def METHOD_NAME(self):
    self.drives = [
        FakeDrive(
            name='sda',
            serial='scsi0000',
            alias='ua-0000'
        ),
        FakeDrive(
            name='vdb',
            serial='virtio0000',
            alias='ua-2001'
        ),
    ]
    self.devices_conf = [
        {'alias': 'dimm0', 'type': 'memory', 'size': 1024},
        {'alias': 'ac97', 'type': 'sound'}
    ]
    self.devices = common.empty_dev_map()
    self.device_xml = xmlutils.fromstring("""
        <devices>
          <disk><alias name='ua-1'/></disk>
          <hostdev><alias name='ua-2'/></hostdev>
          <interface><alias name='ua-3'/></interface>
        </devices>
    """)