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iotests: Test incremental backup after truncation
Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190805152840.32190-1-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
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@ -212,25 +212,28 @@ class TestIncrementalBackupBase(iotests.QMPTestCase):
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return bitmap
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return bitmap
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def prepare_backup(self, bitmap=None, parent=None):
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def prepare_backup(self, bitmap=None, parent=None, **kwargs):
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if bitmap is None:
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if bitmap is None:
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bitmap = self.bitmaps[-1]
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bitmap = self.bitmaps[-1]
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if parent is None:
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if parent is None:
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parent, _ = bitmap.last_target()
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parent, _ = bitmap.last_target()
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target, _ = bitmap.new_target()
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target, _ = bitmap.new_target()
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self.img_create(target, bitmap.drive['fmt'], parent=parent)
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self.img_create(target, bitmap.drive['fmt'], parent=parent,
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**kwargs)
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return target
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return target
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def create_incremental(self, bitmap=None, parent=None,
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def create_incremental(self, bitmap=None, parent=None,
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parentFormat=None, validate=True):
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parentFormat=None, validate=True,
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target=None):
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if bitmap is None:
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if bitmap is None:
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bitmap = self.bitmaps[-1]
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bitmap = self.bitmaps[-1]
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if parent is None:
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if parent is None:
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parent, _ = bitmap.last_target()
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parent, _ = bitmap.last_target()
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target = self.prepare_backup(bitmap, parent)
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if target is None:
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target = self.prepare_backup(bitmap, parent)
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res = self.do_qmp_backup(job_id=bitmap.drive['id'],
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res = self.do_qmp_backup(job_id=bitmap.drive['id'],
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device=bitmap.drive['id'],
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device=bitmap.drive['id'],
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sync='incremental', bitmap=bitmap.name,
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sync='incremental', bitmap=bitmap.name,
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@ -572,6 +575,33 @@ class TestIncrementalBackup(TestIncrementalBackupBase):
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'bitmap0', self.drives[0],
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'bitmap0', self.drives[0],
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granularity=64000)
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granularity=64000)
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def test_growing_before_backup(self):
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'''
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Test: Add a bitmap, truncate the image, write past the old
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end, do a backup.
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Incremental backup should not ignore dirty bits past the old
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image end.
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'''
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self.assert_no_active_block_jobs()
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self.create_anchor_backup()
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self.add_bitmap('bitmap0', self.drives[0])
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res = self.vm.qmp('block_resize', device=self.drives[0]['id'],
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size=(65 * 1048576))
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self.assert_qmp(res, 'return', {})
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# Dirty the image past the old end
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self.vm.hmp_qemu_io(self.drives[0]['id'], 'write 64M 64k')
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target = self.prepare_backup(size='65M')
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self.create_incremental(target=target)
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self.vm.shutdown()
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self.check_backups()
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class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
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class TestIncrementalBackupBlkdebug(TestIncrementalBackupBase):
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'''Incremental backup tests that utilize a BlkDebug filter on drive0.'''
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'''Incremental backup tests that utilize a BlkDebug filter on drive0.'''
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@ -1,5 +1,5 @@
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............
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.............
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----------------------------------------------------------------------
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----------------------------------------------------------------------
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Ran 12 tests
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Ran 13 tests
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OK
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OK
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