fix: comprehensive test suite improvements and fixes

test/examples/new_sell_order.json

@@ -0,0 +1,17 @@
+{
+  "order": {
+    "payload": {
+      "order": {
+        "kind": "sell",
+        "status": "pending",
+        "amount": 0,
+        "fiat_code": "VES",
+        "fiat_amount": 100,
+        "payment_method": "face to face",
+        "premium": 1,
+        "created_at": 1640995200,
+        "expires_at": 1640995200
+      }
+    }
+  }
+}

test/mocks.dart

@@ -1,7 +1,70 @@
+import 'package:dart_nostr/dart_nostr.dart';
 import 'package:mockito/annotations.dart';
+import 'package:mostro_mobile/data/models/session.dart';
+import 'package:mostro_mobile/data/models/enums/role.dart';
 import 'package:mostro_mobile/data/repositories/open_orders_repository.dart';
+import 'package:mostro_mobile/data/repositories/session_storage.dart';
+import 'package:mostro_mobile/data/repositories/mostro_storage.dart';
+import 'package:mostro_mobile/features/key_manager/key_manager.dart';
+import 'package:mostro_mobile/features/settings/settings.dart';
+import 'package:mostro_mobile/features/settings/settings_notifier.dart';
 import 'package:mostro_mobile/services/mostro_service.dart';
+import 'package:mostro_mobile/shared/notifiers/session_notifier.dart';
+import 'package:sembast/sembast.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
-@GenerateMocks([MostroService, OpenOrdersRepository, SharedPreferencesAsync])
+import 'mocks.mocks.dart';
+
+@GenerateMocks([
+  MostroService,
+  OpenOrdersRepository,
+  SharedPreferencesAsync,
+  Database,
+  SessionStorage,
+  KeyManager,
+  MostroStorage,
+])
+
+// Custom mock for SettingsNotifier that returns a specific Settings object
+class MockSettingsNotifier extends SettingsNotifier {
+  final Settings _testSettings;
+
+  MockSettingsNotifier(this._testSettings, MockSharedPreferencesAsync prefs)
+      : super(prefs) {
+    state = _testSettings;
+  }
+}
+
+// Custom mock for SessionNotifier that avoids database dependencies
+class MockSessionNotifier extends SessionNotifier {
+  MockSessionNotifier(MockKeyManager super.keyManager,
+      MockSessionStorage super.sessionStorage, super.settings);
+
+  @override
+  Session? getSessionByOrderId(String orderId) => null;
+
+  @override
+  List<Session> get sessions => [];
+
+  @override
+  Future<Session> newSession(
+      {String? orderId, int? requestId, Role? role}) async {
+    final mockSession = Session(
+      // Dummy private keys for testing purposes only
+      masterKey: NostrKeyPairs(
+          private:
+              '1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef'),
+      tradeKey: NostrKeyPairs(
+          private:
+              'abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890'),
+      keyIndex: 0,
+      fullPrivacy: false,
+      startTime: DateTime.now(),
+    );
+    mockSession.orderId = orderId;
+    mockSession.role = role;
+    return mockSession;
+  }
+}
+
 void main() {}