[PULL 34/37] iotests: Allow supported and unsupported formats at the same time

[Kevin Wolf]

This is useful for specifying 'generic' as supported (which includes
only writable image formats), but still excluding some incompatible
writable formats.

It also removes more lines than it adds.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200924152717.287415-31-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 tests/qemu-iotests/iotests.py | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 9695c917e4..f212cec446 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -1062,16 +1062,12 @@ def case_notrun(reason):
 
 def _verify_image_format(supported_fmts: Sequence[str] = (),
                          unsupported_fmts: Sequence[str] = ()) -> None:
-    assert not (supported_fmts and unsupported_fmts)
-
     if 'generic' in supported_fmts and \
             os.environ.get('IMGFMT_GENERIC', 'true') == 'true':
         # similar to
         #   _supported_fmt generic
         # for bash tests
-        if imgfmt == 'luks':
-            verify_working_luks()
-        return
+        supported_fmts = ()
 
     not_sup = supported_fmts and (imgfmt not in supported_fmts)
     if not_sup or (imgfmt in unsupported_fmts):
-- 
2.25.4