enable senderKey during integration test

integration_test/message_functions_test.js

@@ -19,8 +19,6 @@ describe('Message Functions', function() {
     await common.stopStubSnodeServer();
 
     [app, app2] = await common.startAppsAsFriends();
-    // create group and add new friend
-    await common.addFriendToNewClosedGroup([app, app2], false);
   });
 
   afterEach(async () => {
@@ -52,6 +50,8 @@ describe('Message Functions', function() {
   });
 
   it('can delete message', async () => {
+    // create group and add new friend
+    await common.addFriendToNewClosedGroup([app, app2], false);
     const messageText = 'delete_me';
     await common.sendMessage(app, messageText);
 

preload.js

@@ -485,5 +485,6 @@ if (config.environment.includes('test-integration')) {
     useSnodeProxy: !process.env.USE_STUBBED_NETWORK,
     useOnionRequests: false,
     debugMessageLogs: true,
+    enableSenderKeys: true,
   };
 }