03.04.2018 16:54, Kevin Wolf wrote:
Am 30.03.2018 um 17:16 hat Vladimir Sementsov-Ogievskiy geschrieben:
Add an assert (we don't want set both arguments) and remove
duplication.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
---
  tests/qemu-iotests/iotests.py | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index b5d7945..83c454d 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -532,9 +532,9 @@ def notrun(reason):
      sys.exit(0)
def verify_image_format(supported_fmts=[], unsupported_fmts=[]):
-    if supported_fmts and (imgfmt not in supported_fmts):
-        notrun('not suitable for this image format: %s' % imgfmt)
-    if unsupported_fmts and (imgfmt in unsupported_fmts):
+    assert not (supported_fmts and unsupported_fmts)
+    not_sup = supported_fmts and (imgfmt not in supported_fmts)
+    if not_sup or (imgfmt in unsupported_fmts):
          notrun('not suitable for this image format: %s' % imgfmt)
Before the change, we accepted None for both parameters. Now None is
still accepted for supported_fmts, but not for unsupported_fmts any
more.

I don't think we actually make use of None for either, so I don't really
mind whether we allow it or not, but we should be consistent between
both parameters.

Kevin

I think, we should not care about it. The function takes lists. So, you can
1. pass a parameter, which must be list
2. do not pass it, it will become [] by default.

So if someone pass None directly, its a bug. Like if someone will pass int or float..

--
Best regards,
Vladimir


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