test: mock RecordPlatform in tests

This commit introduces a mock for `RecordPlatform` to be used in various tests.

The `FakeRecordPlatform` provides default implementations for the `RecordPlatform` interface methods, ensuring that tests relying on audio recording functionality can run without needing actual platform-specific recording capabilities.

This mock has been integrated into the following test files:
- `message_input_test.dart`
- `edit_message_sheet_test.dart`
- `message_actions_modal_test.dart`

In each of these files, the `FakeRecordPlatform` is set as the `RecordPlatform.instance` during `setUp` and restored to the original platform during `tearDown`.

Author: xsahil03x

packages/stream_chat_flutter/test/src/bottom_sheets/edit_message_sheet_test.dart

@@ -2,12 +2,20 @@ import 'package:alchemist/alchemist.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
+import 'package:record/record.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
+import '../fakes.dart';
 import '../material_app_wrapper.dart';
 import '../mocks.dart';
 
 void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  final originalRecordPlatform = RecordPlatform.instance;
+  setUp(() => RecordPlatform.instance = FakeRecordPlatform());
+  tearDown(() => RecordPlatform.instance = originalRecordPlatform);
+
   group('EditMessageSheet tests', () {
     testWidgets('appears on tap', (tester) async {
       final channel = MockChannel();

packages/stream_chat_flutter/test/src/fakes.dart

@@ -1,6 +1,7 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:path_provider_platform_interface/path_provider_platform_interface.dart';
 import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+import 'package:record_platform_interface/record_platform_interface.dart';
 
 const String kTemporaryPath = 'temporaryPath';
 const String kApplicationSupportPath = 'applicationSupportPath';
@@ -101,3 +102,42 @@ class AllNullFakePathProviderPlatform extends Fake
     return null;
   }
 }
+
+class FakeRecordPlatform extends Fake
+    with MockPlatformInterfaceMixin
+    implements RecordPlatform {
+  @override
+  Future<void> create(String recorderId) async {}
+
+  @override
+  Future<bool> hasPermission(String recorderId) async {
+    return true;
+  }
+
+  @override
+  Future<bool> isPaused(String recorderId) async {
+    return false;
+  }
+
+  @override
+  Future<bool> isRecording(String recorderId) async {
+    return false;
+  }
+
+  @override
+  Future<void> pause(String recorderId) async {}
+
+  @override
+  Future<void> resume(String recorderId) async {}
+
+  @override
+  Future<String?> stop(String recorderId) async {
+    return 'path';
+  }
+
+  @override
+  Future<void> cancel(String recorderId) async {}
+
+  @override
+  Future<void> dispose(String recorderId) async {}
+}

packages/stream_chat_flutter/test/src/message_actions_modal/message_actions_modal_test.dart

@@ -1,18 +1,28 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
+import 'package:record/record.dart';
 import 'package:stream_chat_flutter/src/message_actions_modal/message_actions_modal.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
+import '../fakes.dart';
 import '../mocks.dart';
 
 void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
   setUpAll(() {
     registerFallbackValue(
-        MaterialPageRoute(builder: (context) => const SizedBox()));
+      MaterialPageRoute(builder: (context) => const SizedBox()),
+    );
+
     registerFallbackValue(Message());
   });
 
+  final originalRecordPlatform = RecordPlatform.instance;
+  setUp(() => RecordPlatform.instance = FakeRecordPlatform());
+  tearDown(() => RecordPlatform.instance = originalRecordPlatform);
+
   testWidgets(
     'it should show the all actions',
     (WidgetTester tester) async {

packages/stream_chat_flutter/test/src/message_input/message_input_test.dart

@@ -5,12 +5,18 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
+import 'package:record/record.dart';
 import 'package:stream_chat_flutter/src/message_input/dm_checkbox_list_tile.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
+import '../fakes.dart';
 import '../mocks.dart';
 
 void main() {
+  final originalRecordPlatform = RecordPlatform.instance;
+  setUp(() => RecordPlatform.instance = FakeRecordPlatform());
+  tearDown(() => RecordPlatform.instance = originalRecordPlatform);
+
   testWidgets(
     'checks message input features',
     (WidgetTester tester) async {