[PATCH v9 14/14] tests: Add postcopy preempt tests

[Peter Xu <peterx@redhat.com>]

Four tests are added for preempt mode:

  - Postcopy plain
  - Postcopy recovery
  - Postcopy tls
  - Postcopy tls+recovery

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 tests/qtest/migration-test.c | 56 ++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index 81ef9741cd..81780189a8 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -569,6 +569,7 @@ typedef struct {
 
     /* Postcopy specific fields */
     void *postcopy_data;
+    bool postcopy_preempt;
 } MigrateCommon;
 
 static int test_migrate_start(QTestState **from, QTestState **to,
@@ -1074,6 +1075,11 @@ static int migrate_postcopy_prepare(QTestState **from_ptr,
     migrate_set_capability(to, "postcopy-ram", true);
     migrate_set_capability(to, "postcopy-blocktime", true);
 
+    if (args->postcopy_preempt) {
+        migrate_set_capability(from, "postcopy-preempt", true);
+        migrate_set_capability(to, "postcopy-preempt", true);
+    }
+
     migrate_ensure_non_converge(from);
 
     /* Wait for the first serial output from the source */
@@ -1137,6 +1143,26 @@ static void test_postcopy_tls_psk(void)
     test_postcopy_common(&args);
 }
 
+static void test_postcopy_preempt(void)
+{
+    MigrateCommon args = {
+        .postcopy_preempt = true,
+    };
+
+    test_postcopy_common(&args);
+}
+
+static void test_postcopy_preempt_tls_psk(void)
+{
+    MigrateCommon args = {
+        .postcopy_preempt = true,
+        .start_hook = test_migrate_tls_psk_start_match,
+        .finish_hook = test_migrate_tls_psk_finish,
+    };
+
+    test_postcopy_common(&args);
+}
+
 static void test_postcopy_recovery_common(MigrateCommon *args)
 {
     QTestState *from, *to;
@@ -1216,6 +1242,27 @@ static void test_postcopy_recovery_tls_psk(void)
     test_postcopy_recovery_common(&args);
 }
 
+static void test_postcopy_preempt_recovery(void)
+{
+    MigrateCommon args = {
+        .postcopy_preempt = true,
+    };
+
+    test_postcopy_recovery_common(&args);
+}
+
+/* This contains preempt+recovery+tls test altogether */
+static void test_postcopy_preempt_all(void)
+{
+    MigrateCommon args = {
+        .postcopy_preempt = true,
+        .start_hook = test_migrate_tls_psk_start_match,
+        .finish_hook = test_migrate_tls_psk_finish,
+    };
+
+    test_postcopy_recovery_common(&args);
+}
+
 static void test_baddest(void)
 {
     MigrateStart args = {
@@ -2183,6 +2230,15 @@ int main(int argc, char **argv)
 #ifdef CONFIG_GNUTLS
         qtest_add_func("/migration/postcopy/recovery/tls/psk",
                        test_postcopy_recovery_tls_psk);
+#endif /* CONFIG_GNUTLS */
+        qtest_add_func("/migration/postcopy/preempt/plain", test_postcopy_preempt);
+        qtest_add_func("/migration/postcopy/preempt/recovery/plain",
+                       test_postcopy_preempt_recovery);
+#ifdef CONFIG_GNUTLS
+        qtest_add_func("/migration/postcopy/preempt/tls/psk",
+                       test_postcopy_preempt_tls_psk);
+        qtest_add_func("/migration/postcopy/preempt/recovery/tls/psk",
+                       test_postcopy_preempt_all);
 #endif /* CONFIG_GNUTLS */
     }
     qtest_add_func("/migration/bad_dest", test_baddest);
-- 
2.32.0