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iotests: replace mutable list default args 

It's bad hygiene: if we modify this list, it will be modified across all
invocations.

(Remaining bad usages are fixed in a subsequent patch which changes the
function signature anyway.)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200331000014.11581-5-jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
John Snow 2020-03-30 20:00:04 -04:00 committed by Max Reitz
parent 368e062003
commit 4eabe0515a
1 changed files with 12 additions and 12 deletions
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24
tests/qemu-iotests/iotests.py
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@ -139,7 +139,7 @@ def qemu_img_log(*args):
log(result, filters=[filter_testfiles])
return result
def img_info_log(filename, filter_path=None, imgopts=False, extra_args=[]):
def img_info_log(filename, filter_path=None, imgopts=False, extra_args=()):
args = ['info']
if imgopts:
args.append('--image-opts')
@ -354,7 +354,7 @@ def filter_qmp_imgfmt(qmsg):
return value
return filter_qmp(qmsg, _filter)
def log(msg, filters=[], indent=None):
def log(msg, filters=(), indent=None):
'''Logs either a string message or a JSON serializable message (like QMP).
If indent is provided, JSON serializable messages are pretty-printed.'''
for flt in filters:
@ -570,7 +570,7 @@ class VM(qtest.QEMUQtestMachine):
result.append(filter_qmp_event(ev))
return result
def qmp_log(self, cmd, filters=[], indent=None, **kwargs):
def qmp_log(self, cmd, filters=(), indent=None, **kwargs):
full_cmd = OrderedDict((
("execute", cmd),
("arguments", ordered_qmp(kwargs))
@ -974,7 +974,7 @@ def case_notrun(reason):
open('%s/%s.casenotrun' % (output_dir, seq), 'a').write(
' [case not run] ' + reason + '\n')
def verify_image_format(supported_fmts=[], unsupported_fmts=[]):
def verify_image_format(supported_fmts=(), unsupported_fmts=()):
assert not (supported_fmts and unsupported_fmts)
if 'generic' in supported_fmts and \
@ -988,7 +988,7 @@ def verify_image_format(supported_fmts=[], unsupported_fmts=[]):
if not_sup or (imgfmt in unsupported_fmts):
notrun('not suitable for this image format: %s' % imgfmt)
def verify_protocol(supported=[], unsupported=[]):
def verify_protocol(supported=(), unsupported=()):
assert not (supported and unsupported)
if 'generic' in supported:
@ -1007,11 +1007,11 @@ def verify_platform(supported=None, unsupported=None):
if not any((sys.platform.startswith(x) for x in supported)):
notrun('not suitable for this OS: %s' % sys.platform)
def verify_cache_mode(supported_cache_modes=[]):
def verify_cache_mode(supported_cache_modes=()):
if supported_cache_modes and (cachemode not in supported_cache_modes):
notrun('not suitable for this cache mode: %s' % cachemode)
def verify_aio_mode(supported_aio_modes=[]):
def verify_aio_mode(supported_aio_modes=()):
if supported_aio_modes and (aiomode not in supported_aio_modes):
notrun('not suitable for this aio mode: %s' % aiomode)
@ -1051,7 +1051,7 @@ def supported_formats(read_only=False):
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
Runs the test if all the required formats are whitelisted'''
def skip_test_decorator(func):
@ -1102,11 +1102,11 @@ def execute_unittest(output, verbosity, debug):
sys.stderr.write(out)
def execute_test(test_function=None,
supported_fmts=[],
supported_fmts=(),
supported_platforms=None,
supported_cache_modes=[], supported_aio_modes={},
unsupported_fmts=[], supported_protocols=[],
unsupported_protocols=[]):
supported_cache_modes=(), supported_aio_modes=(),
unsupported_fmts=(), supported_protocols=(),
unsupported_protocols=()):
"""Run either unittest or script-style tests."""
# We are using TEST_DIR and QEMU_DEFAULT_MACHINE as proxies to