qapi: Implement deprecated-output=hide for QMP event data

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

No QMP event data is deprecated right now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-6-armbru@redhat.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/tests/unit/test-qmp-event.c b/tests/unit/test-qmp-event.c
index ab059fb5c2..047f44ff9a 100644
--- a/tests/unit/test-qmp-event.c
+++ b/tests/unit/test-qmp-event.c
@@ -159,6 +159,26 @@ static void test_event_deprecated(TestEventData *data, const void *unused)
     qobject_unref(data->expect);
 }
 
+static void test_event_deprecated_data(TestEventData *data, const void *unused)
+{
+    memset(&compat_policy, 0, sizeof(compat_policy));
+
+    data->expect = qdict_from_jsonf_nofail("{ 'event': 'TEST-EVENT-FEATURES0',"
+                                           " 'data': { 'foo': 42 } }");
+    qapi_event_send_test_event_features0(42);
+    g_assert(data->emitted);
+
+    qobject_unref(data->expect);
+
+    compat_policy.has_deprecated_output = true;
+    compat_policy.deprecated_output = COMPAT_POLICY_OUTPUT_HIDE;
+    data->expect = qdict_from_jsonf_nofail("{ 'event': 'TEST-EVENT-FEATURES0' }");
+    qapi_event_send_test_event_features0(42);
+    g_assert(data->emitted);
+
+    qobject_unref(data->expect);
+}
+
 int main(int argc, char **argv)
 {
     g_test_init(&argc, &argv, NULL);
@@ -168,6 +188,7 @@ int main(int argc, char **argv)
     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);
+    event_test_add("/event/deprecated_data", test_event_deprecated_data);
     g_test_run();
 
     return 0;