[Qemu-devel] [PATCH for-3.1 v10 07/31] iotests.py: Add node_info()

[Max Reitz]

This function queries a node; since we cannot do that right now, it
executes query-named-block-nodes and returns the matching node's object.

Signed-off-by: Max Reitz <address@hidden>
---
 tests/qemu-iotests/iotests.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 5c45788dac..6583001ac8 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -465,6 +465,16 @@ class VM(qtest.QEMUQtestMachine):
                 else:
                     iotests.log(ev)
 
+    def node_info(self, node_name, require_existence=True):
+        nodes = self.qmp('query-named-block-nodes')
+        for x in nodes['return']:
+            if x['node-name'] == node_name:
+                return x
+        if require_existence:
+            assert False
+        else:
+            return None
+
 
 index_re = re.compile(r'([^\[]+)\[([^\]]+)\]')
 
-- 
2.17.1