#!/usr/bin/env python # # Test mirror with unmap # # Copyright (C) 2015 Red Hat, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # import time import os import iotests from iotests import qemu_img, qemu_io test_img = os.path.join(iotests.test_dir, 'test.img') target_img = os.path.join(iotests.test_dir, 'target.img') class TestSingleDrive(iotests.QMPTestCase): image_len = 2 * 1024 * 1024 # MB def setUp(self): # Write data to the image so we can compare later qemu_img('create', '-f', iotests.imgfmt, test_img, str(TestSingleDrive.image_len)) qemu_io('-f', iotests.imgfmt, '-c', 'write -P0x5d 0 2M', test_img) self.vm = iotests.VM().add_drive(test_img, 'discard=unmap') self.vm.launch() def tearDown(self): self.vm.shutdown() os.remove(test_img) try: os.remove(target_img) except OSError: pass def test_mirror_discard(self): result = self.vm.qmp('drive-mirror', device='drive0', sync='full', target=target_img) self.assert_qmp(result, 'return', {}) self.vm.hmp_qemu_io('drive0', 'discard 0 64k') self.complete_and_wait('drive0') self.vm.shutdown() self.assertTrue(iotests.compare_images(test_img, target_img), 'target image does not match source after mirroring') if __name__ == '__main__': iotests.main(supported_fmts=['raw', 'qcow2'])