Add test coverage for Replies

Author: AliAbdelfattah

lib/Replies.dart

@@ -1,9 +1,9 @@
 // ignore_for_file: avoid_classes_with_only_static_members
 
 import 'dart:async';
-import 'dart:io' show Platform;
 
 import 'package:flutter/services.dart';
+import 'package:instabug_flutter/utils/platform_manager.dart';
 
 class Replies {
   static Function? _hasChatsCallback;
@@ -78,7 +78,7 @@ class Replies {
   /// [isEnabled] A boolean to set whether notifications sound should be played.
   /// @android ONLY
   static Future<void> setInAppNotificationSound(bool isEnabled) async {
-    if (Platform.isAndroid) {
+    if (PlatformManager.instance.isAndroid()) {
       final List<dynamic> params = <dynamic>[isEnabled];
       await _channel.invokeMethod<Object>(
           'setEnableInAppNotificationSound:', params);

test/instabug_flutter_test.dart

@@ -770,6 +770,21 @@ void main() {
     ]);
   });
 
+  test('setInAppNotificationSound: Test', () async {
+    const isEnabled = false;
+    final List<dynamic> args = <dynamic>[isEnabled];
+
+    when(mockPlatform.isAndroid()).thenAnswer((_) => true);
+
+    Replies.setInAppNotificationSound(isEnabled);
+    expect(log, <Matcher>[
+      isMethodCall(
+        'setEnableInAppNotificationSound:',
+        arguments: args,
+      )
+    ]);
+  });
+
   test('showReplies Test', () async {
     Replies.show();
     expect(log, <Matcher>[isMethodCall('showReplies', arguments: null)]);
@@ -844,17 +859,4 @@ void main() {
       ]);
     }
   });
-
-  ///Since the below method only runs on android and has the [Platform.isAndroid] condition in it, it will fail when running outside android,
-  /// therefore its commented.
-  // test('setEnableInAppNotificationSound: Test', () async {
-  //   bool isEnabled = false;
-  //   final List<dynamic> args = <dynamic>[isEnabled];
-  //   Replies.setInAppNotificationSound(isEnabled);
-  //   expect(log, <Matcher>[
-  //     isMethodCall('setEnableInAppNotificationSound:',
-  //       arguments: args,
-  //     )
-  //   ]);
-  // });
 }