iotests: add test-case to 165 to test reopening qcow2 bitmaps to RW

Reopening bitmaps to RW was broken prior to previous commit. Check that
it works now.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-4-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-09-27 15:23:49 +03:00 committed by John Snow
parent fcd6a4f42d
commit 5752f89a78
2 changed files with 57 additions and 4 deletions

View file

@ -43,10 +43,10 @@ class TestPersistentDirtyBitmap(iotests.QMPTestCase):
os.remove(disk)
def mkVm(self):
return iotests.VM().add_drive(disk)
return iotests.VM().add_drive(disk, opts='node-name=node0')
def mkVmRo(self):
return iotests.VM().add_drive(disk, opts='readonly=on')
return iotests.VM().add_drive(disk, opts='readonly=on,node-name=node0')
def getSha256(self):
result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256',
@ -102,6 +102,59 @@ class TestPersistentDirtyBitmap(iotests.QMPTestCase):
self.vm.shutdown()
def test_reopen_rw(self):
self.vm = self.mkVm()
self.vm.launch()
self.qmpAddBitmap()
# Calculate hashes
self.writeRegions(regions1)
sha256_1 = self.getSha256()
self.writeRegions(regions2)
sha256_2 = self.getSha256()
assert sha256_1 != sha256_2 # Otherwise, it's not very interesting.
result = self.vm.qmp('block-dirty-bitmap-clear', node='drive0',
name='bitmap0')
self.assert_qmp(result, 'return', {})
# Start with regions1
self.writeRegions(regions1)
assert sha256_1 == self.getSha256()
self.vm.shutdown()
self.vm = self.mkVmRo()
self.vm.launch()
assert sha256_1 == self.getSha256()
# Check that we are in RO mode and can't modify bitmap.
self.writeRegions(regions2)
assert sha256_1 == self.getSha256()
# Reopen to RW
result = self.vm.qmp('x-blockdev-reopen', **{
'node-name': 'node0',
'driver': iotests.imgfmt,
'file': {
'driver': 'file',
'filename': disk
},
'read-only': False
})
self.assert_qmp(result, 'return', {})
# Check that bitmap is reopened to RW and we can write to it.
self.writeRegions(regions2)
assert sha256_2 == self.getSha256()
self.vm.shutdown()
if __name__ == '__main__':
iotests.main(supported_fmts=['qcow2'],
supported_protocols=['file'])

View file

@ -1,5 +1,5 @@
.
..
----------------------------------------------------------------------
Ran 1 tests
Ran 2 tests
OK