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# Test class and utilities for functional tests
#
# Copyright (c) 2018 Red Hat, Inc.
#
# Author:
# Cleber Rosa <crosa@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
import sys
import uuid
import avocado
SRC_ROOT_DIR = os.path.join(os.path.dirname(__file__), '..', '..', '..')
sys.path.append(os.path.join(SRC_ROOT_DIR, 'python'))
from qemu.machine import QEMUMachine
def is_readable_executable_file(path):
return os.path.isfile(path) and os.access(path, os.R_OK | os.X_OK)
def pick_default_qemu_bin(arch=None):
"""
Picks the path of a QEMU binary, starting either in the current working
directory or in the source tree root directory.
:param arch: the arch to use when looking for a QEMU binary (the target
will match the arch given). If None (the default), arch
will be the current host system arch (as given by
:func:`os.uname`).
:type arch: str
:returns: the path to the default QEMU binary or None if one could not
be found
:rtype: str or None
"""
if arch is None:
arch = os.uname()[4]
qemu_bin_relative_path = os.path.join("%s-softmmu" % arch,
"qemu-system-%s" % arch)
if is_readable_executable_file(qemu_bin_relative_path):
return qemu_bin_relative_path
qemu_bin_from_src_dir_path = os.path.join(SRC_ROOT_DIR,
qemu_bin_relative_path)
if is_readable_executable_file(qemu_bin_from_src_dir_path):
return qemu_bin_from_src_dir_path
class Test(avocado.Test):
def setUp(self):
self._vms = {}
arches = self.tags.get('arch', [])
if len(arches) == 1:
arch = arches.pop()
else:
arch = None
self.arch = self.params.get('arch', default=arch)
default_qemu_bin = pick_default_qemu_bin(arch=self.arch)
self.qemu_bin = self.params.get('qemu_bin',
default=default_qemu_bin)
if self.qemu_bin is None:
self.cancel("No QEMU binary defined or found in the source tree")
def _new_vm(self, *args):
vm = QEMUMachine(self.qemu_bin)
if args:
vm.add_args(*args)
return vm
@property
def vm(self):
return self.get_vm(name='default')
def get_vm(self, *args, name=None):
if not name:
name = str(uuid.uuid4())
if self._vms.get(name) is None:
self._vms[name] = self._new_vm(*args)
return self._vms[name]
def tearDown(self):
for vm in self._vms.values():
vm.shutdown()
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