cc16153f1f
pylint proposes using `[]` instead of `list()` and `{}` instead of
`dict()`, because it is faster. That seems simple enough, so heed its
advice.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20210824153540.177128-3-hreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
1436 lines
50 KiB
Python
1436 lines
50 KiB
Python
# Common utilities and Python wrappers for qemu-iotests
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#
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# 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
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# 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
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# (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
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import atexit
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import bz2
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from collections import OrderedDict
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import faulthandler
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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 shutil
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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,
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List, Optional, Sequence, TextIO, Tuple, Type, TypeVar)
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import unittest
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from contextlib import contextmanager
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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.machine 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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faulthandler.enable()
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# This will not work if arguments contain spaces but is necessary if we
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# 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'):
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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'):
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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 += \
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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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gdb_qemu_env = os.environ.get('GDB_OPTIONS')
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qemu_gdb = []
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if gdb_qemu_env:
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qemu_gdb = ['gdbserver'] + gdb_qemu_env.strip().split(' ')
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qemu_print = os.environ.get('PRINT_QEMU', False)
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imgfmt = os.environ.get('IMGFMT', 'raw')
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imgproto = os.environ.get('IMGPROTO', 'file')
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output_dir = os.environ.get('OUTPUT_DIR', '.')
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try:
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test_dir = os.environ['TEST_DIR']
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sock_dir = os.environ['SOCK_DIR']
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cachemode = os.environ['CACHEMODE']
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aiomode = os.environ['AIOMODE']
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qemu_default_machine = os.environ['QEMU_DEFAULT_MACHINE']
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except KeyError:
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# We are using these variables as proxies to indicate that we're
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# not being run via "check". There may be other things set up by
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# "check" that individual test cases rely on.
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sys.stderr.write('Please run this test via the "check" script\n')
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sys.exit(os.EX_USAGE)
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qemu_valgrind = []
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if os.environ.get('VALGRIND_QEMU') == "y" and \
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os.environ.get('NO_VALGRIND') != "y":
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valgrind_logfile = "--log-file=" + test_dir
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# %p allows to put the valgrind process PID, since
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# we don't know it a priori (subprocess.Popen is
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# not yet invoked)
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valgrind_logfile += "/%p.valgrind"
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qemu_valgrind = ['valgrind', valgrind_logfile, '--error-exitcode=99']
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socket_scm_helper = os.environ.get('SOCKET_SCM_HELPER', 'socket_scm_helper')
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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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sample_img_dir = os.environ['SAMPLE_IMG_DIR']
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def unarchive_sample_image(sample, fname):
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sample_fname = os.path.join(sample_img_dir, sample + '.bz2')
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with bz2.open(sample_fname) as f_in, open(fname, 'wb') as f_out:
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shutil.copyfileobj(f_in, f_out)
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def qemu_tool_pipe_and_status(tool: str, args: Sequence[str],
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connect_stderr: bool = True) -> Tuple[str, int]:
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"""
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Run a tool and return both its output and its exit code
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"""
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stderr = subprocess.STDOUT if connect_stderr else None
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with subprocess.Popen(args, stdout=subprocess.PIPE,
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stderr=stderr, universal_newlines=True) as subp:
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output = subp.communicate()[0]
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if subp.returncode < 0:
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cmd = ' '.join(args)
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sys.stderr.write(f'{tool} received signal \
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{-subp.returncode}: {cmd}\n')
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return (output, subp.returncode)
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def qemu_img_pipe_and_status(*args: str) -> Tuple[str, int]:
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"""
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Run qemu-img and return both its output and its exit code
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"""
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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:
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'''Run qemu-img and return the exit code'''
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return qemu_img_pipe_and_status(*args)[1]
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def ordered_qmp(qmsg, conv_keys=True):
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# Dictionaries are not ordered prior to 3.6, therefore:
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if isinstance(qmsg, list):
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return [ordered_qmp(atom) for atom in qmsg]
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if isinstance(qmsg, dict):
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od = OrderedDict()
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for k, v in sorted(qmsg.items()):
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if conv_keys:
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k = k.replace('_', '-')
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od[k] = ordered_qmp(v, conv_keys=False)
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return od
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return qmsg
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def qemu_img_create(*args):
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args = list(args)
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# default luks support
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if '-f' in args and args[args.index('-f') + 1] == 'luks':
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if '-o' in args:
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i = args.index('-o')
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if 'key-secret' not in args[i + 1]:
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args[i + 1].append(luks_default_key_secret_opt)
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args.insert(i + 2, '--object')
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args.insert(i + 3, luks_default_secret_object)
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else:
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args = ['-o', luks_default_key_secret_opt,
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'--object', luks_default_secret_object] + args
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args.insert(0, 'create')
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return qemu_img(*args)
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def qemu_img_measure(*args):
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return json.loads(qemu_img_pipe("measure", "--output", "json", *args))
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def qemu_img_check(*args):
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return json.loads(qemu_img_pipe("check", "--output", "json", *args))
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def qemu_img_verbose(*args):
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'''Run qemu-img without suppressing its output and return the exit code'''
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exitcode = subprocess.call(qemu_img_args + list(args))
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if exitcode < 0:
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sys.stderr.write('qemu-img received signal %i: %s\n'
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% (-exitcode, ' '.join(qemu_img_args + list(args))))
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return exitcode
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def qemu_img_pipe(*args: str) -> str:
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'''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):
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result = qemu_img_pipe(*args)
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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:
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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))
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def qemu_io(*args):
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'''Run qemu-io and return the stdout data'''
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args = qemu_io_args + list(args)
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return qemu_tool_pipe_and_status('qemu-io', args)[0]
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def qemu_io_log(*args):
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result = qemu_io(*args)
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log(result, filters=[filter_testfiles, filter_qemu_io])
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return result
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def qemu_io_silent(*args):
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'''Run qemu-io and return the exit code, suppressing stdout'''
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if '-f' in args or '--image-opts' in args:
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default_args = qemu_io_args_no_fmt
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else:
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default_args = qemu_io_args
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args = default_args + list(args)
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result = subprocess.run(args, stdout=subprocess.DEVNULL, check=False)
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if result.returncode < 0:
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sys.stderr.write('qemu-io received signal %i: %s\n' %
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(-result.returncode, ' '.join(args)))
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return result.returncode
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def qemu_io_silent_check(*args):
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'''Run qemu-io and return the true if subprocess returned 0'''
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args = qemu_io_args + list(args)
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result = subprocess.run(args, stdout=subprocess.DEVNULL,
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stderr=subprocess.STDOUT, check=False)
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return result.returncode == 0
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class QemuIoInteractive:
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def __init__(self, *args):
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self.args = qemu_io_args_no_fmt + list(args)
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# We need to keep the Popen objext around, and not
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# close it immediately. Therefore, disable the pylint check:
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# pylint: disable=consider-using-with
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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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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):
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'''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))
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def qemu_nbd_early_pipe(*args: str) -> Tuple[int, str]:
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'''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'''
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full_args = qemu_nbd_args + ['--fork'] + list(args)
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output, returncode = qemu_tool_pipe_and_status('qemu-nbd', full_args,
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connect_stderr=False)
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return returncode, output if returncode else ''
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def qemu_nbd_list_log(*args: str) -> str:
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'''Run qemu-nbd to list remote exports'''
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full_args = [qemu_nbd_prog, '-L'] + list(args)
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output, _ = qemu_tool_pipe_and_status('qemu-nbd', full_args)
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log(output, filters=[filter_testfiles, filter_nbd_exports])
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return output
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@contextmanager
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def qemu_nbd_popen(*args):
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'''Context manager running qemu-nbd within the context'''
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pid_file = file_path("qemu_nbd_popen-nbd-pid-file")
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assert not os.path.exists(pid_file)
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cmd = list(qemu_nbd_args)
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cmd.extend(('--persistent', '--pid-file', pid_file))
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cmd.extend(args)
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log('Start NBD server')
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with subprocess.Popen(cmd) as p:
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try:
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while not os.path.exists(pid_file):
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if p.poll() is not None:
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raise RuntimeError(
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"qemu-nbd terminated with exit code {}: {}"
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.format(p.returncode, ' '.join(cmd)))
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time.sleep(0.01)
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yield
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finally:
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if os.path.exists(pid_file):
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os.remove(pid_file)
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log('Kill NBD server')
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p.kill()
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p.wait()
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def compare_images(img1, img2, fmt1=imgfmt, fmt2=imgfmt):
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'''Return True if two image files are identical'''
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return qemu_img('compare', '-f', fmt1,
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'-F', fmt2, img1, img2) == 0
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def create_image(name, size):
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'''Create a fully-allocated raw image with sector markers'''
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with open(name, 'wb') as file:
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i = 0
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while i < size:
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sector = struct.pack('>l504xl', i // 512, i // 512)
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file.write(sector)
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i = i + 512
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def image_size(img):
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'''Return image's virtual size'''
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r = qemu_img_pipe('info', '--output=json', '-f', imgfmt, img)
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return json.loads(r)['virtual-size']
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def is_str(val):
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return isinstance(val, str)
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test_dir_re = re.compile(r"%s" % test_dir)
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def filter_test_dir(msg):
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return test_dir_re.sub("TEST_DIR", msg)
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win32_re = re.compile(r"\r")
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def filter_win32(msg):
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return win32_re.sub("", msg)
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qemu_io_re = re.compile(r"[0-9]* ops; [0-9\/:. sec]* "
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r"\([0-9\/.inf]* [EPTGMKiBbytes]*\/sec "
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r"and [0-9\/.inf]* ops\/sec\)")
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def filter_qemu_io(msg):
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msg = filter_win32(msg)
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return qemu_io_re.sub("X ops; XX:XX:XX.X "
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"(XXX YYY/sec and XXX ops/sec)", msg)
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chown_re = re.compile(r"chown [0-9]+:[0-9]+")
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def filter_chown(msg):
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return chown_re.sub("chown UID:GID", msg)
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def filter_qmp_event(event):
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'''Filter a QMP event dict'''
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event = dict(event)
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if 'timestamp' in event:
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event['timestamp']['seconds'] = 'SECS'
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event['timestamp']['microseconds'] = 'USECS'
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return event
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def filter_qmp(qmsg, filter_fn):
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'''Given a string filter, filter a QMP object's values.
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filter_fn takes a (key, value) pair.'''
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# Iterate through either lists or dicts;
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if isinstance(qmsg, list):
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items = enumerate(qmsg)
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else:
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items = qmsg.items()
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for k, v in items:
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if isinstance(v, (dict, list)):
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qmsg[k] = filter_qmp(v, filter_fn)
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else:
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qmsg[k] = filter_fn(k, v)
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return qmsg
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def filter_testfiles(msg):
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pref1 = os.path.join(test_dir, "%s-" % (os.getpid()))
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pref2 = os.path.join(sock_dir, "%s-" % (os.getpid()))
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return msg.replace(pref1, 'TEST_DIR/PID-').replace(pref2, 'SOCK_DIR/PID-')
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def filter_qmp_testfiles(qmsg):
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def _filter(_key, value):
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if is_str(value):
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return filter_testfiles(value)
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return value
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return filter_qmp(qmsg, _filter)
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def filter_virtio_scsi(output: str) -> str:
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return re.sub(r'(virtio-scsi)-(ccw|pci)', r'\1', output)
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def filter_qmp_virtio_scsi(qmsg):
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def _filter(_key, value):
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if is_str(value):
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return filter_virtio_scsi(value)
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return value
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return filter_qmp(qmsg, _filter)
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def filter_generated_node_ids(msg):
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return re.sub("#block[0-9]+", "NODE_NAME", msg)
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def filter_img_info(output, filename):
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lines = []
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for line in output.split('\n'):
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if 'disk size' in line or 'actual-size' in line:
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continue
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line = line.replace(filename, 'TEST_IMG')
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line = filter_testfiles(line)
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line = line.replace(imgfmt, 'IMGFMT')
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line = re.sub('iters: [0-9]+', 'iters: XXX', line)
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line = re.sub('uuid: [-a-f0-9]+',
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'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX',
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line)
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line = re.sub('cid: [0-9]+', 'cid: XXXXXXXXXX', line)
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lines.append(line)
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return '\n'.join(lines)
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|
|
|
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):
|
|
if qemu_gdb or qemu_valgrind:
|
|
return self
|
|
signal.signal(signal.SIGALRM, self.timeout)
|
|
signal.setitimer(signal.ITIMER_REAL, self.seconds)
|
|
return self
|
|
def __exit__(self, exc_type, value, traceback):
|
|
if qemu_gdb or qemu_valgrind:
|
|
return False
|
|
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 try_remove(img):
|
|
try:
|
|
os.remove(img)
|
|
except OSError:
|
|
pass
|
|
|
|
def file_path_remover():
|
|
for path in reversed(file_path_remover.paths):
|
|
try_remove(path)
|
|
|
|
|
|
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())
|
|
timer = 15.0 if not (qemu_gdb or qemu_valgrind) else None
|
|
if qemu_gdb and qemu_valgrind:
|
|
sys.stderr.write('gdb and valgrind are mutually exclusive\n')
|
|
sys.exit(1)
|
|
wrapper = qemu_gdb if qemu_gdb else qemu_valgrind
|
|
super().__init__(qemu_prog, qemu_opts, wrapper=wrapper,
|
|
name=name,
|
|
base_temp_dir=test_dir,
|
|
socket_scm_helper=socket_scm_helper,
|
|
sock_dir=sock_dir, qmp_timer=timer)
|
|
self._num_drives = 0
|
|
|
|
def _post_shutdown(self) -> None:
|
|
super()._post_shutdown()
|
|
if not qemu_valgrind or not self._popen:
|
|
return
|
|
valgrind_filename = f"{test_dir}/{self._popen.pid}.valgrind"
|
|
if self.exitcode() == 99:
|
|
with open(valgrind_filename, encoding='utf-8') as f:
|
|
print(f.read())
|
|
else:
|
|
os.remove(valgrind_filename)
|
|
|
|
def _pre_launch(self) -> None:
|
|
super()._pre_launch()
|
|
if qemu_print:
|
|
# set QEMU binary output to stdout
|
|
self._close_qemu_log_file()
|
|
|
|
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, qdev: bool = False) -> QMPMessage:
|
|
"""Write to a given drive using an HMP command"""
|
|
d = '-d ' if qdev else ''
|
|
return self.hmp(f'qemu-io {d}{drive} "{cmd}"', use_log=use_log)
|
|
|
|
def flatten_qmp_object(self, obj, output=None, basestr=''):
|
|
if output is None:
|
|
output = {}
|
|
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 = []
|
|
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')
|
|
# We use the default timeout, and with a timeout, event_wait()
|
|
# never returns None
|
|
assert event
|
|
|
|
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])
|
|
|
|
with open('%s/%s.notrun' % (output_dir, seq), 'w', encoding='utf-8') \
|
|
as outfile:
|
|
outfile.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])
|
|
|
|
with open('%s/%s.casenotrun' % (output_dir, seq), 'a', encoding='utf-8') \
|
|
as outfile:
|
|
outfile.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 _verify_formats(required_formats: Sequence[str] = ()) -> None:
|
|
usf_list = list(set(required_formats) - set(supported_formats()))
|
|
if usf_list:
|
|
notrun(f'formats {usf_list} are not whitelisted')
|
|
|
|
|
|
def _verify_virtio_blk() -> None:
|
|
out = qemu_pipe('-M', 'none', '-device', 'help')
|
|
if 'virtio-blk' not in out:
|
|
notrun('Missing virtio-blk in QEMU binary')
|
|
|
|
def _verify_virtio_scsi_pci_or_ccw() -> None:
|
|
out = qemu_pipe('-M', 'none', '-device', 'help')
|
|
if 'virtio-scsi-pci' not in out and 'virtio-scsi-ccw' not in out:
|
|
notrun('Missing virtio-scsi-pci or virtio-scsi-ccw in QEMU binary')
|
|
|
|
|
|
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
|
|
|
|
# We need to filter out the time taken from the output so that
|
|
# qemu-iotest can reliably diff the results against master output,
|
|
# and hide skipped tests from the reference output.
|
|
|
|
class ReproducibleTestResult(unittest.TextTestResult):
|
|
def addSkip(self, test, reason):
|
|
# Same as TextTestResult, but print dot instead of "s"
|
|
unittest.TestResult.addSkip(self, test, reason)
|
|
if self.showAll:
|
|
self.stream.writeln("skipped {0!r}".format(reason))
|
|
elif self.dots:
|
|
self.stream.write(".")
|
|
self.stream.flush()
|
|
|
|
class ReproducibleStreamWrapper:
|
|
def __init__(self, stream: TextIO):
|
|
self.stream = stream
|
|
|
|
def __getattr__(self, attr):
|
|
if attr in ('stream', '__getstate__'):
|
|
raise AttributeError(attr)
|
|
return getattr(self.stream, attr)
|
|
|
|
def write(self, arg=None):
|
|
arg = re.sub(r'Ran (\d+) tests? in [\d.]+s', r'Ran \1 tests', arg)
|
|
arg = re.sub(r' \(skipped=\d+\)', r'', arg)
|
|
self.stream.write(arg)
|
|
|
|
class ReproducibleTestRunner(unittest.TextTestRunner):
|
|
def __init__(self, stream: Optional[TextIO] = None,
|
|
resultclass: Type[unittest.TestResult] = ReproducibleTestResult,
|
|
**kwargs: Any) -> None:
|
|
rstream = ReproducibleStreamWrapper(stream or sys.stdout)
|
|
super().__init__(stream=rstream, # type: ignore
|
|
descriptions=True,
|
|
resultclass=resultclass,
|
|
**kwargs)
|
|
|
|
def execute_unittest(argv: List[str], debug: bool = False) -> None:
|
|
"""Executes unittests within the calling module."""
|
|
|
|
# Some tests have warnings, especially ResourceWarnings for unclosed
|
|
# files and sockets. Ignore them for now to ensure reproducibility of
|
|
# the test output.
|
|
unittest.main(argv=argv,
|
|
testRunner=ReproducibleTestRunner,
|
|
verbosity=2 if debug else 1,
|
|
warnings=None if sys.warnoptions else 'ignore')
|
|
|
|
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] = (),
|
|
required_fmts: 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'.
|
|
|
|
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)
|
|
_verify_formats(required_fmts)
|
|
_verify_virtio_blk()
|
|
|
|
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(sys.argv, 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)
|