qapi: Implement deprecated-output=hide for QMP events

This policy suppresses deprecated bits in output, and thus permits
"testing the future".  Implement it for QMP events: suppress
deprecated ones.

No QMP event is deprecated right now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-5-armbru@redhat.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/unit/test-qmp-event.c b/tests/unit/test-qmp-event.c
index 7dd0053190..ab059fb5c2 100644
--- a/tests/unit/test-qmp-event.c
+++ b/tests/unit/test-qmp-event.c
@@ -14,6 +14,7 @@
 #include "qemu/osdep.h"
 
 #include "qemu-common.h"
+#include "qapi/compat-policy.h"
 #include "qapi/error.h"
 #include "qapi/qmp/qbool.h"
 #include "qapi/qmp/qdict.h"
@@ -140,6 +141,24 @@ static void test_event_d(TestEventData *data,
     qobject_unref(data->expect);
 }
 
+static void test_event_deprecated(TestEventData *data, const void *unused)
+{
+    data->expect = qdict_from_jsonf_nofail("{ 'event': 'TEST-EVENT-FEATURES1' }");
+
+    memset(&compat_policy, 0, sizeof(compat_policy));
+
+    qapi_event_send_test_event_features1();
+    g_assert(data->emitted);
+
+    compat_policy.has_deprecated_output = true;
+    compat_policy.deprecated_output = COMPAT_POLICY_OUTPUT_HIDE;
+    data->emitted = false;
+    qapi_event_send_test_event_features1();
+    g_assert(!data->emitted);
+
+    qobject_unref(data->expect);
+}
+
 int main(int argc, char **argv)
 {
     g_test_init(&argc, &argv, NULL);
@@ -148,6 +167,7 @@ int main(int argc, char **argv)
     event_test_add("/event/event_b", test_event_b);
     event_test_add("/event/event_c", test_event_c);
     event_test_add("/event/event_d", test_event_d);
+    event_test_add("/event/deprecated", test_event_deprecated);
     g_test_run();
 
     return 0;