Migrated llc Lists to be nullable instead of being an empty array

packages/stream_chat/test/src/core/api/channel_api_test.dart

@@ -105,11 +105,11 @@ void main() {
     );
 
     expect(res, isNotNull);
-    expect(res.messages.length, channelState.messages.length);
-    expect(res.pinnedMessages.length, channelState.pinnedMessages.length);
-    expect(res.members.length, channelState.members.length);
-    expect(res.read.length, channelState.read.length);
-    expect(res.watchers.length, channelState.watchers.length);
+    expect(res.messages?.length, channelState.messages?.length);
+    expect(res.pinnedMessages?.length, channelState.pinnedMessages?.length);
+    expect(res.members?.length, channelState.members?.length);
+    expect(res.read?.length, channelState.read?.length);
+    expect(res.watchers?.length, channelState.watchers?.length);
     expect(res.watcherCount, channelState.watcherCount);
 
     verify(() => client.post(path, data: any(named: 'data'))).called(1);

packages/stream_chat/test/src/core/models/attachment_test.dart

@@ -19,8 +19,10 @@ void main() {
         attachment.thumbUrl,
         'https://media0.giphy.com/media/3o7TKnCdBx5cMg0qti/giphy.gif',
       );
+      expect(attachment.actions, isNotNull);
+      expect(attachment.actions, isNotEmpty);
       expect(attachment.actions, hasLength(3));
-      expect(attachment.actions[0], isA<Action>());
+      expect(attachment.actions![0], isA<Action>());
     });
 
     test('should serialize to json correctly', () {

packages/stream_chat/test/src/core/models/channel_state_test.dart

@@ -30,14 +30,16 @@ void main() {
         channelState.channel?.extraData['image'],
         'https://cdn.chrisshort.net/testing-certificate-chains-in-go/GOPHER_MIC_DROP.png',
       );
+      expect(channelState.messages, isNotNull);
+      expect(channelState.messages, isNotEmpty);
       expect(channelState.messages, hasLength(25));
-      expect(channelState.messages[0], isA<Message>());
-      expect(channelState.messages[0], isNotNull);
+      expect(channelState.messages![0], isA<Message>());
+      expect(channelState.messages![0], isNotNull);
       expect(
-        channelState.messages[0].createdAt,
+        channelState.messages![0].createdAt,
         DateTime.parse('2020-01-29T03:23:02.843948Z'),
       );
-      expect(channelState.messages[0].user, isA<User>());
+      expect(channelState.messages![0].user, isA<User>());
       expect(channelState.watcherCount, 5);
     });
 

packages/stream_chat/test/src/db/chat_persistence_client_test.dart

@@ -117,19 +117,20 @@ class TestPersistenceClient extends ChatPersistenceClient {
   Future<void> updateUsers(List<User> users) => Future.value();
 
   @override
-  Future<void> bulkUpdateMembers(Map<String, List<Member>> members) =>
+  Future<void> bulkUpdateMembers(Map<String, List<Member>?> members) =>
       Future.value();
 
   @override
-  Future<void> bulkUpdateMessages(Map<String, List<Message>> messages) =>
+  Future<void> bulkUpdateMessages(Map<String, List<Message>?> messages) =>
       Future.value();
 
   @override
-  Future<void> bulkUpdatePinnedMessages(Map<String, List<Message>> messages) =>
+  Future<void> bulkUpdatePinnedMessages(Map<String, List<Message>?> messages) =>
       Future.value();
 
   @override
-  Future<void> bulkUpdateReads(Map<String, List<Read>> reads) => Future.value();
+  Future<void> bulkUpdateReads(Map<String, List<Read>?> reads) =>
+      Future.value();
 }
 
 void main() {