qemu-iotests/139: Avoid blockdev-add with id
We want to remove the 'id' option for blockdev-add. This removes one user of the option and makes it use only node names. Some test cases that used to work with an unattached BlockBackend are removed, either because they don't make sense with an attached device or because the equivalent test case with an attached device already exists. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf
parent
eed875838e
commit
62acae8a9d
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@ -31,6 +31,7 @@ class TestBlockdevDel(iotests.QMPTestCase):
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def setUp(self):
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iotests.qemu_img('create', '-f', iotests.imgfmt, base_img, '1M')
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self.vm = iotests.VM()
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self.vm.add_device("virtio-scsi-pci,id=virtio-scsi")
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self.vm.launch()
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def tearDown(self):
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@ -39,18 +40,6 @@ class TestBlockdevDel(iotests.QMPTestCase):
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if os.path.isfile(new_img):
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os.remove(new_img)
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# Check whether a BlockBackend exists
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def checkBlockBackend(self, backend, node, must_exist = True):
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result = self.vm.qmp('query-block')
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backends = filter(lambda x: x['device'] == backend, result['return'])
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self.assertLessEqual(len(backends), 1)
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self.assertEqual(must_exist, len(backends) == 1)
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if must_exist:
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if node:
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self.assertEqual(backends[0]['inserted']['node-name'], node)
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else:
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self.assertFalse(backends[0].has_key('inserted'))
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# Check whether a BlockDriverState exists
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def checkBlockDriverState(self, node, must_exist = True):
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result = self.vm.qmp('query-named-block-nodes')
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@ -58,24 +47,6 @@ class TestBlockdevDel(iotests.QMPTestCase):
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self.assertLessEqual(len(nodes), 1)
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self.assertEqual(must_exist, len(nodes) == 1)
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# Add a new BlockBackend (with its attached BlockDriverState)
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def addBlockBackend(self, backend, node):
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file_node = '%s_file' % node
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self.checkBlockBackend(backend, node, False)
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self.checkBlockDriverState(node, False)
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self.checkBlockDriverState(file_node, False)
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opts = {'driver': iotests.imgfmt,
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'id': backend,
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'node-name': node,
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'file': {'driver': 'file',
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'node-name': file_node,
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'filename': base_img}}
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result = self.vm.qmp('blockdev-add', conv_keys = False, options = opts)
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self.assert_qmp(result, 'return', {})
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self.checkBlockBackend(backend, node)
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self.checkBlockDriverState(node)
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self.checkBlockDriverState(file_node)
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# Add a BlockDriverState without a BlockBackend
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def addBlockDriverState(self, node):
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file_node = '%s_file' % node
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@ -105,23 +76,6 @@ class TestBlockdevDel(iotests.QMPTestCase):
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self.assert_qmp(result, 'return', {})
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self.checkBlockDriverState(node)
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# Delete a BlockBackend
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def delBlockBackend(self, backend, node, expect_error = False,
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destroys_media = True):
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self.checkBlockBackend(backend, node)
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if node:
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self.checkBlockDriverState(node)
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result = self.vm.qmp('x-blockdev-del', id = backend)
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if expect_error:
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self.assert_qmp(result, 'error/class', 'GenericError')
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if node:
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self.checkBlockDriverState(node)
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else:
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self.assert_qmp(result, 'return', {})
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if node:
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self.checkBlockDriverState(node, not destroys_media)
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self.checkBlockBackend(backend, node, must_exist = expect_error)
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# Delete a BlockDriverState
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def delBlockDriverState(self, node, expect_error = False):
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self.checkBlockDriverState(node)
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@ -133,51 +87,47 @@ class TestBlockdevDel(iotests.QMPTestCase):
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self.checkBlockDriverState(node, expect_error)
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# Add a device model
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def addDeviceModel(self, device, backend):
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def addDeviceModel(self, device, backend, driver = 'virtio-blk-pci'):
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result = self.vm.qmp('device_add', id = device,
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driver = 'virtio-blk-pci', drive = backend)
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driver = driver, drive = backend)
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self.assert_qmp(result, 'return', {})
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# Delete a device model
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def delDeviceModel(self, device):
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def delDeviceModel(self, device, is_virtio_blk = True):
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result = self.vm.qmp('device_del', id = device)
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('system_reset')
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self.assert_qmp(result, 'return', {})
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device_path = '/machine/peripheral/%s/virtio-backend' % device
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event = self.vm.event_wait(name="DEVICE_DELETED",
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match={'data': {'path': device_path}})
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self.assertNotEqual(event, None)
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if is_virtio_blk:
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device_path = '/machine/peripheral/%s/virtio-backend' % device
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event = self.vm.event_wait(name="DEVICE_DELETED",
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match={'data': {'path': device_path}})
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self.assertNotEqual(event, None)
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event = self.vm.event_wait(name="DEVICE_DELETED",
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match={'data': {'device': device}})
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self.assertNotEqual(event, None)
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# Remove a BlockDriverState
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def ejectDrive(self, backend, node, expect_error = False,
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def ejectDrive(self, device, node, expect_error = False,
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destroys_media = True):
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self.checkBlockBackend(backend, node)
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self.checkBlockDriverState(node)
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result = self.vm.qmp('eject', device = backend)
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result = self.vm.qmp('eject', id = device)
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if expect_error:
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self.assert_qmp(result, 'error/class', 'GenericError')
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self.checkBlockDriverState(node)
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self.checkBlockBackend(backend, node)
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else:
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self.assert_qmp(result, 'return', {})
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self.checkBlockDriverState(node, not destroys_media)
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self.checkBlockBackend(backend, None)
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# Insert a BlockDriverState
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def insertDrive(self, backend, node):
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self.checkBlockBackend(backend, None)
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def insertDrive(self, device, node):
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self.checkBlockDriverState(node)
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result = self.vm.qmp('x-blockdev-insert-medium',
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device = backend, node_name = node)
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id = device, node_name = node)
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self.assert_qmp(result, 'return', {})
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self.checkBlockBackend(backend, node)
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self.checkBlockDriverState(node)
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# Create a snapshot using 'blockdev-snapshot-sync'
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@ -204,26 +154,23 @@ class TestBlockdevDel(iotests.QMPTestCase):
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self.checkBlockDriverState(overlay)
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# Create a mirror
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def createMirror(self, backend, node, new_node):
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self.checkBlockBackend(backend, node)
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def createMirror(self, node, new_node):
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self.checkBlockDriverState(new_node, False)
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opts = {'device': backend,
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opts = {'device': node,
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'job-id': node,
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'target': new_img,
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'node-name': new_node,
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'sync': 'top',
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'format': iotests.imgfmt}
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result = self.vm.qmp('drive-mirror', conv_keys=False, **opts)
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self.assert_qmp(result, 'return', {})
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self.checkBlockBackend(backend, node)
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self.checkBlockDriverState(new_node)
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# Complete an existing block job
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def completeBlockJob(self, backend, node_before, node_after):
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self.checkBlockBackend(backend, node_before)
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result = self.vm.qmp('block-job-complete', device=backend)
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def completeBlockJob(self, id, node_before, node_after):
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result = self.vm.qmp('block-job-complete', device=id)
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self.assert_qmp(result, 'return', {})
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self.wait_until_completed(backend)
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self.checkBlockBackend(backend, node_after)
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self.wait_until_completed(id)
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# Add a BlkDebug node
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# Note that the purpose of this is to test the x-blockdev-del
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@ -297,89 +244,78 @@ class TestBlockdevDel(iotests.QMPTestCase):
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# The tests start here #
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########################
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def testWrongParameters(self):
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self.addBlockBackend('drive0', 'node0')
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result = self.vm.qmp('x-blockdev-del')
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('x-blockdev-del', id='drive0', node_name='node0')
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self.assert_qmp(result, 'error/class', 'GenericError')
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self.delBlockBackend('drive0', 'node0')
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def testBlockBackend(self):
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self.addBlockBackend('drive0', 'node0')
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# You cannot delete a BDS that is attached to a backend
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self.delBlockDriverState('node0', expect_error = True)
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self.delBlockBackend('drive0', 'node0')
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def testBlockDriverState(self):
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self.addBlockDriverState('node0')
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# You cannot delete a file BDS directly
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self.delBlockDriverState('node0_file', expect_error = True)
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self.delBlockDriverState('node0')
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def testEject(self):
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self.addBlockBackend('drive0', 'node0')
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self.ejectDrive('drive0', 'node0')
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self.delBlockBackend('drive0', None)
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def testDeviceModel(self):
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self.addBlockBackend('drive0', 'node0')
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self.addDeviceModel('device0', 'drive0')
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self.ejectDrive('drive0', 'node0', expect_error = True)
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self.delBlockBackend('drive0', 'node0', expect_error = True)
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self.addBlockDriverState('node0')
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self.addDeviceModel('device0', 'node0')
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self.ejectDrive('device0', 'node0', expect_error = True)
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self.delBlockDriverState('node0', expect_error = True)
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self.delDeviceModel('device0')
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self.delBlockBackend('drive0', 'node0')
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self.delBlockDriverState('node0')
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def testAttachMedia(self):
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# This creates a BlockBackend and removes its media
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self.addBlockBackend('drive0', 'node0')
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self.ejectDrive('drive0', 'node0')
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# This creates a new BlockDriverState and inserts it into the backend
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self.addBlockDriverState('node0')
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self.addDeviceModel('device0', 'node0', 'scsi-cd')
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self.ejectDrive('device0', 'node0', destroys_media = False)
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self.delBlockDriverState('node0')
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# This creates a new BlockDriverState and inserts it into the device
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self.addBlockDriverState('node1')
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self.insertDrive('drive0', 'node1')
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# The backend can't be removed: the new BDS has an extra reference
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self.delBlockBackend('drive0', 'node1', expect_error = True)
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self.insertDrive('device0', 'node1')
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# The node can't be removed: the new device has an extra reference
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self.delBlockDriverState('node1', expect_error = True)
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# The BDS still exists after being ejected, but now it can be removed
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self.ejectDrive('drive0', 'node1', destroys_media = False)
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self.ejectDrive('device0', 'node1', destroys_media = False)
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self.delBlockDriverState('node1')
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self.delBlockBackend('drive0', None)
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self.delDeviceModel('device0', False)
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def testSnapshotSync(self):
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self.addBlockBackend('drive0', 'node0')
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self.addBlockDriverState('node0')
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self.addDeviceModel('device0', 'node0')
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self.createSnapshotSync('node0', 'overlay0')
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# This fails because node0 is now being used as a backing image
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self.delBlockDriverState('node0', expect_error = True)
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# This succeeds because overlay0 only has the backend reference
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self.delBlockBackend('drive0', 'overlay0')
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self.checkBlockDriverState('node0', False)
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self.delBlockDriverState('overlay0', expect_error = True)
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# This succeeds because device0 only has the backend reference
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self.delDeviceModel('device0')
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# FIXME Would still be there if blockdev-snapshot-sync took a ref
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self.checkBlockDriverState('overlay0', False)
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self.delBlockDriverState('node0')
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def testSnapshot(self):
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self.addBlockBackend('drive0', 'node0')
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self.addBlockDriverState('node0')
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self.addDeviceModel('device0', 'node0', 'scsi-cd')
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self.addBlockDriverStateOverlay('overlay0')
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self.createSnapshot('node0', 'overlay0')
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self.delBlockBackend('drive0', 'overlay0', expect_error = True)
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self.delBlockDriverState('node0', expect_error = True)
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self.delBlockDriverState('overlay0', expect_error = True)
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self.ejectDrive('drive0', 'overlay0', destroys_media = False)
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self.delBlockBackend('drive0', None)
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self.ejectDrive('device0', 'overlay0', destroys_media = False)
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self.delBlockDriverState('node0', expect_error = True)
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self.delBlockDriverState('overlay0')
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self.checkBlockDriverState('node0', False)
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self.delBlockDriverState('node0')
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def testMirror(self):
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self.addBlockBackend('drive0', 'node0')
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self.createMirror('drive0', 'node0', 'mirror0')
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self.addBlockDriverState('node0')
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self.addDeviceModel('device0', 'node0', 'scsi-cd')
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self.createMirror('node0', 'mirror0')
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# The block job prevents removing the device
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self.delBlockBackend('drive0', 'node0', expect_error = True)
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self.delBlockDriverState('node0', expect_error = True)
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self.delBlockDriverState('mirror0', expect_error = True)
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self.wait_ready('drive0')
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self.completeBlockJob('drive0', 'node0', 'mirror0')
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self.wait_ready('node0')
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self.completeBlockJob('node0', 'node0', 'mirror0')
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self.assert_no_active_block_jobs()
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self.checkBlockDriverState('node0', False)
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# This succeeds because the backend now points to mirror0
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self.delBlockBackend('drive0', 'mirror0')
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# This succeeds because the device now points to mirror0
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self.delBlockDriverState('node0')
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self.delBlockDriverState('mirror0', expect_error = True)
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self.delDeviceModel('device0', False)
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# FIXME mirror0 disappears, drive-mirror doesn't take a reference
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#self.delBlockDriverState('mirror0')
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def testBlkDebug(self):
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self.addBlkDebug('debug0', 'node0')
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@ -1,5 +1,5 @@
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............
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.........
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----------------------------------------------------------------------
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Ran 12 tests
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Ran 9 tests
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OK
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