+class TestGranularity(iotests.QMPTestCase):
+ image_len = 10 * 1024 * 1024 # MB
+
+ def setUp(self):
+ qemu_img('create', '-f', iotests.imgfmt, test_img,
+ str(TestGranularity.image_len))
+ qemu_io('-c', 'write 0 %d' % (self.image_len),
+ test_img)
+ self.vm = iotests.VM().add_drive(test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ self.vm.shutdown()
+ self.assertTrue(iotests.compare_images(test_img, target_img),
+ 'target image does not match source after mirroring')
+ os.remove(test_img)
+ os.remove(target_img)
+
+ def test_granularity(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('drive-mirror', device='drive0',
+ sync='full', target=target_img,
+ mode='absolute-paths', granularity=8192)
+ self.assert_qmp(result, 'return', {})
+ event = self.vm.get_qmp_event(wait=60.0)
+ # Failures will manifest as COMPLETED/ERROR.
+ self.assert_qmp(event, 'event', 'BLOCK_JOB_READY')
+ self.complete_and_wait(drive='drive0', wait_ready=False)
+ self.assert_no_active_block_jobs()
+