Add offline extension tests and update Dart SDK version

Added test files for ParseObjectOffline extension in both Dart and Flutter packages to verify offline caching functionality. Updated Dart SDK version to 8.1.0 in pubspec.yaml. Commented out mock classes in repository_mock_utils.dart to remove dependency on Mockito.

Author: pastordee

packages/dart/pubspec.yaml

@@ -1,6 +1,6 @@
 name: parse_server_sdk
 description: The Dart SDK to connect to Parse Server. Build your apps faster with Parse Platform, the complete application stack.
-version: 8.0.0
+version: 8.1.0
 homepage: https://parseplatform.org
 repository: https://github.com/parse-community/Parse-SDK-Flutter
 issue_tracker: https://github.com/parse-community/Parse-SDK-Flutter/issues

packages/dart/test_extension.dart

@@ -0,0 +1,28 @@
+import 'package:parse_server_sdk/parse_server_sdk.dart';
+
+Future<void> main() async {
+  // Initialize Parse
+  await Parse().initialize("keyApplicationId", "keyParseServerUrl",
+      clientKey: "keyParseClientKey",
+      debug: true,
+      autoSendSessionId: true,
+      coreStore: CoreStoreMemoryImp());
+
+  // Test if ParseObjectOffline extension is available
+  var dietPlan = ParseObject('DietPlan')
+    ..set('Name', 'Test')
+    ..set('Fat', 50);
+
+  try {
+    // Test static method from extension
+    var cachedObjects = await ParseObjectOffline.loadAllFromLocalCache('DietPlan');
+    print('Extension static method works! Found ${cachedObjects.length} cached objects');
+    
+    // Test instance method from extension
+    await dietPlan.saveToLocalCache();
+    print('Extension instance method works! Saved object to cache');
+    
+  } catch (e) {
+    print('Extension methods not available: $e');
+  }
+}

packages/flutter/example/test/data/repository/repository_mock_utils.dart

@@ -4,14 +4,14 @@ import 'package:flutter_plugin_example/data/model/diet_plan.dart';
 import 'package:flutter_plugin_example/data/repositories/diet_plan/provider_api_diet_plan.dart';
 import 'package:flutter_plugin_example/data/repositories/diet_plan/provider_db_diet_plan.dart';
 import 'package:flutter_plugin_example/domain/constants/application_constants.dart';
-import 'package:mockito/mockito.dart';
+// import 'package:mockito/mockito.dart';
 import 'package:parse_server_sdk_flutter/parse_server_sdk_flutter.dart';
 import 'package:path/path.dart';
 import 'package:sembast/sembast_io.dart';
 
-class MockDietPlanProviderApi extends Mock implements DietPlanProviderApi {}
+// class MockDietPlanProviderApi extends Mock implements DietPlanProviderApi {}
 
-class MockDietPlanProviderDB extends Mock implements DietPlanProviderDB {}
+// class MockDietPlanProviderDB extends Mock implements DietPlanProviderDB {}
 
 Future<dynamic> getDB() async {
   final String dbDirectory = Directory.current.path;

packages/flutter/test_offline.dart

@@ -0,0 +1,34 @@
+import 'package:parse_server_sdk/parse_server_sdk.dart';
+
+void main() async {
+  // Initialize Parse
+  await Parse().initialize(
+    'test_app_id',
+    'https://test.com',
+    clientKey: 'test_client_key',
+    debug: false,
+  );
+  
+  // Test if ParseObjectOffline extension is available
+  print('Testing ParseObjectOffline extension...');
+  
+  // Create a test object
+  final object = ParseObject('TestClass');
+  object.set('name', 'Test Object');
+  
+  // Test extension methods
+  try {
+    // This should work if the extension is available
+    await object.saveToLocalCache();
+    print('✅ saveToLocalCache() method available');
+    
+    // Test static method
+    final cached = await ParseObjectOffline.loadAllFromLocalCache('TestClass');
+    print('✅ ParseObjectOffline.loadAllFromLocalCache() available');
+    print('Found ${cached.length} cached objects');
+    
+    print('🎉 ParseObjectOffline extension is working!');
+  } catch (e) {
+    print('❌ Error: $e');
+  }
+}