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iotests: Add iotests.image_size

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This retrieves the virtual size of the image out of qemu-img info.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2016-04-20 10:48:35 +08:00 committed by Kevin Wolf
parent 4150ae60eb
commit 74f69050fe
1 changed files with 6 additions and 0 deletions
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6
tests/qemu-iotests/iotests.py
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@ -28,6 +28,7 @@ sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts', '
import qmp
import qtest
import struct
import json
# This will not work if arguments contain spaces but is necessary if we
@ -103,6 +104,11 @@ def create_image(name, size):
i = i + 512
file.close()
def image_size(img):
'''Return image's virtual size'''
r = qemu_img_pipe('info', '--output=json', '-f', imgfmt, img)
return json.loads(r)['virtual-size']
test_dir_re = re.compile(r"%s" % test_dir)
def filter_test_dir(msg):
return test_dir_re.sub("TEST_DIR", msg)