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>

diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index a3d904fc22b0503a7728ac961334d366293e45e5..6c0fd4cc61b8e3df4407db516f18d2305202b35d 100644 (file)
--- 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()