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-rwxr-xr-xqemu/tests/qemu-iotests/040255
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diff --git a/qemu/tests/qemu-iotests/040 b/qemu/tests/qemu-iotests/040
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+++ b/qemu/tests/qemu-iotests/040
@@ -0,0 +1,255 @@
+#!/usr/bin/env python
+#
+# Tests for image block commit.
+#
+# Copyright (C) 2012 IBM, Corp.
+# Copyright (C) 2012 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# Test for live block commit
+# Derived from Image Streaming Test 030
+
+import time
+import os
+import iotests
+from iotests import qemu_img, qemu_io
+import struct
+import errno
+
+backing_img = os.path.join(iotests.test_dir, 'backing.img')
+mid_img = os.path.join(iotests.test_dir, 'mid.img')
+test_img = os.path.join(iotests.test_dir, 'test.img')
+
+class ImageCommitTestCase(iotests.QMPTestCase):
+ '''Abstract base class for image commit test cases'''
+
+ def wait_for_complete(self, need_ready=False):
+ completed = False
+ ready = False
+ while not completed:
+ for event in self.vm.get_qmp_events(wait=True):
+ if event['event'] == 'BLOCK_JOB_COMPLETED':
+ self.assert_qmp(event, 'data/type', 'commit')
+ self.assert_qmp(event, 'data/device', 'drive0')
+ self.assert_qmp(event, 'data/offset', event['data']['len'])
+ if need_ready:
+ self.assertTrue(ready, "Expecting BLOCK_JOB_COMPLETED event")
+ completed = True
+ elif event['event'] == 'BLOCK_JOB_READY':
+ ready = True
+ self.assert_qmp(event, 'data/type', 'commit')
+ self.assert_qmp(event, 'data/device', 'drive0')
+ self.vm.qmp('block-job-complete', device='drive0')
+
+ self.assert_no_active_block_jobs()
+ self.vm.shutdown()
+
+ def run_commit_test(self, top, base, need_ready=False):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top=top, base=base)
+ self.assert_qmp(result, 'return', {})
+ self.wait_for_complete(need_ready)
+
+ def run_default_commit_test(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0')
+ self.assert_qmp(result, 'return', {})
+ self.wait_for_complete()
+
+class TestSingleDrive(ImageCommitTestCase):
+ image_len = 1 * 1024 * 1024
+ test_len = 1 * 1024 * 256
+
+ def setUp(self):
+ iotests.create_image(backing_img, self.image_len)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
+ qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', backing_img)
+ qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img)
+ self.vm = iotests.VM().add_drive(test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ self.vm.shutdown()
+ os.remove(test_img)
+ os.remove(mid_img)
+ os.remove(backing_img)
+
+ def test_commit(self):
+ self.run_commit_test(mid_img, backing_img)
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
+
+ def test_device_not_found(self):
+ result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % mid_img)
+ self.assert_qmp(result, 'error/class', 'DeviceNotFound')
+
+ def test_top_same_base(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % backing_img)
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % backing_img)
+
+ def test_top_invalid(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % backing_img)
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Top image file badfile not found')
+
+ def test_base_invalid(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='%s' % mid_img, base='badfile')
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Base \'badfile\' not found')
+
+ def test_top_is_active(self):
+ self.run_commit_test(test_img, backing_img, need_ready=True)
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
+
+ def test_top_is_default_active(self):
+ self.run_default_commit_test()
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', backing_img).find("verification failed"))
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', backing_img).find("verification failed"))
+
+ def test_top_and_base_reversed(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='%s' % backing_img, base='%s' % mid_img)
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % mid_img)
+
+
+class TestRelativePaths(ImageCommitTestCase):
+ image_len = 1 * 1024 * 1024
+ test_len = 1 * 1024 * 256
+
+ dir1 = "dir1"
+ dir2 = "dir2/"
+ dir3 = "dir2/dir3/"
+
+ test_img = os.path.join(iotests.test_dir, dir3, 'test.img')
+ mid_img = "../mid.img"
+ backing_img = "../dir1/backing.img"
+
+ backing_img_abs = os.path.join(iotests.test_dir, dir1, 'backing.img')
+ mid_img_abs = os.path.join(iotests.test_dir, dir2, 'mid.img')
+
+ def setUp(self):
+ try:
+ os.mkdir(os.path.join(iotests.test_dir, self.dir1))
+ os.mkdir(os.path.join(iotests.test_dir, self.dir2))
+ os.mkdir(os.path.join(iotests.test_dir, self.dir3))
+ except OSError as exception:
+ if exception.errno != errno.EEXIST:
+ raise
+ iotests.create_image(self.backing_img_abs, TestRelativePaths.image_len)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % self.backing_img_abs, self.mid_img_abs)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % self.mid_img_abs, self.test_img)
+ qemu_img('rebase', '-u', '-b', self.backing_img, self.mid_img_abs)
+ qemu_img('rebase', '-u', '-b', self.mid_img, self.test_img)
+ qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', self.backing_img_abs)
+ qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', self.mid_img_abs)
+ self.vm = iotests.VM().add_drive(self.test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ self.vm.shutdown()
+ os.remove(self.test_img)
+ os.remove(self.mid_img_abs)
+ os.remove(self.backing_img_abs)
+ try:
+ os.rmdir(os.path.join(iotests.test_dir, self.dir1))
+ os.rmdir(os.path.join(iotests.test_dir, self.dir3))
+ os.rmdir(os.path.join(iotests.test_dir, self.dir2))
+ except OSError as exception:
+ if exception.errno != errno.EEXIST and exception.errno != errno.ENOTEMPTY:
+ raise
+
+ def test_commit(self):
+ self.run_commit_test(self.mid_img, self.backing_img)
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', self.backing_img_abs).find("verification failed"))
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', self.backing_img_abs).find("verification failed"))
+
+ def test_device_not_found(self):
+ result = self.vm.qmp('block-commit', device='nonexistent', top='%s' % self.mid_img)
+ self.assert_qmp(result, 'error/class', 'DeviceNotFound')
+
+ def test_top_same_base(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='%s' % self.mid_img)
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % self.mid_img)
+
+ def test_top_invalid(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='badfile', base='%s' % self.backing_img)
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Top image file badfile not found')
+
+ def test_base_invalid(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.mid_img, base='badfile')
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Base \'badfile\' not found')
+
+ def test_top_is_active(self):
+ self.run_commit_test(self.test_img, self.backing_img)
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xab 0 524288', self.backing_img_abs).find("verification failed"))
+ self.assertEqual(-1, qemu_io('-f', 'raw', '-c', 'read -P 0xef 524288 524288', self.backing_img_abs).find("verification failed"))
+
+ def test_top_and_base_reversed(self):
+ self.assert_no_active_block_jobs()
+ result = self.vm.qmp('block-commit', device='drive0', top='%s' % self.backing_img, base='%s' % self.mid_img)
+ self.assert_qmp(result, 'error/class', 'GenericError')
+ self.assert_qmp(result, 'error/desc', 'Base \'%s\' not found' % self.mid_img)
+
+
+class TestSetSpeed(ImageCommitTestCase):
+ image_len = 80 * 1024 * 1024 # MB
+
+ def setUp(self):
+ qemu_img('create', backing_img, str(TestSetSpeed.image_len))
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
+ qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 0 512', test_img)
+ qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img)
+ self.vm = iotests.VM().add_drive(test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ self.vm.shutdown()
+ os.remove(test_img)
+ os.remove(mid_img)
+ os.remove(backing_img)
+
+ def test_set_speed(self):
+ self.assert_no_active_block_jobs()
+
+ self.vm.pause_drive('drive0')
+ result = self.vm.qmp('block-commit', device='drive0', top=mid_img, speed=1024 * 1024)
+ self.assert_qmp(result, 'return', {})
+
+ # Ensure the speed we set was accepted
+ result = self.vm.qmp('query-block-jobs')
+ self.assert_qmp(result, 'return[0]/device', 'drive0')
+ self.assert_qmp(result, 'return[0]/speed', 1024 * 1024)
+
+ self.cancel_and_wait(resume=True)
+
+class TestActiveZeroLengthImage(TestSingleDrive):
+ image_len = 0
+
+if __name__ == '__main__':
+ iotests.main(supported_fmts=['qcow2', 'qed'])
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#!/usr/bin/env python
#
# Tests for image streaming.
#
# Copyright (C) 2012 IBM Corp.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

import time
import os
import iotests
from iotests import qemu_img, qemu_io

backing_img = os.path.join(iotests.test_dir, 'backing.img')
mid_img = os.path.join(iotests.test_dir, 'mid.img')
test_img = os.path.join(iotests.test_dir, 'test.img')

class TestSingleDrive(iotests.QMPTestCase):
    image_len = 1 * 1024 * 1024 # MB

    def setUp(self):
        iotests.create_image(backing_img, TestSingleDrive.image_len)
        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
        qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 512', backing_img)
        self.vm = iotests.VM().add_drive("blkdebug::" + test_img)
        self.vm.launch()

    def tearDown(self):
        self.vm.shutdown()
        os.remove(test_img)
        os.remove(mid_img)
        os.remove(backing_img)

    def test_stream(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        self.wait_until_completed()

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

        self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
                         qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
                         'image file map does not match backing file after streaming')

    def test_stream_pause(self):
        self.assert_no_active_block_jobs()

        self.vm.pause_drive('drive0')
        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        result = self.vm.qmp('block-job-pause', device='drive0')
        self.assert_qmp(result, 'return', {})

        time.sleep(1)
        result = self.vm.qmp('query-block-jobs')
        offset = self.dictpath(result, 'return[0]/offset')

        time.sleep(1)
        result = self.vm.qmp('query-block-jobs')
        self.assert_qmp(result, 'return[0]/offset', offset)

        result = self.vm.qmp('block-job-resume', device='drive0')
        self.assert_qmp(result, 'return', {})

        self.vm.resume_drive('drive0')
        self.wait_until_completed()

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

        self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
                         qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
                         'image file map does not match backing file after streaming')

    def test_stream_partial(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0', base=mid_img)
        self.assert_qmp(result, 'return', {})

        self.wait_until_completed()

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

        self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img),
                         qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
                         'image file map does not match backing file after streaming')

    def test_device_not_found(self):
        result = self.vm.qmp('block-stream', device='nonexistent')
        self.assert_qmp(result, 'error/class', 'DeviceNotFound')


class TestSmallerBackingFile(iotests.QMPTestCase):
    backing_len = 1 * 1024 * 1024 # MB
    image_len = 2 * backing_len

    def setUp(self):
        iotests.create_image(backing_img, self.backing_len)
        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img, str(self.image_len))
        self.vm = iotests.VM().add_drive(test_img)
        self.vm.launch()

    # If this hangs, then you are missing a fix to complete streaming when the
    # end of the backing file is reached.
    def test_stream(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        self.wait_until_completed()

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

class TestErrors(iotests.QMPTestCase):
    image_len = 2 * 1024 * 1024 # MB

    # this should match STREAM_BUFFER_SIZE/512 in block/stream.c
    STREAM_BUFFER_SIZE = 512 * 1024

    def create_blkdebug_file(self, name, event, errno):
        file = open(name, 'w')
        file.write('''
[inject-error]
state = "1"
event = "%s"
errno = "%d"
immediately = "off"
once = "on"
sector = "%d"

[set-state]
state = "1"
event = "%s"
new_state = "2"

[set-state]
state = "2"
event = "%s"
new_state = "1"
''' % (event, errno, self.STREAM_BUFFER_SIZE / 512, event, event))
        file.close()

class TestEIO(TestErrors):
    def setUp(self):
        self.blkdebug_file = backing_img + ".blkdebug"
        iotests.create_image(backing_img, TestErrors.image_len)
        self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5)
        qemu_img('create', '-f', iotests.imgfmt,
                 '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
                       % (self.blkdebug_file, backing_img),
                 test_img)
        self.vm = iotests.VM().add_drive(test_img)
        self.vm.launch()

    def tearDown(self):
        self.vm.shutdown()
        os.remove(test_img)
        os.remove(backing_img)
        os.remove(self.blkdebug_file)

    def test_report(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        completed = False
        error = False
        while not completed:
            for event in self.vm.get_qmp_events(wait=True):
                if event['event'] == 'BLOCK_JOB_ERROR':
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/operation', 'read')
                    error = True
                elif event['event'] == 'BLOCK_JOB_COMPLETED':
                    self.assertTrue(error, 'job completed unexpectedly')
                    self.assert_qmp(event, 'data/type', 'stream')
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/error', 'Input/output error')
                    self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE)
                    self.assert_qmp(event, 'data/len', self.image_len)
                    completed = True

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

    def test_ignore(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0', on_error='ignore')
        self.assert_qmp(result, 'return', {})

        error = False
        completed = False
        while not completed:
            for event in self.vm.get_qmp_events(wait=True):
                if event['event'] == 'BLOCK_JOB_ERROR':
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/operation', 'read')
                    result = self.vm.qmp('query-block-jobs')
                    self.assert_qmp(result, 'return[0]/paused', False)
                    error = True
                elif event['event'] == 'BLOCK_JOB_COMPLETED':
                    self.assertTrue(error, 'job completed unexpectedly')
                    self.assert_qmp(event, 'data/type', 'stream')
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/error', 'Input/output error')
                    self.assert_qmp(event, 'data/offset', self.image_len)
                    self.assert_qmp(event, 'data/len', self.image_len)
                    completed = True

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

    def test_stop(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0', on_error='stop')
        self.assert_qmp(result, 'return', {})

        error = False
        completed = False
        while not completed:
            for event in self.vm.get_qmp_events(wait=True):
                if event['event'] == 'BLOCK_JOB_ERROR':
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/operation', 'read')

                    result = self.vm.qmp('query-block-jobs')
                    self.assert_qmp(result, 'return[0]/paused', True)
                    self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE)
                    self.assert_qmp(result, 'return[0]/io-status', 'failed')

                    result = self.vm.qmp('block-job-resume', device='drive0')
                    self.assert_qmp(result, 'return', {})

                    result = self.vm.qmp('query-block-jobs')
                    self.assert_qmp(result, 'return[0]/paused', False)
                    self.assert_qmp(result, 'return[0]/io-status', 'ok')
                    error = True
                elif event['event'] == 'BLOCK_JOB_COMPLETED':
                    self.assertTrue(error, 'job completed unexpectedly')
                    self.assert_qmp(event, 'data/type', 'stream')
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp_absent(event, 'data/error')
                    self.assert_qmp(event, 'data/offset', self.image_len)
                    self.assert_qmp(event, 'data/len', self.image_len)
                    completed = True

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

    def test_enospc(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
        self.assert_qmp(result, 'return', {})

        completed = False
        error = False
        while not completed:
            for event in self.vm.get_qmp_events(wait=True):
                if event['event'] == 'BLOCK_JOB_ERROR':
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/operation', 'read')
                    error = True
                elif event['event'] == 'BLOCK_JOB_COMPLETED':
                    self.assertTrue(error, 'job completed unexpectedly')
                    self.assert_qmp(event, 'data/type', 'stream')
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/error', 'Input/output error')
                    self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE)
                    self.assert_qmp(event, 'data/len', self.image_len)
                    completed = True

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

class TestENOSPC(TestErrors):
    def setUp(self):
        self.blkdebug_file = backing_img + ".blkdebug"
        iotests.create_image(backing_img, TestErrors.image_len)
        self.create_blkdebug_file(self.blkdebug_file, "read_aio", 28)
        qemu_img('create', '-f', iotests.imgfmt,
                 '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
                       % (self.blkdebug_file, backing_img),
                 test_img)
        self.vm = iotests.VM().add_drive(test_img)
        self.vm.launch()

    def tearDown(self):
        self.vm.shutdown()
        os.remove(test_img)
        os.remove(backing_img)
        os.remove(self.blkdebug_file)

    def test_enospc(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
        self.assert_qmp(result, 'return', {})

        error = False
        completed = False
        while not completed:
            for event in self.vm.get_qmp_events(wait=True):
                if event['event'] == 'BLOCK_JOB_ERROR':
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp(event, 'data/operation', 'read')

                    result = self.vm.qmp('query-block-jobs')
                    self.assert_qmp(result, 'return[0]/paused', True)
                    self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE)
                    self.assert_qmp(result, 'return[0]/io-status', 'nospace')

                    result = self.vm.qmp('block-job-resume', device='drive0')
                    self.assert_qmp(result, 'return', {})

                    result = self.vm.qmp('query-block-jobs')
                    self.assert_qmp(result, 'return[0]/paused', False)
                    self.assert_qmp(result, 'return[0]/io-status', 'ok')
                    error = True
                elif event['event'] == 'BLOCK_JOB_COMPLETED':
                    self.assertTrue(error, 'job completed unexpectedly')
                    self.assert_qmp(event, 'data/type', 'stream')
                    self.assert_qmp(event, 'data/device', 'drive0')
                    self.assert_qmp_absent(event, 'data/error')
                    self.assert_qmp(event, 'data/offset', self.image_len)
                    self.assert_qmp(event, 'data/len', self.image_len)
                    completed = True

        self.assert_no_active_block_jobs()
        self.vm.shutdown()

class TestStreamStop(iotests.QMPTestCase):
    image_len = 8 * 1024 * 1024 * 1024 # GB

    def setUp(self):
        qemu_img('create', backing_img, str(TestStreamStop.image_len))
        qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img)
        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
        qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img)
        self.vm = iotests.VM().add_drive("blkdebug::" + test_img)
        self.vm.launch()

    def tearDown(self):
        self.vm.shutdown()
        os.remove(test_img)
        os.remove(backing_img)

    def test_stream_stop(self):
        self.assert_no_active_block_jobs()

        self.vm.pause_drive('drive0')
        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        time.sleep(0.1)
        events = self.vm.get_qmp_events(wait=False)
        self.assertEqual(events, [], 'unexpected QMP event: %s' % events)

        self.cancel_and_wait(resume=True)

class TestSetSpeed(iotests.QMPTestCase):
    image_len = 80 * 1024 * 1024 # MB

    def setUp(self):
        qemu_img('create', backing_img, str(TestSetSpeed.image_len))
        qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img)
        qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
        qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img)
        self.vm = iotests.VM().add_drive('blkdebug::' + test_img)
        self.vm.launch()

    def tearDown(self):
        self.vm.shutdown()
        os.remove(test_img)
        os.remove(backing_img)

    # This is a short performance test which is not run by default.
    # Invoke "IMGFMT=qed ./030 TestSetSpeed.perf_test_throughput"
    def perf_test_throughput(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
        self.assert_qmp(result, 'return', {})

        self.wait_until_completed()

        self.assert_no_active_block_jobs()

    def test_set_speed(self):
        self.assert_no_active_block_jobs()

        self.vm.pause_drive('drive0')
        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        # Default speed is 0
        result = self.vm.qmp('query-block-jobs')
        self.assert_qmp(result, 'return[0]/device', 'drive0')
        self.assert_qmp(result, 'return[0]/speed', 0)

        result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
        self.assert_qmp(result, 'return', {})

        # Ensure the speed we set was accepted
        result = self.vm.qmp('query-block-jobs')
        self.assert_qmp(result, 'return[0]/device', 'drive0')
        self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024)

        self.cancel_and_wait(resume=True)
        self.vm.pause_drive('drive0')

        # Check setting speed in block-stream works
        result = self.vm.qmp('block-stream', device='drive0', speed=4 * 1024 * 1024)
        self.assert_qmp(result, 'return', {})

        result = self.vm.qmp('query-block-jobs')
        self.assert_qmp(result, 'return[0]/device', 'drive0')
        self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024)

        self.cancel_and_wait(resume=True)

    def test_set_speed_invalid(self):
        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0', speed=-1)
        self.assert_qmp(result, 'error/class', 'GenericError')

        self.assert_no_active_block_jobs()

        result = self.vm.qmp('block-stream', device='drive0')
        self.assert_qmp(result, 'return', {})

        result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1)
        self.assert_qmp(result, 'error/class', 'GenericError')

        self.cancel_and_wait()

if __name__ == '__main__':
    iotests.main(supported_fmts=['qcow2', 'qed'])