qapi: Use QNull for a more regular visit_type_null()

[qemu.git] / tests / check-qnull.c

diff --git a/tests/check-qnull.c b/tests/check-qnull.c
index 1ab7c983a55f256e8d6b31a9e2e55f7b2d37a578..5c6eb0adc8ce19ccff0c4a207ab3eb9c5f9d2206 100644 (file)
--- a/tests/check-qnull.c
+++ b/tests/check-qnull.c
@@ -38,6 +38,7 @@ static void qnull_visit_test(void)
 {
     QObject *obj;
     Visitor *v;
+    QNull *null;
 
     /*
      * Most tests of interactions between QObject and visitors are in
@@ -49,13 +50,17 @@ static void qnull_visit_test(void)
     obj = QOBJECT(qnull());
     v = qobject_input_visitor_new(obj);
     qobject_decref(obj);
-    visit_type_null(v, NULL, &error_abort);
+    visit_type_null(v, NULL, &null, &error_abort);
+    g_assert(obj == QOBJECT(&qnull_));
+    QDECREF(null);
     visit_free(v);
 
+    null = NULL;
     v = qobject_output_visitor_new(&obj);
-    visit_type_null(v, NULL, &error_abort);
+    visit_type_null(v, NULL, &null, &error_abort);
     visit_complete(v, &obj);
     g_assert(obj == QOBJECT(&qnull_));
+    QDECREF(null);
     qobject_decref(obj);
     visit_free(v);