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iotests: Let 216 make use of qemu-io's exit code 

As a showcase of how you can use qemu-io's exit code to determine
success or failure (same for qemu-img), this test is changed to use
qemu_io_silent() instead of qemu_io(), and to assert the exit code
instead of logging the filtered result.

One real advantage of this is that in case of an error, you get a
backtrace that helps you locate the issue in the test file quickly.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-6-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2018-05-09 21:43:02 +02:00
parent 745f2bf4a5
commit e4ca4e981a
2 changed files with 14 additions and 26 deletions
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23
tests/qemu-iotests/216
View File

@ -20,7 +20,7 @@
# Creator/Owner: Max Reitz <mreitz@redhat.com>
import iotests
from iotests import log, qemu_img_pipe, qemu_io, filter_qemu_io
from iotests import log, qemu_img, qemu_io_silent
# Need backing file support
iotests.verify_image_format(supported_fmts=['qcow2', 'qcow', 'qed', 'vmdk'])
@ -50,14 +50,13 @@ with iotests.FilePath('base.img') as base_img_path, \
log('--- Setting up images ---')
log('')
qemu_img_pipe('create', '-f', iotests.imgfmt, base_img_path, '64M')
assert qemu_img('create', '-f', iotests.imgfmt, base_img_path, '64M') == 0
assert qemu_io_silent(base_img_path, '-c', 'write -P 1 0M 1M') == 0
assert qemu_img('create', '-f', iotests.imgfmt, '-b', base_img_path,
top_img_path) == 0
assert qemu_io_silent(top_img_path, '-c', 'write -P 2 1M 1M') == 0
log(filter_qemu_io(qemu_io(base_img_path, '-c', 'write -P 1 0M 1M')))
qemu_img_pipe('create', '-f', iotests.imgfmt, '-b', base_img_path,
top_img_path)
log(filter_qemu_io(qemu_io(top_img_path, '-c', 'write -P 2 1M 1M')))
log('Done')
log('')
log('--- Doing COR ---')
@ -110,6 +109,8 @@ with iotests.FilePath('base.img') as base_img_path, \
log('--- Checking COR result ---')
log('')
log(filter_qemu_io(qemu_io(base_img_path, '-c', 'discard 0 64M')))
log(filter_qemu_io(qemu_io(top_img_path, '-c', 'read -P 1 0M 1M')))
log(filter_qemu_io(qemu_io(top_img_path, '-c', 'read -P 2 1M 1M')))
assert qemu_io_silent(base_img_path, '-c', 'discard 0 64M') == 0
assert qemu_io_silent(top_img_path, '-c', 'read -P 1 0M 1M') == 0
assert qemu_io_silent(top_img_path, '-c', 'read -P 2 1M 1M') == 0
log('Done')

17
tests/qemu-iotests/216.out
View File

@ -3,12 +3,7 @@
--- Setting up images ---
wrote 1048576/1048576 bytes at offset 0
1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1048576/1048576 bytes at offset 1048576
1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Done
--- Doing COR ---
@ -17,12 +12,4 @@ wrote 1048576/1048576 bytes at offset 1048576
--- Checking COR result ---
discard 67108864/67108864 bytes at offset 0
64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1048576/1048576 bytes at offset 0
1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1048576/1048576 bytes at offset 1048576
1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Done