Commit 48361afb authored by Alberto Garcia's avatar Alberto Garcia Committed by Kevin Wolf
Browse files

qemu-iotests: Test streaming to a Quorum child 



Quorum children are special in the sense that they're not directly
attached to a block backend but they're not used as backing images
either. However the intermediate block streaming code supports
streaming to them. This is a test case for that scenario.

Signed-off-by: default avatarAlberto Garcia <berto@igalia.com>
Reviewed-by: default avatarKevin Wolf <kwolf@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent b0f90495

tests/qemu-iotests/030

+56 −0
Original line number Diff line number Diff line
@@ -347,6 +347,62 @@ class TestParallelOps(iotests.QMPTestCase): 


        self.assert_no_active_block_jobs()



class TestQuorum(iotests.QMPTestCase):

    num_children = 3

    children = []

    backing = []



    def setUp(self):

        opts = ['driver=quorum', 'vote-threshold=2']



        # Initialize file names and command-line options

        for i in range(self.num_children):

            child_img = os.path.join(iotests.test_dir, 'img-%d.img' % i)

            backing_img = os.path.join(iotests.test_dir, 'backing-%d.img' % i)

            self.children.append(child_img)

            self.backing.append(backing_img)

            qemu_img('create', '-f', iotests.imgfmt, backing_img, '1M')

            qemu_io('-f', iotests.imgfmt,

                    '-c', 'write -P 0x55 0 1024', backing_img)

            qemu_img('create', '-f', iotests.imgfmt,

                     '-o', 'backing_file=%s' % backing_img, child_img)

            opts.append("children.%d.file.filename=%s" % (i, child_img))

            opts.append("children.%d.node-name=node%d" % (i, i))



        # Attach the drive to the VM

        self.vm = iotests.VM()

        self.vm.add_drive(path = None, opts = ','.join(opts))

        self.vm.launch()



    def tearDown(self):

        self.vm.shutdown()

        for img in self.children:

            os.remove(img)

        for img in self.backing:

            os.remove(img)



    def test_stream_quorum(self):

        if not iotests.supports_quorum():

            return



        self.assertNotEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.children[0]),

                            qemu_io('-f', iotests.imgfmt, '-c', 'map', self.backing[0]),

                            'image file map matches backing file before streaming')



        self.assert_no_active_block_jobs()



        result = self.vm.qmp('block-stream', device='node0', job_id='stream-node0')

        self.assert_qmp(result, 'return', {})



        self.wait_until_completed(drive='stream-node0')



        self.assert_no_active_block_jobs()

        self.vm.shutdown()



        self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.children[0]),

                         qemu_io('-f', iotests.imgfmt, '-c', 'map', self.backing[0]),

                         'image file map does not match backing file after streaming')



class TestSmallerBackingFile(iotests.QMPTestCase):

    backing_len = 1 * 1024 * 1024 # MB

    image_len = 2 * backing_len

tests/qemu-iotests/030.out

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Ran 20 tests

Ran 21 tests



OK