tests/migration-tests: Verify postcopy-recover-setup status

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.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index 32e31ff..e61096a 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -1414,6 +1414,12 @@
     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.
      */