The 'read' commands to qemu-io were malformed, and this invocation only worked by coincidence because the error messages were identical. Oops.
There's no point in checking the patterning of the reference image, so just check the empty image by itself instead. (Note: as of this commit, nothing actually enforces that this command completes successfully, but a forthcoming commit in this series will enforce that qemu_io() must have a zero status code.) Signed-off-by: John Snow <js...@redhat.com> Reviewed-by: Eric Blake <ebl...@redhat.com> Reviewed-by: Hanna Reitz <hre...@redhat.com> --- tests/qemu-iotests/163 | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/tests/qemu-iotests/163 b/tests/qemu-iotests/163 index e4cd4b230f3..c94ad16f4a7 100755 --- a/tests/qemu-iotests/163 +++ b/tests/qemu-iotests/163 @@ -113,10 +113,7 @@ class ShrinkBaseClass(iotests.QMPTestCase): qemu_img('resize', '-f', iotests.imgfmt, '--shrink', test_img, self.shrink_size) - self.assertEqual( - qemu_io('-c', 'read -P 0x00 %s'%self.shrink_size, test_img), - qemu_io('-c', 'read -P 0x00 %s'%self.shrink_size, check_img), - "Verifying image content") + qemu_io('-c', f"read -P 0x00 0 {self.shrink_size}", test_img) self.image_verify() -- 2.34.1