fix tests

packages/stream_chat_flutter/test/src/channel_preview_test.dart

@@ -60,10 +60,6 @@ void main() {
             )
           ]));
 
-      when(() => channelState.typingEvents).thenReturn([]);
-      when(() => channelState.typingEventsStream)
-          .thenAnswer((_) => Stream.value([]));
-
       await tester.pumpWidget(MaterialApp(
         home: StreamChat(
           client: client,

packages/stream_chat_flutter/test/src/full_screen_media_test.dart

@@ -53,15 +53,15 @@ void main() {
               user: User(id: 'other-user'),
             )
           ]));
-
+      when(() => channelState.typingEvents).thenAnswer((i) => {
-      when(() => channelState.typingEvents).thenAnswer((i) => [
+            User(id: 'other-user', extraData: {'name': 'demo'}):
-            User(id: 'other-user', extraData: {'name': 'demo'})
+                const Event(type: EventType.typingStart),
-          ]);
+          });
       when(() => channelState.typingEventsStream)
-          .thenAnswer((i) => Stream.value([
+          .thenAnswer((i) => Stream.value({
-                User(id: 'other-user', extraData: {'name': 'demo'}),
+                User(id: 'other-user', extraData: {'name': 'demo'}):
-                User(id: 'other-user', extraData: {'name': 'demo'}),
+                    const Event(type: EventType.typingStart),
-              ]));
+              }));
 
       await tester.pumpWidget(MaterialApp(
         home: StreamChat(

packages/stream_chat_flutter/test/src/mocks.dart

@@ -23,8 +23,8 @@ class MockChannel extends Mock implements Channel {
 
 class MockChannelState extends Mock implements ChannelClientState {
   MockChannelState() {
-    when(() => typingEvents).thenReturn([]);
+    when(() => typingEvents).thenReturn({});
-    when(() => typingEventsStream).thenAnswer((_) => Stream.value([]));
+    when(() => typingEventsStream).thenAnswer((_) => Stream.value({}));
   }
 }
 

packages/stream_chat_flutter/test/src/typing_indicator_test.dart

@@ -53,14 +53,15 @@ void main() {
             )
           ]));
 
-      when(() => channelState.typingEvents).thenAnswer((i) => [
+      when(() => channelState.typingEvents).thenAnswer((i) => {
-            User(id: 'other-user', extraData: {'name': 'demo'})
+            User(id: 'other-user', extraData: {'name': 'demo'}):
-          ]);
+                const Event(type: EventType.typingStart),
+          });
       when(() => channelState.typingEventsStream)
-          .thenAnswer((i) => Stream.value([
+          .thenAnswer((i) => Stream.value({
-                User(id: 'other-user', extraData: {'name': 'demo'}),
+                User(id: 'other-user', extraData: {'name': 'demo'}):
-                User(id: 'other-user', extraData: {'name': 'demo'}),
+                    const Event(type: EventType.typingStart),
-              ]));
+              }));
 
       await tester.pumpWidget(MaterialApp(
         home: StreamChat(