[PATCH v7 7/8] tests/qtest/migration: Add multifd_tcp_plain test using list of channels instead of uri

[Het Gala]

Add a positive test to check multifd live migration but this time
using list of channels (restricted to 1) as the starting point
instead of simple uri string.

Signed-off-by: Het Gala <het.gala@nutanix.com>
Suggested-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
---
 tests/qtest/migration-test.c | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index 62e52a29cc..7ea13c8e5b 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -655,6 +655,13 @@ typedef struct {
      */
     const char *connect_uri;
 
+    /*
+     * Optional: JSON-formatted list of src QEMU URIs. If a port is
+     * defined as '0' in any QDict key a value of '0' will be
+     * automatically converted to the correct destination port.
+     */
+    const char *connect_channels;
+
     /* Optional: callback to run at start to set migration parameters */
     TestMigrateStartHook start_hook;
     /* Optional: callback to run at finish to cleanup */
@@ -2758,7 +2765,7 @@ test_migrate_precopy_tcp_multifd_zstd_start(QTestState 
*from,
 }
 #endif /* CONFIG_ZSTD */
 
-static void test_multifd_tcp_none(void)
+static void test_multifd_tcp_uri_none(void)
 {
     MigrateCommon args = {
         .listen_uri = "defer",
@@ -2803,6 +2810,21 @@ static void test_multifd_tcp_no_zero_page(void)
     test_precopy_common(&args);
 }
 
+static void test_multifd_tcp_channels_none(void)
+{
+    MigrateCommon args = {
+        .listen_uri = "defer",
+        .start_hook = test_migrate_precopy_tcp_multifd_start,
+        .live = true,
+        .connect_channels = "[ { 'channel-type': 'main',"
+                            "    'addr': { 'transport': 'socket',"
+                            "              'type': 'inet',"
+                            "              'host': '127.0.0.1',"
+                            "              'port': '0' } } ]",
+    };
+    test_precopy_common(&args);
+}
+
 static void test_multifd_tcp_zlib(void)
 {
     MigrateCommon args = {
@@ -3712,8 +3734,10 @@ int main(int argc, char **argv)
                                test_migrate_dirty_limit);
         }
     }
-    migration_test_add("/migration/multifd/tcp/plain/none",
-                       test_multifd_tcp_none);
+    migration_test_add("/migration/multifd/tcp/uri/plain/none",
+                       test_multifd_tcp_uri_none);
+    migration_test_add("/migration/multifd/tcp/channels/plain/none",
+                       test_multifd_tcp_channels_none);
     migration_test_add("/migration/multifd/tcp/plain/zero-page/legacy",
                        test_multifd_tcp_zero_page_legacy);
     migration_test_add("/migration/multifd/tcp/plain/zero-page/none",
-- 
2.22.3