: device['dirty-bitmaps']
 | |
|                 for device in res['return'] if 'dirty-bitmaps' in device}
 | |
| 
 | |
|     def get_bitmap(self, node_name, bitmap_name, recording=None, bitmaps=None):
 | |
|         """
 | |
|         get a specific bitmap from the object returned by query_bitmaps.
 | |
|         :param recording: If specified, filter results by the specified value.
 | |
|         :param bitmaps: If specified, use it instead of call query_bitmaps()
 | |
|         """
 | |
|         if bitmaps is None:
 | |
|             bitmaps = self.query_bitmaps()
 | |
| 
 | |
|         for bitmap in bitmaps[node_name]:
 | |
|             if bitmap.get('name', '') == bitmap_name:
 | |
|                 if recording is None or bitmap.get('recording') == recording:
 | |
|                     return bitmap
 | |
|         return None
 | |
| 
 | |
|     def check_bitmap_status(self, node_name, bitmap_name, fields):
 | |
|         ret = self.get_bitmap(node_name, bitmap_name)
 | |
| 
 | |
|         return fields.items() <= ret.items()
 | |
| 
 | |
|     def assert_block_path(self, root, path, expected_node, graph=None):
 | |
|         """
 | |
|         Check whether the node under the given path in the block graph
 | |
|         is @expected_node.
 | |
| 
 | |
|         @root is the node name of the node where the @path is rooted.
 | |
| 
 | |
|         @path is a string that consists of child names separated by
 | |
|         slashes.  It must begin with a slash.
 | |
| 
 | |
|         Examples for @root + @path:
 | |
|           - root="qcow2-node", path="/backing/file"
 | |
|           - root="quorum-node", path="/children.2/file"
 | |
| 
 | |
|         Hypothetically, @path could be empty, in which case it would
 | |
|         point to @root.  However, in practice this case is not useful
 | |
|         and hence not allowed.
 | |
| 
 | |
|         @expected_node may be None.  (All elements of the path but the
 | |
|         leaf must still exist.)
 | |
| 
 | |
|         @graph may be None or the result of an x-debug-query-block-graph
 | |
|         call that has already been performed.
 | |
|         """
 | |
|         if graph is None:
 | |
|             graph = self.qmp('x-debug-query-block-graph')['return']
 | |
| 
 | |
|         iter_path = iter(path.split('/'))
 | |
| 
 | |
|         # Must start with a /
 | |
|         assert next(iter_path) == ''
 | |
| 
 | |
|         node = next((node for node in graph['nodes'] if node['name'] == root),
 | |
|                     None)
 | |
| 
 | |
|         # An empty @path is not allowed, so the root node must be present
 | |
|         assert node is not None, 'Root node %s not found' % root
 | |
| 
 | |
|         for child_name in iter_path:
 | |
|             assert node is not None, 'Cannot follow path %s%s' % (root, path)
 | |
| 
 | |
|             try:
 | |
|                 node_id = next(edge['child'] for edge in graph['edges']
 | |
|                                if (edge['parent'] == node['id'] and
 | |
|                                    edge['name'] == child_name))
 | |
| 
 | |
|                 node = next(node for node in graph['nodes']
 | |
|                             if node['id'] == node_id)
 | |
| 
 | |
|             except StopIteration:
 | |
|                 node = None
 | |
| 
 | |
|         if node is None:
 | |
|             assert expected_node is None, \
 | |
|                    'No node found under %s (but expected %s)' % \
 | |
|                    (path, expected_node)
 | |
|         else:
 | |
|             assert node['name'] == expected_node, \
 | |
|                    'Found node %s under %s (but expected %s)' % \
 | |
|                    (node['name'], path, expected_node)
 | |
| 
 | |
| index_re = re.compile(r'([^\[]+)\[([^\]]+)\]')
 | |
| 
 | |
| class QMPTestCase(unittest.TestCase):
 | |
|     '''Abstract base class for QMP test cases'''
 | |
| 
 | |
|     def __init__(self, *args, **kwargs):
 | |
|         super().__init__(*args, **kwargs)
 | |
|         # Many users of this class set a VM property we rely on heavily
 | |
|         # in the methods below.
 | |
|         self.vm = None
 | |
| 
 | |
|     def dictpath(self, d, path):
 | |
|         '''Traverse a path in a nested dict'''
 | |
|         for component in path.split('/'):
 | |
|             m = index_re.match(component)
 | |
|             if m:
 | |
|                 component, idx = m.groups()
 | |
|                 idx = int(idx)
 | |
| 
 | |
|             if not isinstance(d, dict) or component not in d:
 | |
|                 self.fail(f'failed path traversal for "{path}" in "{d}"')
 | |
|             d = d[component]
 | |
| 
 | |
|             if m:
 | |
|                 if not isinstance(d, list):
 | |
|                     self.fail(f'path component "{component}" in "{path}" '
 | |
|                               f'is not a list in "{d}"')
 | |
|                 try:
 | |
|                     d = d[idx]
 | |
|                 except IndexError:
 | |
|                     self.fail(f'invalid index "{idx}" in path "{path}" '
 | |
|                               f'in "{d}"')
 | |
|         return d
 | |
| 
 | |
|     def assert_qmp_absent(self, d, path):
 | |
|         try:
 | |
|             result = self.dictpath(d, path)
 | |
|         except AssertionError:
 | |
|             return
 | |
|         self.fail('path "%s" has value "%s"' % (path, str(result)))
 | |
| 
 | |
|     def assert_qmp(self, d, path, value):
 | |
|         '''Assert that the value for a specific path in a QMP dict
 | |
|            matches.  When given a list of values, assert that any of
 | |
|            them matches.'''
 | |
| 
 | |
|         result = self.dictpath(d, path)
 | |
| 
 | |
|         # [] makes no sense as a list of valid values, so treat it as
 | |
|         # an actual single value.
 | |
|         if isinstance(value, list) and value != []:
 | |
|             for v in value:
 | |
|                 if result == v:
 | |
|                     return
 | |
|             self.fail('no match for "%s" in %s' % (str(result), str(value)))
 | |
|         else:
 | |
|             self.assertEqual(result, value,
 | |
|                              '"%s" is "%s", expected "%s"'
 | |
|                              % (path, str(result), str(value)))
 | |
| 
 | |
|     def assert_no_active_block_jobs(self):
 | |
|         result = self.vm.qmp('query-block-jobs')
 | |
|         self.assert_qmp(result, 'return', [])
 | |
| 
 | |
|     def assert_has_block_node(self, node_name=None, file_name=None):
 | |
|         """Issue a query-named-block-nodes and assert node_name and/or
 | |
|         file_name is present in the result"""
 | |
|         def check_equal_or_none(a, b):
 | |
|             return a is None or b is None or a == b
 | |
|         assert node_name or file_name
 | |
|         result = self.vm.qmp('query-named-block-nodes')
 | |
|         for x in result["return"]:
 | |
|             if check_equal_or_none(x.get("node-name"), node_name) and \
 | |
|                     check_equal_or_none(x.get("file"), file_name):
 | |
|                 return
 | |
|         self.fail("Cannot find %s %s in result:\n%s" %
 | |
|                   (node_name, file_name, result))
 | |
| 
 | |
|     def assert_json_filename_equal(self, json_filename, reference):
 | |
|         '''Asserts that the given filename is a json: filename and that its
 | |
|            content is equal to the given reference object'''
 | |
|         self.assertEqual(json_filename[:5], 'json:')
 | |
|         self.assertEqual(
 | |
|             self.vm.flatten_qmp_object(json.loads(json_filename[5:])),
 | |
|             self.vm.flatten_qmp_object(reference)
 | |
|         )
 | |
| 
 | |
|     def cancel_and_wait(self, drive='drive0', force=False,
 | |
|                         resume=False, wait=60.0):
 | |
|         '''Cancel a block job and wait for it to finish, returning the event'''
 | |
|         result = self.vm.qmp('block-job-cancel', device=drive, force=force)
 | |
|         self.assert_qmp(result, 'return', {})
 | |
| 
 | |
|         if resume:
 | |
|             self.vm.resume_drive(drive)
 | |
| 
 | |
|         cancelled = False
 | |
|         result = None
 | |
|         while not cancelled:
 | |
|             for event in self.vm.get_qmp_events(wait=wait):
 | |
|                 if event['event'] == 'BLOCK_JOB_COMPLETED' or \
 | |
|                    event['event'] == 'BLOCK_JOB_CANCELLED':
 | |
|                     self.assert_qmp(event, 'data/device', drive)
 | |
|                     result = event
 | |
|                     cancelled = True
 | |
|                 elif event['event'] == 'JOB_STATUS_CHANGE':
 | |
|                     self.assert_qmp(event, 'data/id', drive)
 | |
| 
 | |
| 
 | |
|         self.assert_no_active_block_jobs()
 | |
|         return result
 | |
| 
 | |
|     def wait_until_completed(self, drive='drive0', check_offset=True,
 | |
|                              wait=60.0, error=None):
 | |
|         '''Wait for a block job to finish, returning the event'''
 | |
|         while True:
 | |
|             for event in self.vm.get_qmp_events(wait=wait):
 | |
|                 if event['event'] == 'BLOCK_JOB_COMPLETED':
 | |
|                     self.assert_qmp(event, 'data/device', drive)
 | |
|                     if error is None:
 | |
|                         self.assert_qmp_absent(event, 'data/error')
 | |
|                         if check_offset:
 | |
|                             self.assert_qmp(event, 'data/offset',
 | |
|                                             event['data']['len'])
 | |
|                     else:
 | |
|                         self.assert_qmp(event, 'data/error', error)
 | |
|                     self.assert_no_active_block_jobs()
 | |
|                     return event
 | |
|                 if event['event'] == 'JOB_STATUS_CHANGE':
 | |
|                     self.assert_qmp(event, 'data/id', drive)
 | |
| 
 | |
|     def wait_ready(self, drive='drive0'):
 | |
|         """Wait until a BLOCK_JOB_READY event, and return the event."""
 | |
|         return self.vm.events_wait([
 | |
|             ('BLOCK_JOB_READY',
 | |
|              {'data': {'type': 'mirror', 'device': drive}}),
 | |
|             ('BLOCK_JOB_READY',
 | |
|              {'data': {'type': 'commit', 'device': drive}})
 | |
|         ])
 | |
| 
 | |
|     def wait_ready_and_cancel(self, drive='drive0'):
 | |
|         self.wait_ready(drive=drive)
 | |
|         event = self.cancel_and_wait(drive=drive)
 | |
|         self.assertEqual(event['event'], 'BLOCK_JOB_COMPLETED')
 | |
|         self.assert_qmp(event, 'data/type', 'mirror')
 | |
|         self.assert_qmp(event, 'data/offset', event['data']['len'])
 | |
| 
 | |
|     def complete_and_wait(self, drive='drive0', wait_ready=True,
 | |
|                           completion_error=None):
 | |
|         '''Complete a block job and wait for it to finish'''
 | |
|         if wait_ready:
 | |
|             self.wait_ready(drive=drive)
 | |
| 
 | |
|         result = self.vm.qmp('block-job-complete', device=drive)
 | |
|         self.assert_qmp(result, 'return', {})
 | |
| 
 | |
|         event = self.wait_until_completed(drive=drive, error=completion_error)
 | |
|         self.assertTrue(event['data']['type'] in ['mirror', 'commit'])
 | |
| 
 | |
|     def pause_wait(self, job_id='job0'):
 | |
|         with Timeout(3, "Timeout waiting for job to pause"):
 | |
|             while True:
 | |
|                 result = self.vm.qmp('query-block-jobs')
 | |
|                 found = False
 | |
|                 for job in result['return']:
 | |
|                     if job['device'] == job_id:
 | |
|                         found = True
 | |
|                         if job['paused'] and not job['busy']:
 | |
|                             return job
 | |
|                         break
 | |
|                 assert found
 | |
| 
 | |
|     def pause_job(self, job_id='job0', wait=True):
 | |
|         result = self.vm.qmp('block-job-pause', device=job_id)
 | |
|         self.assert_qmp(result, 'return', {})
 | |
|         if wait:
 | |
|             return self.pause_wait(job_id)
 | |
|         return result
 | |
| 
 | |
|     def case_skip(self, reason):
 | |
|         '''Skip this test case'''
 | |
|         case_notrun(reason)
 | |
|         self.skipTest(reason)
 | |
| 
 | |
| 
 | |
| def notrun(reason):
 | |
|     '''Skip this test suite'''
 | |
|     # Each test in qemu-iotests has a number ("seq")
 | |
|     seq = os.path.basename(sys.argv[0])
 | |
| 
 | |
|     open('%s/%s.notrun' % (output_dir, seq), 'w').write(reason + '\n')
 | |
|     logger.warning("%s not run: %s", seq, reason)
 | |
|     sys.exit(0)
 | |
| 
 | |
| def case_notrun(reason):
 | |
|     '''Mark this test case as not having been run (without actually
 | |
|     skipping it, that is left to the caller).  See
 | |
|     QMPTestCase.case_skip() for a variant that actually skips the
 | |
|     current test case.'''
 | |
| 
 | |
|     # Each test in qemu-iotests has a number ("seq")
 | |
|     seq = os.path.basename(sys.argv[0])
 | |
| 
 | |
|     open('%s/%s.casenotrun' % (output_dir, seq), 'a').write(
 | |
|         '    [case not run] ' + reason + '\n')
 | |
| 
 | |
| def _verify_image_format(supported_fmts: Sequence[str] = (),
 | |
|                          unsupported_fmts: Sequence[str] = ()) -> None:
 | |
|     if 'generic' in supported_fmts and \
 | |
|             os.environ.get('IMGFMT_GENERIC', 'true') == 'true':
 | |
|         # similar to
 | |
|         #   _supported_fmt generic
 | |
|         # for bash tests
 | |
|         supported_fmts = ()
 | |
| 
 | |
|     not_sup = supported_fmts and (imgfmt not in supported_fmts)
 | |
|     if not_sup or (imgfmt in unsupported_fmts):
 | |
|         notrun('not suitable for this image format: %s' % imgfmt)
 | |
| 
 | |
|     if imgfmt == 'luks':
 | |
|         verify_working_luks()
 | |
| 
 | |
| def _verify_protocol(supported: Sequence[str] = (),
 | |
|                      unsupported: Sequence[str] = ()) -> None:
 | |
|     assert not (supported and unsupported)
 | |
| 
 | |
|     if 'generic' in supported:
 | |
|         return
 | |
| 
 | |
|     not_sup = supported and (imgproto not in supported)
 | |
|     if not_sup or (imgproto in unsupported):
 | |
|         notrun('not suitable for this protocol: %s' % imgproto)
 | |
| 
 | |
| def _verify_platform(supported: Sequence[str] = (),
 | |
|                      unsupported: Sequence[str] = ()) -> None:
 | |
|     if any((sys.platform.startswith(x) for x in unsupported)):
 | |
|         notrun('not suitable for this OS: %s' % sys.platform)
 | |
| 
 | |
|     if supported:
 | |
|         if not any((sys.platform.startswith(x) for x in supported)):
 | |
|             notrun('not suitable for this OS: %s' % sys.platform)
 | |
| 
 | |
| def _verify_cache_mode(supported_cache_modes: Sequence[str] = ()) -> None:
 | |
|     if supported_cache_modes and (cachemode not in supported_cache_modes):
 | |
|         notrun('not suitable for this cache mode: %s' % cachemode)
 | |
| 
 | |
| def _verify_aio_mode(supported_aio_modes: Sequence[str] = ()) -> None:
 | |
|     if supported_aio_modes and (aiomode not in supported_aio_modes):
 | |
|         notrun('not suitable for this aio mode: %s' % aiomode)
 | |
| 
 | |
| def supports_quorum():
 | |
|     return 'quorum' in qemu_img_pipe('--help')
 | |
| 
 | |
| def verify_quorum():
 | |
|     '''Skip test suite if quorum support is not available'''
 | |
|     if not supports_quorum():
 | |
|         notrun('quorum support missing')
 | |
| 
 | |
| def has_working_luks() -> Tuple[bool, str]:
 | |
|     """
 | |
|     Check whether our LUKS driver can actually create images
 | |
|     (this extends to LUKS encryption for qcow2).
 | |
| 
 | |
|     If not, return the reason why.
 | |
|     """
 | |
| 
 | |
|     img_file = f'{test_dir}/luks-test.luks'
 | |
|     (output, status) = \
 | |
|         qemu_img_pipe_and_status('create', '-f', 'luks',
 | |
|                                  '--object', luks_default_secret_object,
 | |
|                                  '-o', luks_default_key_secret_opt,
 | |
|                                  '-o', 'iter-time=10',
 | |
|                                  img_file, '1G')
 | |
|     try:
 | |
|         os.remove(img_file)
 | |
|     except OSError:
 | |
|         pass
 | |
| 
 | |
|     if status != 0:
 | |
|         reason = output
 | |
|         for line in output.splitlines():
 | |
|             if img_file + ':' in line:
 | |
|                 reason = line.split(img_file + ':', 1)[1].strip()
 | |
|                 break
 | |
| 
 | |
|         return (False, reason)
 | |
|     else:
 | |
|         return (True, '')
 | |
| 
 | |
| def verify_working_luks():
 | |
|     """
 | |
|     Skip test suite if LUKS does not work
 | |
|     """
 | |
|     (working, reason) = has_working_luks()
 | |
|     if not working:
 | |
|         notrun(reason)
 | |
| 
 | |
| def qemu_pipe(*args: str) -> str:
 | |
|     """
 | |
|     Run qemu with an option to print something and exit (e.g. a help option).
 | |
| 
 | |
|     :return: QEMU's stdout output.
 | |
|     """
 | |
|     full_args = [qemu_prog] + qemu_opts + list(args)
 | |
|     output, _ = qemu_tool_pipe_and_status('qemu', full_args)
 | |
|     return output
 | |
| 
 | |
| def supported_formats(read_only=False):
 | |
|     '''Set 'read_only' to True to check ro-whitelist
 | |
|        Otherwise, rw-whitelist is checked'''
 | |
| 
 | |
|     if not hasattr(supported_formats, "formats"):
 | |
|         supported_formats.formats = {}
 | |
| 
 | |
|     if read_only not in supported_formats.formats:
 | |
|         format_message = qemu_pipe("-drive", "format=help")
 | |
|         line = 1 if read_only else 0
 | |
|         supported_formats.formats[read_only] = \
 | |
|             format_message.splitlines()[line].split(":")[1].split()
 | |
| 
 | |
|     return supported_formats.formats[read_only]
 | |
| 
 | |
| def skip_if_unsupported(required_formats=(), read_only=False):
 | |
|     '''Skip Test Decorator
 | |
|        Runs the test if all the required formats are whitelisted'''
 | |
|     def skip_test_decorator(func):
 | |
|         def func_wrapper(test_case: QMPTestCase, *args: List[Any],
 | |
|                          **kwargs: Dict[str, Any]) -> None:
 | |
|             if callable(required_formats):
 | |
|                 fmts = required_formats(test_case)
 | |
|             else:
 | |
|                 fmts = required_formats
 | |
| 
 | |
|             usf_list = list(set(fmts) - set(supported_formats(read_only)))
 | |
|             if usf_list:
 | |
|                 msg = f'{test_case}: formats {usf_list} are not whitelisted'
 | |
|                 test_case.case_skip(msg)
 | |
|             else:
 | |
|                 func(test_case, *args, **kwargs)
 | |
|         return func_wrapper
 | |
|     return skip_test_decorator
 | |
| 
 | |
| def skip_for_formats(formats: Sequence[str] = ()) \
 | |
|     -> Callable[[Callable[[QMPTestCase, List[Any], Dict[str, Any]], None]],
 | |
|                 Callable[[QMPTestCase, List[Any], Dict[str, Any]], None]]:
 | |
|     '''Skip Test Decorator
 | |
|        Skips the test for the given formats'''
 | |
|     def skip_test_decorator(func):
 | |
|         def func_wrapper(test_case: QMPTestCase, *args: List[Any],
 | |
|                          **kwargs: Dict[str, Any]) -> None:
 | |
|             if imgfmt in formats:
 | |
|                 msg = f'{test_case}: Skipped for format {imgfmt}'
 | |
|                 test_case.case_skip(msg)
 | |
|             else:
 | |
|                 func(test_case, *args, **kwargs)
 | |
|         return func_wrapper
 | |
|     return skip_test_decorator
 | |
| 
 | |
| def skip_if_user_is_root(func):
 | |
|     '''Skip Test Decorator
 | |
|        Runs the test only without root permissions'''
 | |
|     def func_wrapper(*args, **kwargs):
 | |
|         if os.getuid() == 0:
 | |
|             case_notrun('{}: cannot be run as root'.format(args[0]))
 | |
|             return None
 | |
|         else:
 | |
|             return func(*args, **kwargs)
 | |
|     return func_wrapper
 | |
| 
 | |
| def execute_unittest(debug=False):
 | |
|     """Executes unittests within the calling module."""
 | |
| 
 | |
|     verbosity = 2 if debug else 1
 | |
| 
 | |
|     if debug:
 | |
|         output = sys.stdout
 | |
|     else:
 | |
|         # We need to filter out the time taken from the output so that
 | |
|         # qemu-iotest can reliably diff the results against master output.
 | |
|         output = io.StringIO()
 | |
| 
 | |
|     runner = unittest.TextTestRunner(stream=output, descriptions=True,
 | |
|                                      verbosity=verbosity)
 | |
|     try:
 | |
|         # unittest.main() will use sys.exit(); so expect a SystemExit
 | |
|         # exception
 | |
|         unittest.main(testRunner=runner)
 | |
|     finally:
 | |
|         # We need to filter out the time taken from the output so that
 | |
|         # qemu-iotest can reliably diff the results against master output.
 | |
|         if not debug:
 | |
|             out = output.getvalue()
 | |
|             out = re.sub(r'Ran (\d+) tests? in [\d.]+s', r'Ran \1 tests', out)
 | |
| 
 | |
|             # Hide skipped tests from the reference output
 | |
|             out = re.sub(r'OK \(skipped=\d+\)', 'OK', out)
 | |
|             out_first_line, out_rest = out.split('\n', 1)
 | |
|             out = out_first_line.replace('s', '.') + '\n' + out_rest
 | |
| 
 | |
|             sys.stderr.write(out)
 | |
| 
 | |
| def execute_setup_common(supported_fmts: Sequence[str] = (),
 | |
|                          supported_platforms: Sequence[str] = (),
 | |
|                          supported_cache_modes: Sequence[str] = (),
 | |
|                          supported_aio_modes: Sequence[str] = (),
 | |
|                          unsupported_fmts: Sequence[str] = (),
 | |
|                          supported_protocols: Sequence[str] = (),
 | |
|                          unsupported_protocols: Sequence[str] = ()) -> bool:
 | |
|     """
 | |
|     Perform necessary setup for either script-style or unittest-style tests.
 | |
| 
 | |
|     :return: Bool; Whether or not debug mode has been requested via the CLI.
 | |
|     """
 | |
|     # Note: Python 3.6 and pylint do not like 'Collection' so use 'Sequence'.
 | |
| 
 | |
|     # We are using TEST_DIR and QEMU_DEFAULT_MACHINE as proxies to
 | |
|     # indicate that we're not being run via "check". There may be
 | |
|     # other things set up by "check" that individual test cases rely
 | |
|     # on.
 | |
|     if test_dir is None or qemu_default_machine is None:
 | |
|         sys.stderr.write('Please run this test via the "check" script\n')
 | |
|         sys.exit(os.EX_USAGE)
 | |
| 
 | |
|     debug = '-d' in sys.argv
 | |
|     if debug:
 | |
|         sys.argv.remove('-d')
 | |
|     logging.basicConfig(level=(logging.DEBUG if debug else logging.WARN))
 | |
| 
 | |
|     _verify_image_format(supported_fmts, unsupported_fmts)
 | |
|     _verify_protocol(supported_protocols, unsupported_protocols)
 | |
|     _verify_platform(supported=supported_platforms)
 | |
|     _verify_cache_mode(supported_cache_modes)
 | |
|     _verify_aio_mode(supported_aio_modes)
 | |
| 
 | |
|     return debug
 | |
| 
 | |
| def execute_test(*args, test_function=None, **kwargs):
 | |
|     """Run either unittest or script-style tests."""
 | |
| 
 | |
|     debug = execute_setup_common(*args, **kwargs)
 | |
|     if not test_function:
 | |
|         execute_unittest(debug)
 | |
|     else:
 | |
|         test_function()
 | |
| 
 | |
| def activate_logging():
 | |
|     """Activate iotests.log() output to stdout for script-style tests."""
 | |
|     handler = logging.StreamHandler(stream=sys.stdout)
 | |
|     formatter = logging.Formatter('%(message)s')
 | |
|     handler.setFormatter(formatter)
 | |
|     test_logger.addHandler(handler)
 | |
|     test_logger.setLevel(logging.INFO)
 | |
|     test_logger.propagate = False
 | |
| 
 | |
| # This is called from script-style iotests without a single point of entry
 | |
| def script_initialize(*args, **kwargs):
 | |
|     """Initialize script-style tests without running any tests."""
 | |
|     activate_logging()
 | |
|     execute_setup_common(*args, **kwargs)
 | |
| 
 | |
| # This is called from script-style iotests with a single point of entry
 | |
| def script_main(test_function, *args, **kwargs):
 | |
|     """Run script-style tests outside of the unittest framework"""
 | |
|     activate_logging()
 | |
|     execute_test(*args, test_function=test_function, **kwargs)
 | |
| 
 | |
| # This is called from unittest style iotests
 | |
| def main(*args, **kwargs):
 | |
|     """Run tests using the unittest framework"""
 | |
|     execute_test(*args, **kwargs)
 |