[PATCH v3 10/11] tests/migration-tests: Verify postcopy-recover-setup status

[Peter Xu <peterx@redhat.com>]

Making sure the postcopy-recover-setup status is present in the postcopy
failure unit test.  Note that it only applies to src QEMU not dest.

This also introduces the tiny but helpful migration_event_wait() helper.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 tests/qtest/migration-test.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index c015e801ac..de81e28088 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -1412,6 +1412,12 @@ static void postcopy_recover_fail(QTestState *from, QTestState *to)
     migrate_recover(to, "fd:fd-mig");
     migrate_qmp(from, to, "fd:fd-mig", NULL, "{'resume': true}");
 
+    /*
+     * Source QEMU has an extra RECOVER_SETUP phase, dest doesn't have it.
+     * Make sure it appears along the way.
+     */
+    migration_event_wait(from, "postcopy-recover-setup");
+
     /*
      * Make sure both QEMU instances will go into RECOVER stage, then test
      * kicking them out using migrate-pause.
-- 
2.45.0