improved validator with additional possible twitter URLs

moved link validator out, and added unit tests

Author: n13

mobile-app/lib/features/components/raid_submission_action_sheet.dart

@@ -13,6 +13,7 @@ import 'package:resonance_network_wallet/features/styles/app_text_theme.dart';
 import 'package:resonance_network_wallet/providers/raider_quest_providers.dart';
 import 'package:resonance_network_wallet/shared/extensions/media_query_data_extension.dart';
 import 'package:resonance_network_wallet/shared/extensions/snackbar_extensions.dart';
+import 'package:resonance_network_wallet/utils/validators.dart';
 
 class RaidSubmissionActionSheet extends ConsumerStatefulWidget {
   const RaidSubmissionActionSheet({super.key});
@@ -46,8 +47,8 @@ class _RaidSubmissionActionSheetState extends ConsumerState<RaidSubmissionAction
     String targetInput = _targetTweetController.text.trim();
     String replyInput = _replyTweetController.text.trim();
 
-    bool targetTweetIsValid = isValidXStatusUrl(targetInput);
-    bool replyTweetIsValid = isValidXStatusUrl(replyInput);
+    bool targetTweetIsValid = Validators.isValidXStatusUrl(targetInput);
+    bool replyTweetIsValid = Validators.isValidXStatusUrl(replyInput);
 
     String errMsg = 'Invalid X status link.';
 
@@ -59,12 +60,6 @@ class _RaidSubmissionActionSheetState extends ConsumerState<RaidSubmissionAction
     });
   }
 
-  bool isValidXStatusUrl(String url) {
-    final regex = RegExp(r'^https?:\/\/(www\.)?x\.com\/[A-Za-z0-9_]{1,15}\/status\/\d{10,25}(\?.*)?$');
-
-    return regex.hasMatch(url);
-  }
-
   void _closeSheet() {
     Navigator.of(context).pop();
   }

mobile-app/lib/utils/validators.dart

@@ -0,0 +1,9 @@
+class Validators {
+  static bool isValidXStatusUrl(String url) {
+    final regex = RegExp(
+      r'^https?:\/\/(www\.|mobile\.)?(x\.com|twitter\.com)\/[A-Za-z0-9_]{1,15}\/status\/\d{10,25}(\?.*)?$',
+    );
+
+    return regex.hasMatch(url);
+  }
+}

mobile-app/test/unit/validators_test.dart

@@ -0,0 +1,40 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:resonance_network_wallet/utils/validators.dart';
+
+void main() {
+  group('Validators', () {
+    test('isValidXStatusUrl should validate correct X and Twitter URLs', () {
+      final validUrls = [
+        'https://x.com/username/status/123456789012345',
+        'https://www.x.com/username/status/123456789012345',
+        'http://x.com/username/status/123456789012345',
+        'https://twitter.com/username/status/123456789012345',
+        'https://mobile.twitter.com/username/status/123456789012345',
+        'https://mobile.x.com/username/status/123456789012345',
+        'https://x.com/username/status/123456789012345?s=20',
+        'https://twitter.com/User_Name/status/1234567890',
+      ];
+
+      for (final url in validUrls) {
+        expect(Validators.isValidXStatusUrl(url), isTrue, reason: 'URL should be valid: $url');
+      }
+    });
+
+    test('isValidXStatusUrl should reject invalid URLs', () {
+      final invalidUrls = [
+        'https://google.com',
+        'https://x.com/username',
+        'https://x.com/status/12345', // Missing username
+        'https://x.com/username/12345', // Missing status
+        'ftp://x.com/username/status/12345', // Invalid protocol
+        'https://other-domain.com/username/status/12345',
+        '',
+        'random text',
+      ];
+
+      for (final url in invalidUrls) {
+        expect(Validators.isValidXStatusUrl(url), isFalse, reason: 'URL should be invalid: $url');
+      }
+    });
+  });
+}