TF-4265 Add integration test for attachment reminder on mobile

test/features/composer/presentation/manager/attachment_keyword_config_manager_test.dart

@@ -0,0 +1,94 @@
+import 'package:core/utils/config/app_config_loader.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
+import 'package:tmail_ui_user/features/composer/presentation/manager/attachment_keyword_config_manager.dart';
+import 'package:tmail_ui_user/features/composer/presentation/manager/attachment_keywords_configuration_parser.dart';
+import 'package:tmail_ui_user/features/composer/presentation/model/attachment_keyword_config.dart';
+
+import 'attachment_keyword_config_manager_test.mocks.dart';
+
+@GenerateMocks([AppConfigLoader])
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  late AttachmentKeywordConfigManager manager;
+  late MockAppConfigLoader mockLoader;
+
+  setUp(() {
+    manager = AttachmentKeywordConfigManager();
+    manager.clearCache();
+    mockLoader = MockAppConfigLoader();
+    manager.injectLoader(mockLoader);
+  });
+
+  group('AttachmentKeywordConfigManager.getConfig', () {
+    test('returns config loaded from loader on first call', () async {
+      final config = AttachmentKeywordConfig(
+        includeList: ['invoice'],
+        excludeList: ['invoice-draft'],
+      );
+
+      when(mockLoader.load<AttachmentKeywordConfig>(
+        any,
+        any,
+      )).thenAnswer((_) async => config);
+
+      final result = await manager.getConfig();
+
+      expect(result.includeList, equals(['invoice']));
+      expect(result.excludeList, equals(['invoice-draft']));
+    });
+
+    test('returns cached result on second call without calling loader again', () async {
+      final config = AttachmentKeywordConfig(includeList: ['invoice']);
+
+      when(mockLoader.load<AttachmentKeywordConfig>(any, any))
+          .thenAnswer((_) async => config);
+
+      await manager.getConfig();
+      await manager.getConfig();
+
+      verify(mockLoader.load<AttachmentKeywordConfig>(
+        any,
+        argThat(isA<AttachmentKeywordsConfigurationParser>()),
+      )).called(1);
+    });
+
+    test('returns empty AttachmentKeywordConfig when loader throws', () async {
+      when(mockLoader.load<AttachmentKeywordConfig>(any, any))
+          .thenThrow(Exception('file not found'));
+
+      final result = await manager.getConfig();
+
+      expect(result.includeList, isEmpty);
+      expect(result.excludeList, isEmpty);
+    });
+
+    test('caches the empty fallback config on error (loader not called again)', () async {
+      when(mockLoader.load<AttachmentKeywordConfig>(any, any))
+          .thenThrow(Exception('file not found'));
+
+      await manager.getConfig();
+      await manager.getConfig();
+
+      verify(mockLoader.load<AttachmentKeywordConfig>(any, any)).called(1);
+    });
+  });
+
+  group('AttachmentKeywordConfigManager.clearCache', () {
+    test('clearCache forces re-load on next getConfig call', () async {
+      final config = AttachmentKeywordConfig(includeList: ['invoice']);
+
+      when(mockLoader.load<AttachmentKeywordConfig>(any, any))
+          .thenAnswer((_) async => config);
+
+      await manager.getConfig();
+      manager.clearCache();
+      manager.injectLoader(mockLoader);
+      await manager.getConfig();
+
+      verify(mockLoader.load<AttachmentKeywordConfig>(any, any)).called(2);
+    });
+  });
+}

test/features/composer/presentation/manager/exclude_list_filter_test.dart

@@ -0,0 +1,61 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tmail_ui_user/features/composer/presentation/manager/exclude_list_filter.dart';
+
+/// Helper: simulate a regex [Match] at [start]..[end] within [text].
+Match _fakeMatch(String text, int start, int end) {
+  final regex = RegExp(RegExp.escape(text.substring(start, end)));
+  return regex.allMatches(text).firstWhere((m) => m.start == start);
+}
+
+void main() {
+  group('ExcludeListFilter.isValid', () {
+    test('returns true when excludeList is empty', () {
+      final filter = ExcludeListFilter([]);
+      const text ='See the file attached.';
+      final match = _fakeMatch(text, 8, 12); // "file"
+      expect(filter.isValid(text, match), isTrue);
+    });
+
+    test('blocks token that exactly matches an exclude entry', () {
+      final filter = ExcludeListFilter(['file-246']);
+      const text ='Please find file-246 here.';
+      final match = _fakeMatch(text, 12, 16); // "file"
+      expect(filter.isValid(text, match), isFalse);
+    });
+
+    test('blocks token with trailing punctuation (e.g. "file-246.")', () {
+      final filter = ExcludeListFilter(['file-246']);
+      const text ='Check file-246.';
+      final match = _fakeMatch(text, 6, 10); // "file"
+      expect(filter.isValid(text, match), isFalse);
+    });
+
+    test('blocks token with leading punctuation (e.g. "(file-246")', () {
+      final filter = ExcludeListFilter(['file-246']);
+      const text ='See (file-246 for details.';
+      final match = _fakeMatch(text, 5, 9); // "file"
+      expect(filter.isValid(text, match), isFalse);
+    });
+
+    test('allows token not in the exclude list', () {
+      final filter = ExcludeListFilter(['invoice-draft']);
+      const text ='Please attach the file.';
+      final match = _fakeMatch(text, 18, 22); // "file"
+      expect(filter.isValid(text, match), isTrue);
+    });
+
+    test('matching is case-insensitive', () {
+      final filter = ExcludeListFilter(['File-246']);
+      const text ='See file-246 here.';
+      final match = _fakeMatch(text, 4, 8); // "file"
+      expect(filter.isValid(text, match), isFalse);
+    });
+
+    test('allows a standalone keyword not surrounded by exclude context', () {
+      final filter = ExcludeListFilter(['file-246']);
+      const text ='Please attach the file here.';
+      final match = _fakeMatch(text, 18, 22); // "file"
+      expect(filter.isValid(text, match), isTrue);
+    });
+  });
+}