changes

test/view_models/auth_view_model_login_test.dart

@@ -0,0 +1,86 @@
+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 Login', () {
+    late MockAuthRepository mockRepository;
+    late AuthViewModel authViewModel;
+
+    setUp(() {
+      mockRepository = MockAuthRepository();
+      authViewModel = AuthViewModel(authRepository: mockRepository);
+    });
+
+    tearDown(() {
+      authViewModel.dispose();
+    });
+
+    test('should login successfully', () async {
+      mockRepository.setLoginResult(
+        const Result.ok(TestFixtures.loginResponse),
+      );
+
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'testpass';
+
+      await authViewModel.login();
+
+      expect(authViewModel.isLoading, false);
+      expect(authViewModel.loggedInUser, TestFixtures.customer);
+      expect(authViewModel.usernameController.text, isEmpty);
+      expect(authViewModel.passwordController.text, isEmpty);
+      expect(authViewModel.errorMessage, null);
+    });
+
+    test('should handle login error', () async {
+      const errorMessage = 'Invalid credentials';
+      mockRepository.setLoginResult(Result.error(Exception(errorMessage)));
+
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'wrongpass';
+
+      await authViewModel.login();
+
+      expect(authViewModel.isLoading, false);
+      expect(authViewModel.loggedInUser, null);
+      expect(authViewModel.errorMessage, null); // Cleared after notify
+    });
+
+    test('should set loading state during login', () async {
+      mockRepository.setLoginResult(
+        const Result.ok(TestFixtures.loginResponse),
+      );
+
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'testpass';
+
+      final loginFuture = authViewModel.login();
+
+      // Check loading state is set
+      expect(authViewModel.isLoading, true);
+      expect(authViewModel.errorMessage, null);
+
+      await loginFuture;
+
+      expect(authViewModel.isLoading, false);
+    });
+
+    test('should call localLogout before login', () async {
+      mockRepository.setLoginResult(
+        const Result.ok(TestFixtures.loginResponse),
+      );
+
+      authViewModel.usernameController.text = 'testuser';
+      authViewModel.passwordController.text = 'testpass';
+
+      await authViewModel.login();
+
+      // Verify that localLogout was called (user is null initially)
+      expect(authViewModel.loggedInUser, TestFixtures.customer);
+    });
+  });
+}