tests/qemu-iotests/129

   1 #!/usr/bin/env python
   2 #
   3 # Tests that "bdrv_drain_all" doesn't drain block jobs
   4 #
   5 # Copyright (C) 2015 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 import os
  22 import iotests
  23 import time
  24
  25 class TestStopWithBlockJob(iotests.QMPTestCase):
  26     test_img = os.path.join(iotests.test_dir, 'test.img')
  27     target_img = os.path.join(iotests.test_dir, 'target.img')
  28     base_img = os.path.join(iotests.test_dir, 'base.img')
  29
  30     def setUp(self):
  31         iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, "1G")
  32         iotests.qemu_img('create', '-f', iotests.imgfmt, self.test_img, "-b", self.base_img)
  33         iotests.qemu_io('-f', iotests.imgfmt, '-c', 'write -P0x5d 1M 128M', self.test_img)
  34         self.vm = iotests.VM().add_drive(self.test_img)
  35         self.vm.launch()
  36
  37     def tearDown(self):
  38         params = {"device": "drive0",
  39                   "bps": 0,
  40                   "bps_rd": 0,
  41                   "bps_wr": 0,
  42                   "iops": 0,
  43                   "iops_rd": 0,
  44                   "iops_wr": 0,
  45                  }
  46         result = self.vm.qmp("block_set_io_throttle", conv_keys=False,
  47                              **params)
  48         self.vm.shutdown()
  49
  50     def do_test_stop(self, cmd, **args):
  51         """Test 'stop' while block job is running on a throttled drive.
  52         The 'stop' command shouldn't drain the job"""
  53         params = {"device": "drive0",
  54                   "bps": 1024,
  55                   "bps_rd": 0,
  56                   "bps_wr": 0,
  57                   "iops": 0,
  58                   "iops_rd": 0,
  59                   "iops_wr": 0,
  60                  }
  61         result = self.vm.qmp("block_set_io_throttle", conv_keys=False,
  62                              **params)
  63         self.assert_qmp(result, 'return', {})
  64         result = self.vm.qmp(cmd, **args)
  65         self.assert_qmp(result, 'return', {})
  66         result = self.vm.qmp("stop")
  67         self.assert_qmp(result, 'return', {})
  68         result = self.vm.qmp("query-block-jobs")
  69         self.assert_qmp(result, 'return[0]/busy', True)
  70         self.assert_qmp(result, 'return[0]/ready', False)
  71
  72     def test_drive_mirror(self):
  73         self.do_test_stop("drive-mirror", device="drive0",
  74                           target=self.target_img,
  75                           sync="full")
  76
  77     def test_drive_backup(self):
  78         self.do_test_stop("drive-backup", device="drive0",
  79                           target=self.target_img,
  80                           sync="full")
  81
  82     def test_block_commit(self):
  83         self.do_test_stop("block-commit", device="drive0")
  84
  85 if __name__ == '__main__':
  86     iotests.main(supported_fmts=["qcow2"])