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iotests: Cache supported_formats() 

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20190917092004.999-8-mreitz@redhat.com
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2019-09-17 11:20:04 +02:00
parent 753b31b5f3
commit 767de537b1
1 changed files with 11 additions and 3 deletions
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14
tests/qemu-iotests/iotests.py
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@ -921,9 +921,17 @@ def qemu_pipe(*args):
def supported_formats(read_only=False): def supported_formats(read_only=False):
'''Set 'read_only' to True to check ro-whitelist '''Set 'read_only' to True to check ro-whitelist
Otherwise, rw-whitelist is checked''' Otherwise, rw-whitelist is checked'''
format_message = qemu_pipe("-drive", "format=help")
line = 1 if read_only else 0 if not hasattr(supported_formats, "formats"):
return format_message.splitlines()[line].split(":")[1].split() supported_formats.formats = {}
if read_only not in supported_formats.formats:
format_message = qemu_pipe("-drive", "format=help")
line = 1 if read_only else 0
supported_formats.formats[read_only] = \
format_message.splitlines()[line].split(":")[1].split()
return supported_formats.formats[read_only]
def skip_if_unsupported(required_formats=[], read_only=False): def skip_if_unsupported(required_formats=[], read_only=False):
'''Skip Test Decorator '''Skip Test Decorator