iotests: add filter_qmp_generated_node_ids()

Add a filter function for QMP responses that contain QEMU's
automatically generated node ids. The ids change between runs and must
be masked in the reference output.

The next commit will use this new function.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20240118144823.1497953-2-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit da62b507a20510d819bcfbe8f5e573409b954006)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index ef66fbd62b0b42bbc77a4ab64828b805f79796dc..1dd41e68ee84ac80362cf216173d72bcb95e867b 100644 (file)
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -646,6 +646,13 @@ def filter_qmp_virtio_scsi(qmsg):
 def filter_generated_node_ids(msg):
     return re.sub("#block[0-9]+", "NODE_NAME", msg)
 
+def filter_qmp_generated_node_ids(qmsg):
+    def _filter(_key, value):
+        if is_str(value):
+            return filter_generated_node_ids(value)
+        return value
+    return filter_qmp(qmsg, _filter)
+
 def filter_img_info(output: str, filename: str,
                     drop_child_info: bool = True) -> str:
     lines = []