1*c6150917SFam Zheng#!/usr/bin/env python 2*c6150917SFam Zheng# 3*c6150917SFam Zheng# Test mirror with unmap 4*c6150917SFam Zheng# 5*c6150917SFam Zheng# Copyright (C) 2015 Red Hat, Inc. 6*c6150917SFam Zheng# 7*c6150917SFam Zheng# This program is free software; you can redistribute it and/or modify 8*c6150917SFam Zheng# it under the terms of the GNU General Public License as published by 9*c6150917SFam Zheng# the Free Software Foundation; either version 2 of the License, or 10*c6150917SFam Zheng# (at your option) any later version. 11*c6150917SFam Zheng# 12*c6150917SFam Zheng# This program is distributed in the hope that it will be useful, 13*c6150917SFam Zheng# but WITHOUT ANY WARRANTY; without even the implied warranty of 14*c6150917SFam Zheng# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15*c6150917SFam Zheng# GNU General Public License for more details. 16*c6150917SFam Zheng# 17*c6150917SFam Zheng# You should have received a copy of the GNU General Public License 18*c6150917SFam Zheng# along with this program. If not, see <http://www.gnu.org/licenses/>. 19*c6150917SFam Zheng# 20*c6150917SFam Zheng 21*c6150917SFam Zhengimport time 22*c6150917SFam Zhengimport os 23*c6150917SFam Zhengimport iotests 24*c6150917SFam Zhengfrom iotests import qemu_img, qemu_io 25*c6150917SFam Zheng 26*c6150917SFam Zhengtest_img = os.path.join(iotests.test_dir, 'test.img') 27*c6150917SFam Zhengtarget_img = os.path.join(iotests.test_dir, 'target.img') 28*c6150917SFam Zheng 29*c6150917SFam Zhengclass TestSingleDrive(iotests.QMPTestCase): 30*c6150917SFam Zheng image_len = 2 * 1024 * 1024 # MB 31*c6150917SFam Zheng 32*c6150917SFam Zheng def setUp(self): 33*c6150917SFam Zheng # Write data to the image so we can compare later 34*c6150917SFam Zheng qemu_img('create', '-f', iotests.imgfmt, test_img, str(TestSingleDrive.image_len)) 35*c6150917SFam Zheng qemu_io('-f', iotests.imgfmt, '-c', 'write -P0x5d 0 2M', test_img) 36*c6150917SFam Zheng 37*c6150917SFam Zheng self.vm = iotests.VM().add_drive(test_img, 'discard=unmap') 38*c6150917SFam Zheng self.vm.launch() 39*c6150917SFam Zheng 40*c6150917SFam Zheng def tearDown(self): 41*c6150917SFam Zheng self.vm.shutdown() 42*c6150917SFam Zheng os.remove(test_img) 43*c6150917SFam Zheng try: 44*c6150917SFam Zheng os.remove(target_img) 45*c6150917SFam Zheng except OSError: 46*c6150917SFam Zheng pass 47*c6150917SFam Zheng 48*c6150917SFam Zheng def test_mirror_discard(self): 49*c6150917SFam Zheng result = self.vm.qmp('drive-mirror', device='drive0', sync='full', 50*c6150917SFam Zheng target=target_img) 51*c6150917SFam Zheng self.assert_qmp(result, 'return', {}) 52*c6150917SFam Zheng self.vm.hmp_qemu_io('drive0', 'discard 0 64k') 53*c6150917SFam Zheng self.complete_and_wait('drive0') 54*c6150917SFam Zheng self.vm.shutdown() 55*c6150917SFam Zheng self.assertTrue(iotests.compare_images(test_img, target_img), 56*c6150917SFam Zheng 'target image does not match source after mirroring') 57*c6150917SFam Zheng 58*c6150917SFam Zhengif __name__ == '__main__': 59*c6150917SFam Zheng iotests.main(supported_fmts=['raw', 'qcow2']) 60