diff options
| -rwxr-xr-x | tests/qemu-iotests/056 | 39 | ||||
| -rw-r--r-- | tests/qemu-iotests/056.out | 4 |
2 files changed, 41 insertions, 2 deletions
diff --git a/tests/qemu-iotests/056 b/tests/qemu-iotests/056 index f40fc11..e761e46 100755 --- a/tests/qemu-iotests/056 +++ b/tests/qemu-iotests/056 @@ -133,6 +133,7 @@ class BackupTest(iotests.QMPTestCase): self.vm = iotests.VM() self.test_img = img_create('test') self.dest_img = img_create('dest') + self.ref_img = img_create('ref') self.vm.add_drive(self.test_img) self.vm.launch() @@ -140,6 +141,7 @@ class BackupTest(iotests.QMPTestCase): self.vm.shutdown() try_remove(self.test_img) try_remove(self.dest_img) + try_remove(self.ref_img) def hmp_io_writes(self, drive, patterns): for pattern in patterns: @@ -177,6 +179,43 @@ class BackupTest(iotests.QMPTestCase): self.assert_qmp(event, 'data/error', qerror) return False + def test_overlapping_writes(self): + # Write something to back up + self.hmp_io_writes('drive0', [('42', '0M', '2M')]) + + # Create a reference backup + self.qmp_backup_and_wait(device='drive0', format=iotests.imgfmt, + sync='full', target=self.ref_img, + auto_dismiss=False) + res = self.vm.qmp('block-job-dismiss', id='drive0') + self.assert_qmp(res, 'return', {}) + + # Now to the test backup: We simulate the following guest + # writes: + # (1) [1M + 64k, 1M + 128k): Afterwards, everything in that + # area should be in the target image, and we must not copy + # it again (because the source image has changed now) + # (64k is the job's cluster size) + # (2) [1M, 2M): The backup job must not get overeager. It + # must copy [1M, 1M + 64k) and [1M + 128k, 2M) separately, + # but not the area in between. + + self.qmp_backup(device='drive0', format=iotests.imgfmt, sync='full', + target=self.dest_img, speed=1, auto_dismiss=False) + + self.hmp_io_writes('drive0', [('23', '%ik' % (1024 + 64), '64k'), + ('66', '1M', '1M')]) + + # Let the job complete + res = self.vm.qmp('block-job-set-speed', device='drive0', speed=0) + self.assert_qmp(res, 'return', {}) + self.qmp_backup_wait('drive0') + res = self.vm.qmp('block-job-dismiss', id='drive0') + self.assert_qmp(res, 'return', {}) + + self.assertTrue(iotests.compare_images(self.ref_img, self.dest_img), + 'target image does not match reference image') + def test_dismiss_false(self): res = self.vm.qmp('query-block-jobs') self.assert_qmp(res, 'return', []) diff --git a/tests/qemu-iotests/056.out b/tests/qemu-iotests/056.out index dae404e..36376be 100644 --- a/tests/qemu-iotests/056.out +++ b/tests/qemu-iotests/056.out @@ -1,5 +1,5 @@ -......... +.......... ---------------------------------------------------------------------- -Ran 9 tests +Ran 10 tests OK |