TF-3826 Try guessing webfinger when dns look up fail

test/features/login/domain/model/oidc_guessing_origin_test.dart

@@ -0,0 +1,42 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tmail_ui_user/features/login/domain/model/oidc_guessing_origin.dart';
+
+void main() {
+  group('OidcGuessingOrigin enum', () {
+    test('url() returns correct URL for empty origin', () {
+      const email = 'user@example.com';
+      const origin = OidcGuessingOrigin.empty;
+      expect(origin.url(email), 'https://example.com');
+    });
+
+    test('url() returns correct URL for autoDiscover origin', () {
+      const email = 'user@example.com';
+      const origin = OidcGuessingOrigin.autoDiscover;
+      expect(origin.url(email), 'https://autodiscover.example.com');
+    });
+
+    test('url() returns correct URL for jmap origin', () {
+      const email = 'user@example.com';
+      const origin = OidcGuessingOrigin.jmap;
+      expect(origin.url(email), 'https://jmap.example.com');
+    });
+
+    test('url() throws error for invalid email', () {
+      const email = 'invalid_email@@example.com';
+      const origin = OidcGuessingOrigin.empty;
+      expect(() => origin.url(email), throwsArgumentError);
+    });
+    
+    test('url() returns correct URL for jmap origin with quoted local part', () {
+      const email = '"user"@example.com';
+      const origin = OidcGuessingOrigin.jmap;
+      expect(origin.url(email), 'https://jmap.example.com');
+    });
+    
+    test('url() returns correct URL for jmap origin with quoted local part containing @', () {
+      const email = '"user@local"@example.com';
+      const origin = OidcGuessingOrigin.jmap;
+      expect(origin.url(email), 'https://jmap.example.com');
+    });
+  });
+}

test/features/login/domain/usecases/try_guessing_web_finger_interactor_test.dart

@@ -0,0 +1,123 @@
+import 'dart:async';
+import 'package:dartz/dartz.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
+import 'package:tmail_ui_user/features/login/domain/repository/authentication_oidc_repository.dart';
+import 'package:tmail_ui_user/features/login/domain/usecases/try_guessing_web_finger_interactor.dart';
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:model/oidc/request/oidc_request.dart';
+import 'package:model/oidc/response/oidc_response.dart';
+import 'package:tmail_ui_user/features/login/domain/state/try_guessing_web_finger_state.dart';
+
+@GenerateMocks([AuthenticationOIDCRepository])
+import 'try_guessing_web_finger_interactor_test.mocks.dart';
+
+void main() {
+  late MockAuthenticationOIDCRepository mockRepository;
+  late TryGuessingWebFingerInteractor interactor;
+
+  final oidcRequest1 = OIDCRequest(
+    baseUrl: 'https://example1.com',
+    resourceUrl: 'https://example1.com/.well-known/openid-configuration'
+  );
+  final oidcRequest2 = OIDCRequest(
+    baseUrl: 'https://example2.com', 
+    resourceUrl: 'https://example2.com/.well-known/openid-configuration'
+  );
+  final successResponse = OIDCResponse('subject', []);
+
+  setUp(() {
+    mockRepository = MockAuthenticationOIDCRepository();
+    interactor = TryGuessingWebFingerInteractor(mockRepository);
+  });
+
+  test('should return first successful response immediately', () async {
+    // Arrange
+    final completer1 = Completer<OIDCResponse>();
+    final completer2 = Completer<OIDCResponse>();
+    
+    when(mockRepository.checkOIDCIsAvailable(oidcRequest1))
+      .thenAnswer((_) => completer1.future);
+    when(mockRepository.checkOIDCIsAvailable(oidcRequest2))
+      .thenAnswer((_) => completer2.future);
+
+    // Act
+    final stream = interactor.execute([oidcRequest1, oidcRequest2]);
+    final futureResults = stream.toList();
+    
+    completer1.complete(successResponse);
+    await Future.delayed(Duration.zero); // Allow stream to process
+    
+    // Assert
+    final results = await futureResults;
+    expect(results, [
+      Right(TryingGuessingWebFinger()),
+      Right(TryGuessingWebFingerSuccess(successResponse)),
+    ]);
+    
+    verifyInOrder([
+      mockRepository.checkOIDCIsAvailable(oidcRequest1),
+      mockRepository.checkOIDCIsAvailable(oidcRequest2),
+    ]);
+    
+    // Verify second request was made but not completed
+    expect(completer2.isCompleted, isFalse);
+  });
+
+  test('should return failure when all responses are null', () async {
+    // Arrange
+    when(mockRepository.checkOIDCIsAvailable(any))
+      .thenAnswer((_) async => throw Exception());
+
+    // Act
+    final results = await interactor.execute([oidcRequest1, oidcRequest2]).toList();
+
+    // Assert
+    expect(results[0], Right(TryingGuessingWebFinger()));
+    expect(results[1], isA<Left<Failure, Success>>());
+    expect((results[1] as Left<Failure, Success>).value, isA<TryGuessingWebFingerFailure>());
+  });
+
+  test('should handle async response order correctly', () async {
+    // Arrange
+  final completer1 = Completer<OIDCResponse>();
+  final completer2 = Completer<OIDCResponse>();
+    
+    when(mockRepository.checkOIDCIsAvailable(oidcRequest1))
+      .thenAnswer((_) => completer1.future);
+    when(mockRepository.checkOIDCIsAvailable(oidcRequest2))
+      .thenAnswer((_) => completer2.future);
+
+    // Act
+    final stream = interactor.execute([oidcRequest1, oidcRequest2]);
+    final futureResults = stream.toList();
+    
+    completer2.complete(successResponse);
+    await Future.delayed(Duration.zero);
+    completer1.completeError(Exception('Timeout'));
+    
+    final results = await futureResults;
+
+    // Assert
+    expect(results, [
+      Right(TryingGuessingWebFinger()),
+      Right(TryGuessingWebFingerSuccess(successResponse)),
+    ]);
+  });
+
+  test('should handle exceptions properly', () async {
+    // Arrange
+    when(mockRepository.checkOIDCIsAvailable(any))
+      .thenAnswer((_) => Future<OIDCResponse>.error(Exception('Test error')));
+
+    // Act
+    final results = await interactor.execute([oidcRequest1]).toList();
+
+    // Assert
+    expect(results[0], Right(TryingGuessingWebFinger()));
+    expect(results[1], isA<Left<Failure, Success>>());
+    expect((results[1] as Left<Failure, Success>).value, isA<TryGuessingWebFingerFailure>());
+  });
+}

test/features/login/presentation/login_controller_test.dart

@@ -34,6 +34,7 @@ import 'package:tmail_ui_user/features/login/domain/usecases/get_stored_oidc_con
 import 'package:tmail_ui_user/features/login/domain/usecases/get_token_oidc_interactor.dart';
 import 'package:tmail_ui_user/features/login/domain/usecases/save_login_url_on_mobile_interactor.dart';
 import 'package:tmail_ui_user/features/login/domain/usecases/save_login_username_on_mobile_interactor.dart';
+import 'package:tmail_ui_user/features/login/domain/usecases/try_guessing_web_finger_interactor.dart';
 import 'package:tmail_ui_user/features/login/domain/usecases/update_account_cache_interactor.dart';
 import 'package:tmail_ui_user/features/login/presentation/extensions/handle_openid_configuration.dart';
 import 'package:tmail_ui_user/features/login/presentation/login_controller.dart';
@@ -71,6 +72,7 @@ import 'login_controller_test.mocks.dart';
   MockSpec<GetAllRecentLoginUsernameOnMobileInteractor>(),
   MockSpec<DNSLookupToGetJmapUrlInteractor>(),
   MockSpec<SignInTwakeWorkplaceInteractor>(),
+  MockSpec<TryGuessingWebFingerInteractor>(),
   MockSpec<GetSessionInteractor>(),
   MockSpec<GetAuthenticatedAccountInteractor>(),
   MockSpec<UpdateAccountCacheInteractor>(),
@@ -94,6 +96,7 @@ void main() {
   late MockGetAllRecentLoginUsernameOnMobileInteractor mockGetAllRecentLoginUsernameOnMobileInteractor;
   late MockDNSLookupToGetJmapUrlInteractor mockDNSLookupToGetJmapUrlInteractor;
   late MockSignInTwakeWorkplaceInteractor mockSignInTwakeWorkplaceInteractor;
+  late MockTryGuessingWebFingerInteractor mockTryGuessingWebFingerInteractor;
   late MockGetSessionInteractor mockGetSessionInteractor;
   late MockGetAuthenticatedAccountInteractor mockGetAuthenticatedAccountInteractor;
   late MockUpdateAccountCacheInteractor mockUpdateAccountCacheInteractor;
@@ -128,6 +131,7 @@ void main() {
     mockGetAllRecentLoginUsernameOnMobileInteractor = MockGetAllRecentLoginUsernameOnMobileInteractor();
     mockDNSLookupToGetJmapUrlInteractor = MockDNSLookupToGetJmapUrlInteractor();
     mockSignInTwakeWorkplaceInteractor = MockSignInTwakeWorkplaceInteractor();
+    mockTryGuessingWebFingerInteractor = MockTryGuessingWebFingerInteractor();
 
     // mock reloadable controller
     mockGetSessionInteractor = MockGetSessionInteractor();
@@ -191,6 +195,7 @@ void main() {
       mockGetAllRecentLoginUsernameOnMobileInteractor,
       mockDNSLookupToGetJmapUrlInteractor,
       mockSignInTwakeWorkplaceInteractor,
+      mockTryGuessingWebFingerInteractor,
     );
   });