qemu-iotests: add ability to exclude certain protocols from tests

Add the ability for shell script tests to exclude specific
protocols.  This is useful to allow all protocols except ones known to
not support a feature used in the test (e.g. .bdrv_create).

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index a3d904fc22..6c0fd4cc61 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -379,6 +379,18 @@ _supported_proto()
     _notrun "not suitable for this image protocol: $IMGPROTO"
 }
 
+# tests whether $IMGPROTO is specified as an unsupported image protocol for a test
+#
+_unsupported_proto()
+{
+    for f; do
+        if [ "$f" = "$IMGPROTO" ]; then
+            _notrun "not suitable for this image protocol: $IMGPROTO"
+            return
+        fi
+    done
+}
+
 # tests whether the host OS is one of the supported OSes for a test
 #
 _supported_os()