[PATCH 1/2] tests/qtest/migration: Ignore if socket-address is missing to avoid crash below

[Het Gala]

'object' can return NULL if there is no socket-address, such as with a
file migration. Then the visitor code below fails and the test crashes.

Ignore and return NULL when socket-address is missing in the reply so
we don't break future tests that use a non-socket type.

Suggested-by: Fabiano Rosas <faro...@suse.de>
Signed-off-by: Het Gala <het.g...@nutanix.com>
---
 tests/qtest/migration-helpers.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/qtest/migration-helpers.c b/tests/qtest/migration-helpers.c
index b2a90469fb..fb7156f09a 100644
--- a/tests/qtest/migration-helpers.c
+++ b/tests/qtest/migration-helpers.c
@@ -90,6 +90,10 @@ static SocketAddress *migrate_get_socket_address(QTestState 
*who)
     QObject *object;
 
     rsp = migrate_query(who);
+
+    if (!qdict_haskey(rsp, "socket-address")) {
+        return NULL;
+    }
     object = qdict_get(rsp, "socket-address");
 
     iv = qobject_input_visitor_new(object);
-- 
2.22.3