| Message ID | 20200726152532.256261-3-nsoffer@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Fix convert to qcow2 compressed to NBD | expand |
On 26.07.20 17:25, Nir Soffer wrote: > Add test for "qemu-img convert -O qcow2 -c" to NBD target. The use case > is writing compressed disk content to OVA archive. > > Signed-off-by: Nir Soffer <nsoffer@redhat.com> > --- > tests/qemu-iotests/302 | 83 ++++++++++++++++++++++++++++++++++++++ > tests/qemu-iotests/302.out | 27 +++++++++++++ > tests/qemu-iotests/group | 1 + > 3 files changed, 111 insertions(+) > create mode 100755 tests/qemu-iotests/302 > create mode 100644 tests/qemu-iotests/302.out > > diff --git a/tests/qemu-iotests/302 b/tests/qemu-iotests/302 > new file mode 100755 > index 0000000000..cefde1f7cf > --- /dev/null > +++ b/tests/qemu-iotests/302 > @@ -0,0 +1,83 @@ > +#!/usr/bin/env python3 > +# > +# Tests conveting qcow2 compressed to NBD *converting > +# > +# Copyright (c) 2020 Nir Soffer <nirsof@gmail.com> > +# > +# 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/>. > +# > +# owner=nirsof@gmail.com > + > +import json > +import iotests > + > +from iotests import ( > + file_path, > + qemu_img, > + qemu_img_create, > + qemu_img_log, > + qemu_img_pipe, > + qemu_io, > + qemu_nbd, > +) > + > +iotests.script_initialize(supported_fmts=["qcow2"]) > + > +# Create source disk, format does not matter. > +src_disk = file_path("disk.img") > +qemu_img_create("-f", "raw", src_disk, "10m") If the format doesn’t matter, why not just use qcow2 and so put iotests.imgfmt here? (And everywhere else where you now have -f raw.) > +qemu_io("-f", "raw", "-c", "write 1m 64K", src_disk) (Except I think qemu_io already has -f qcow2 in its arguments by default, so specifying the format wouldn’t even be necessary here.) > +# The use case is writing qcow2 image directly into a tar file. Code to create > +# real tar file not included. > +# > +# offset content > +# ------------------------------- > +# 0 first memebr header *member > +# 512 first member data > +# 1024 second memeber header *member > +# 1536 second member data > + > +tar_file = file_path("test.tar") > +out = qemu_img_pipe("measure", "-O", "qcow2", "--output", "json", src_disk) > +measure = json.loads(out) > +qemu_img_create("-f", "raw", tar_file, str(measure["required"])) Should this be measure["required"] + 1536? > + > +nbd_sock = file_path("nbd-sock", base_dir=iotests.sock_dir) > +nbd_uri = "nbd+unix:///exp?socket=" + nbd_sock > + > +# Use raw format to allow creating qcow2 directy into tar file. > +qemu_nbd( > + "--socket", nbd_sock, > + "--persistent", > + "--export-name", "exp", > + "--format", "raw", > + "--offset", "1536", > + tar_file) > + > +iotests.log("=== Target image info ===") > +qemu_img_log("info", nbd_uri) > + > +# Write image into the tar file. In a real applicatio we would write a tar *application > +# entry after writing the image. > +qemu_img("convert", "-f", "raw", "-O", "qcow2", "-c", src_disk, nbd_uri) > + > +iotests.log("=== Converted image info ===") > +qemu_img_log("info", nbd_uri) > + > +iotests.log("=== Converted image check ===") > +qemu_img_log("check", nbd_uri) > + > +iotests.log("=== Comparing to source disk ===") > +qemu_img_log("compare", src_disk, nbd_uri) > diff --git a/tests/qemu-iotests/302.out b/tests/qemu-iotests/302.out > new file mode 100644 > index 0000000000..babef3d574 > --- /dev/null > +++ b/tests/qemu-iotests/302.out > @@ -0,0 +1,27 @@ > +=== Target image info === > +image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock > +file format: raw > +virtual size: 446 KiB (457216 bytes) > +disk size: unavailable > + > +=== Converted image info === > +image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock > +file format: qcow2 > +virtual size: 10 MiB (10485760 bytes) > +disk size: unavailable > +cluster_size: 65536 > +Format specific information: > + compat: 1.1 > + compression type: zlib > + lazy refcounts: false > + refcount bits: 16 > + corrupt: false > + > +=== Converted image check === > +No errors were found on the image. > +1/160 = 0.62% allocated, 100.00% fragmented, 100.00% compressed clusters > +Image end offset: 393216 I hope none of this is fs-dependant. (I don’t think it is, but who knows. I suppose we’ll find out.) Max > +=== Comparing to source disk === > +Images are identical. > + > diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group > index 1d0252e1f0..1e1cb27bc8 100644 > --- a/tests/qemu-iotests/group > +++ b/tests/qemu-iotests/group > @@ -308,3 +308,4 @@ > 297 meta > 299 auto quick > 301 backing quick > +302 quick >
On 7/27/20 5:04 AM, Max Reitz wrote: > On 26.07.20 17:25, Nir Soffer wrote: >> Add test for "qemu-img convert -O qcow2 -c" to NBD target. The use case >> is writing compressed disk content to OVA archive. >> >> Signed-off-by: Nir Soffer <nsoffer@redhat.com> >> --- > >> +# The use case is writing qcow2 image directly into a tar file. Code to create >> +# real tar file not included. >> +# >> +# offset content >> +# ------------------------------- >> +# 0 first memebr header > > *member > >> +# 512 first member data >> +# 1024 second memeber header > > *member > >> +# 1536 second member data >> + >> +tar_file = file_path("test.tar") I guess it's okay that you don't create a real tar file here, but listing the commands to create it (even as a comment) is better than just saying "trust me". And it doesn't seem like that much more work - it looks like the key to your test is that you created a tar file containing two files, where the first file was less than 512 bytes and the second file is your target destination that you will be rewriting. >> +out = qemu_img_pipe("measure", "-O", "qcow2", "--output", "json", src_disk) >> +measure = json.loads(out) >> +qemu_img_create("-f", "raw", tar_file, str(measure["required"])) > > Should this be measure["required"] + 1536? The test works without it (because of compression), but yes, if you are going to test writing into an offset, you should oversize your file by that same offset. > >> + >> +nbd_sock = file_path("nbd-sock", base_dir=iotests.sock_dir) >> +nbd_uri = "nbd+unix:///exp?socket=" + nbd_sock >> + >> +# Use raw format to allow creating qcow2 directy into tar file. >> +qemu_nbd( >> + "--socket", nbd_sock, >> + "--persistent", >> + "--export-name", "exp", >> + "--format", "raw", >> + "--offset", "1536", >> + tar_file) >> + >> +iotests.log("=== Target image info ===") >> +qemu_img_log("info", nbd_uri) >> + >> +# Write image into the tar file. In a real applicatio we would write a tar > > *application > >> +=== Converted image check === >> +No errors were found on the image. >> +1/160 = 0.62% allocated, 100.00% fragmented, 100.00% compressed clusters >> +Image end offset: 393216 > > I hope none of this is fs-dependant. (I don’t think it is, but who > knows. I suppose we’ll find out.) Indeed - time to see what CI thinks of this. At any rate, given the urgency of getting pull requests for -rc2 in before slamming Peter tomorrow, I'll probably try to touch up the issues Max pointed out and queue it today.
On Mon, Jul 27, 2020 at 5:14 PM Eric Blake <eblake@redhat.com> wrote: > > On 7/27/20 5:04 AM, Max Reitz wrote: > > On 26.07.20 17:25, Nir Soffer wrote: > >> Add test for "qemu-img convert -O qcow2 -c" to NBD target. The use case > >> is writing compressed disk content to OVA archive. > >> > >> Signed-off-by: Nir Soffer <nsoffer@redhat.com> > >> --- > > > > >> +# The use case is writing qcow2 image directly into a tar file. Code to create > >> +# real tar file not included. > >> +# > >> +# offset content > >> +# ------------------------------- > >> +# 0 first memebr header > > > > *member Sorry for the typos, I need to setup automated spelling check :-) > > > >> +# 512 first member data > >> +# 1024 second memeber header > > > > *member > > > >> +# 1536 second member data > >> + > >> +tar_file = file_path("test.tar") > > I guess it's okay that you don't create a real tar file here, but > listing the commands to create it (even as a comment) is better than > just saying "trust me". And it doesn't seem like that much more work - > it looks like the key to your test is that you created a tar file > containing two files, where the first file was less than 512 bytes and > the second file is your target destination that you will be rewriting. The real code is more complicated, something like: offset = tar.fileobj.tell() + BLOCK_SIZE with open(tar.name, "r+") as f: f.truncate(offset + measure["required"]) convert_image(image, tar.name, offset) check = check_image(tar.name, offset) size = check["image-end-offset"] member = tarfile.TarInfo(name) member.size = size tar.addfile(member) tar_size = offset + round_up(size) tar.fileobj.seek(tar_size) with open(tar.name, "r+") as f: f.truncate(tar_size) I'm not sure it helps qemu developers working on these tests. > >> +out = qemu_img_pipe("measure", "-O", "qcow2", "--output", "json", src_disk) > >> +measure = json.loads(out) > >> +qemu_img_create("-f", "raw", tar_file, str(measure["required"])) > > > > Should this be measure["required"] + 1536? > > The test works without it (because of compression), but yes, if you are > going to test writing into an offset, you should oversize your file by > that same offset. Right, in the real code using this I indeed use offset + required. > >> + > >> +nbd_sock = file_path("nbd-sock", base_dir=iotests.sock_dir) > >> +nbd_uri = "nbd+unix:///exp?socket=" + nbd_sock > >> + > >> +# Use raw format to allow creating qcow2 directy into tar file. > >> +qemu_nbd( > >> + "--socket", nbd_sock, > >> + "--persistent", > >> + "--export-name", "exp", > >> + "--format", "raw", > >> + "--offset", "1536", > >> + tar_file) > >> + > >> +iotests.log("=== Target image info ===") > >> +qemu_img_log("info", nbd_uri) > >> + > >> +# Write image into the tar file. In a real applicatio we would write a tar > > > > *application > > > > >> +=== Converted image check === > >> +No errors were found on the image. > >> +1/160 = 0.62% allocated, 100.00% fragmented, 100.00% compressed clusters > >> +Image end offset: 393216 > > > > I hope none of this is fs-dependant. (I don’t think it is, but who > > knows. I suppose we’ll find out.) > > Indeed - time to see what CI thinks of this. > > At any rate, given the urgency of getting pull requests for -rc2 in > before slamming Peter tomorrow, I'll probably try to touch up the issues > Max pointed out and queue it today. Thanks Max and Eric. Should I post a fixed version later today?
On 7/27/20 9:35 AM, Nir Soffer wrote: >> I guess it's okay that you don't create a real tar file here, but >> listing the commands to create it (even as a comment) is better than >> just saying "trust me". And it doesn't seem like that much more work - >> it looks like the key to your test is that you created a tar file >> containing two files, where the first file was less than 512 bytes and >> the second file is your target destination that you will be rewriting. > > The real code is more complicated, something like: > > offset = tar.fileobj.tell() + BLOCK_SIZE > > with open(tar.name, "r+") as f: > f.truncate(offset + measure["required"]) > > convert_image(image, tar.name, offset) > > check = check_image(tar.name, offset) > size = check["image-end-offset"] > > member = tarfile.TarInfo(name) > member.size = size > tar.addfile(member) > > tar_size = offset + round_up(size) > > tar.fileobj.seek(tar_size) > with open(tar.name, "r+") as f: > f.truncate(tar_size) > > I'm not sure it helps qemu developers working on these tests. The closer the iotest is to reality, the more likely it will serve as a good regression test. Cutting corners risks a test that passes in isolation even when we've done something that breaks the overall process in one of the corners you cut. >> >> At any rate, given the urgency of getting pull requests for -rc2 in >> before slamming Peter tomorrow, I'll probably try to touch up the issues >> Max pointed out and queue it today. > > Thanks Max and Eric. > > Should I post a fixed version later today? A v2 would be helpful.
On Mon, Jul 27, 2020 at 5:41 PM Eric Blake <eblake@redhat.com> wrote: > > On 7/27/20 9:35 AM, Nir Soffer wrote: > > >> I guess it's okay that you don't create a real tar file here, but > >> listing the commands to create it (even as a comment) is better than > >> just saying "trust me". And it doesn't seem like that much more work - > >> it looks like the key to your test is that you created a tar file > >> containing two files, where the first file was less than 512 bytes and > >> the second file is your target destination that you will be rewriting. > > > > The real code is more complicated, something like: > > > > offset = tar.fileobj.tell() + BLOCK_SIZE > > > > with open(tar.name, "r+") as f: > > f.truncate(offset + measure["required"]) > > > > convert_image(image, tar.name, offset) > > > > check = check_image(tar.name, offset) > > size = check["image-end-offset"] > > > > member = tarfile.TarInfo(name) > > member.size = size > > tar.addfile(member) > > > > tar_size = offset + round_up(size) > > > > tar.fileobj.seek(tar_size) > > with open(tar.name, "r+") as f: > > f.truncate(tar_size) > > > > I'm not sure it helps qemu developers working on these tests. > > The closer the iotest is to reality, the more likely it will serve as a > good regression test. Cutting corners risks a test that passes in > isolation even when we've done something that breaks the overall process > in one of the corners you cut. I'll add this code then. > >> > >> At any rate, given the urgency of getting pull requests for -rc2 in > >> before slamming Peter tomorrow, I'll probably try to touch up the issues > >> Max pointed out and queue it today. > > > > Thanks Max and Eric. > > > > Should I post a fixed version later today? > > A v2 would be helpful. Will post later today.
On Mon, Jul 27, 2020 at 1:05 PM Max Reitz <mreitz@redhat.com> wrote: > > On 26.07.20 17:25, Nir Soffer wrote: > > Add test for "qemu-img convert -O qcow2 -c" to NBD target. The use case > > is writing compressed disk content to OVA archive. > > > > Signed-off-by: Nir Soffer <nsoffer@redhat.com> > > --- > > tests/qemu-iotests/302 | 83 ++++++++++++++++++++++++++++++++++++++ > > tests/qemu-iotests/302.out | 27 +++++++++++++ > > tests/qemu-iotests/group | 1 + > > 3 files changed, 111 insertions(+) > > create mode 100755 tests/qemu-iotests/302 > > create mode 100644 tests/qemu-iotests/302.out > > > > diff --git a/tests/qemu-iotests/302 b/tests/qemu-iotests/302 > > new file mode 100755 > > index 0000000000..cefde1f7cf > > --- /dev/null > > +++ b/tests/qemu-iotests/302 > > @@ -0,0 +1,83 @@ > > +#!/usr/bin/env python3 > > +# > > +# Tests conveting qcow2 compressed to NBD > > *converting > > > +# > > +# Copyright (c) 2020 Nir Soffer <nirsof@gmail.com> > > +# > > +# 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/>. > > +# > > +# owner=nirsof@gmail.com > > + > > +import json > > +import iotests > > + > > +from iotests import ( > > + file_path, > > + qemu_img, > > + qemu_img_create, > > + qemu_img_log, > > + qemu_img_pipe, > > + qemu_io, > > + qemu_nbd, > > +) > > + > > +iotests.script_initialize(supported_fmts=["qcow2"]) > > + > > +# Create source disk, format does not matter. > > +src_disk = file_path("disk.img") > > +qemu_img_create("-f", "raw", src_disk, "10m") > > If the format doesn’t matter, why not just use qcow2 and so put > iotests.imgfmt here? (And everywhere else where you now have -f raw.) I tried to use the simplest setup that is less likely to break, but thinking about CI environments with strange storage, maybe using qcow2 source disk will be more robust. > > +qemu_io("-f", "raw", "-c", "write 1m 64K", src_disk) > > (Except I think qemu_io already has -f qcow2 in its arguments by > default, so specifying the format wouldn’t even be necessary here.) > > > +# The use case is writing qcow2 image directly into a tar file. Code to create > > +# real tar file not included. > > +# > > +# offset content > > +# ------------------------------- > > +# 0 first memebr header > > *member > > > +# 512 first member data > > +# 1024 second memeber header > > *member > > > +# 1536 second member data > > + > > +tar_file = file_path("test.tar") > > +out = qemu_img_pipe("measure", "-O", "qcow2", "--output", "json", src_disk) > > +measure = json.loads(out) > > +qemu_img_create("-f", "raw", tar_file, str(measure["required"])) > > Should this be measure["required"] + 1536? > > > + > > +nbd_sock = file_path("nbd-sock", base_dir=iotests.sock_dir) > > +nbd_uri = "nbd+unix:///exp?socket=" + nbd_sock > > + > > +# Use raw format to allow creating qcow2 directy into tar file. > > +qemu_nbd( > > + "--socket", nbd_sock, > > + "--persistent", > > + "--export-name", "exp", > > + "--format", "raw", > > + "--offset", "1536", > > + tar_file) > > + > > +iotests.log("=== Target image info ===") > > +qemu_img_log("info", nbd_uri) > > + > > +# Write image into the tar file. In a real applicatio we would write a tar > > *application > > > +# entry after writing the image. > > +qemu_img("convert", "-f", "raw", "-O", "qcow2", "-c", src_disk, nbd_uri) > > + > > +iotests.log("=== Converted image info ===") > > +qemu_img_log("info", nbd_uri) > > + > > +iotests.log("=== Converted image check ===") > > +qemu_img_log("check", nbd_uri) > > + > > +iotests.log("=== Comparing to source disk ===") > > +qemu_img_log("compare", src_disk, nbd_uri) > > diff --git a/tests/qemu-iotests/302.out b/tests/qemu-iotests/302.out > > new file mode 100644 > > index 0000000000..babef3d574 > > --- /dev/null > > +++ b/tests/qemu-iotests/302.out > > @@ -0,0 +1,27 @@ > > +=== Target image info === > > +image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock > > +file format: raw > > +virtual size: 446 KiB (457216 bytes) > > +disk size: unavailable > > + > > +=== Converted image info === > > +image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock > > +file format: qcow2 > > +virtual size: 10 MiB (10485760 bytes) > > +disk size: unavailable > > +cluster_size: 65536 > > +Format specific information: > > + compat: 1.1 > > + compression type: zlib > > + lazy refcounts: false > > + refcount bits: 16 > > + corrupt: false > > + > > +=== Converted image check === > > +No errors were found on the image. > > +1/160 = 0.62% allocated, 100.00% fragmented, 100.00% compressed clusters > > +Image end offset: 393216 > > I hope none of this is fs-dependant. (I don’t think it is, but who > knows. I suppose we’ll find out.) I don't think the check would be affected, but maybe the compare step can use the strict option if we change to qcow2 source disk. > > Max > > > +=== Comparing to source disk === > > +Images are identical. > > + > > diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group > > index 1d0252e1f0..1e1cb27bc8 100644 > > --- a/tests/qemu-iotests/group > > +++ b/tests/qemu-iotests/group > > @@ -308,3 +308,4 @@ > > 297 meta > > 299 auto quick > > 301 backing quick > > +302 quick > > > >
diff --git a/tests/qemu-iotests/302 b/tests/qemu-iotests/302 new file mode 100755 index 0000000000..cefde1f7cf --- /dev/null +++ b/tests/qemu-iotests/302 @@ -0,0 +1,83 @@ +#!/usr/bin/env python3 +# +# Tests conveting qcow2 compressed to NBD +# +# Copyright (c) 2020 Nir Soffer <nirsof@gmail.com> +# +# 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/>. +# +# owner=nirsof@gmail.com + +import json +import iotests + +from iotests import ( + file_path, + qemu_img, + qemu_img_create, + qemu_img_log, + qemu_img_pipe, + qemu_io, + qemu_nbd, +) + +iotests.script_initialize(supported_fmts=["qcow2"]) + +# Create source disk, format does not matter. +src_disk = file_path("disk.img") +qemu_img_create("-f", "raw", src_disk, "10m") +qemu_io("-f", "raw", "-c", "write 1m 64K", src_disk) + +# The use case is writing qcow2 image directly into a tar file. Code to create +# real tar file not included. +# +# offset content +# ------------------------------- +# 0 first memebr header +# 512 first member data +# 1024 second memeber header +# 1536 second member data + +tar_file = file_path("test.tar") +out = qemu_img_pipe("measure", "-O", "qcow2", "--output", "json", src_disk) +measure = json.loads(out) +qemu_img_create("-f", "raw", tar_file, str(measure["required"])) + +nbd_sock = file_path("nbd-sock", base_dir=iotests.sock_dir) +nbd_uri = "nbd+unix:///exp?socket=" + nbd_sock + +# Use raw format to allow creating qcow2 directy into tar file. +qemu_nbd( + "--socket", nbd_sock, + "--persistent", + "--export-name", "exp", + "--format", "raw", + "--offset", "1536", + tar_file) + +iotests.log("=== Target image info ===") +qemu_img_log("info", nbd_uri) + +# Write image into the tar file. In a real applicatio we would write a tar +# entry after writing the image. +qemu_img("convert", "-f", "raw", "-O", "qcow2", "-c", src_disk, nbd_uri) + +iotests.log("=== Converted image info ===") +qemu_img_log("info", nbd_uri) + +iotests.log("=== Converted image check ===") +qemu_img_log("check", nbd_uri) + +iotests.log("=== Comparing to source disk ===") +qemu_img_log("compare", src_disk, nbd_uri) diff --git a/tests/qemu-iotests/302.out b/tests/qemu-iotests/302.out new file mode 100644 index 0000000000..babef3d574 --- /dev/null +++ b/tests/qemu-iotests/302.out @@ -0,0 +1,27 @@ +=== Target image info === +image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock +file format: raw +virtual size: 446 KiB (457216 bytes) +disk size: unavailable + +=== Converted image info === +image: nbd+unix:///exp?socket=SOCK_DIR/PID-nbd-sock +file format: qcow2 +virtual size: 10 MiB (10485760 bytes) +disk size: unavailable +cluster_size: 65536 +Format specific information: + compat: 1.1 + compression type: zlib + lazy refcounts: false + refcount bits: 16 + corrupt: false + +=== Converted image check === +No errors were found on the image. +1/160 = 0.62% allocated, 100.00% fragmented, 100.00% compressed clusters +Image end offset: 393216 + +=== Comparing to source disk === +Images are identical. + diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 1d0252e1f0..1e1cb27bc8 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -308,3 +308,4 @@ 297 meta 299 auto quick 301 backing quick +302 quick
Add test for "qemu-img convert -O qcow2 -c" to NBD target. The use case is writing compressed disk content to OVA archive. Signed-off-by: Nir Soffer <nsoffer@redhat.com> --- tests/qemu-iotests/302 | 83 ++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/302.out | 27 +++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 111 insertions(+) create mode 100755 tests/qemu-iotests/302 create mode 100644 tests/qemu-iotests/302.out