changes

test/view_models/auth_view_model_logout_test.dart

@@ -0,0 +1,84 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tm_app/core/utils/result.dart';
+import 'package:tm_app/view_models/auth_view_model.dart';
+
+import '../fixtures/test_fixtures.dart';
+import '../mocks/mock_auth_repository.dart';
+
+void main() {
+  group('AuthViewModel Logout', () {
+    late MockAuthRepository mockRepository;
+    late AuthViewModel authViewModel;
+
+    setUp(() {
+      mockRepository = MockAuthRepository();
+      authViewModel = AuthViewModel(authRepository: mockRepository);
+    });
+
+    tearDown(() {
+      authViewModel.dispose();
+    });
+
+    test('should logout successfully', () async {
+      mockRepository.setLogoutResult(
+        const Result.ok(TestFixtures.logoutResponse),
+      );
+
+      // Set a logged in user first
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'testpass';
+      mockRepository.setLoginResult(
+        const Result.ok(TestFixtures.loginResponse),
+      );
+      await authViewModel.login();
+
+      await authViewModel.logout();
+
+      expect(authViewModel.loggedInUser, null);
+      expect(authViewModel.errorMessage, null); // Cleared after notify
+    });
+
+    test('should handle logout error', () async {
+      const errorMessage = 'Logout failed';
+      mockRepository.setLogoutResult(Result.error(Exception(errorMessage)));
+
+      await authViewModel.logout();
+
+      expect(authViewModel.errorMessage, null); // Cleared after notify
+    });
+
+    test('should perform local logout', () async {
+      mockRepository.setLogoutResult(
+        const Result.ok(TestFixtures.logoutResponse),
+      );
+
+      // Set a logged in user first
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'testpass';
+      mockRepository.setLoginResult(
+        const Result.ok(TestFixtures.loginResponse),
+      );
+      await authViewModel.login();
+
+      await authViewModel.logout();
+
+      expect(authViewModel.loggedInUser, null);
+    });
+
+    test('should clear error message before logout', () async {
+      mockRepository.setLogoutResult(
+        const Result.ok(TestFixtures.logoutResponse),
+      );
+
+      // Set an error first
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'wrongpass';
+      mockRepository.setLoginResult(Result.error(Exception('Login failed')));
+      await authViewModel.login();
+
+      await authViewModel.logout();
+
+      expect(authViewModel.errorMessage, null);
+    });
+  });
+}