TF-3349 Add integration test for forward email

integration_test/robots/email_robot.dart

@@ -0,0 +1,12 @@
+import 'package:flutter_test/flutter_test.dart';
+
+import '../base/core_robot.dart';
+
+class EmailRobot extends CoreRobot {
+  EmailRobot(super.$);
+
+  Future<void> onTapForwardEmail() async {
+    await $(#forward_email_button).tap();
+    await $.pump(const Duration(seconds: 2));
+  }
+}

integration_test/robots/search_robot.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:core/presentation/views/text/text_field_builder.dart';
 import 'package:tmail_ui_user/features/search/email/presentation/search_email_view.dart';
+import 'package:tmail_ui_user/features/thread/presentation/widgets/email_tile_builder.dart';
 import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
 
 import '../base/core_robot.dart';
@@ -39,4 +40,27 @@ class SearchRobot extends CoreRobot {
     await $.waitUntilVisible($(AppLocalizations().showingResultsFor));
     await $(AppLocalizations().showingResultsFor).tap();
   }
+
+  Future<void> scrollToDateTimeButtonFilter() async {
+    await $.scrollUntilVisible(
+      finder: $(#mobile_dateTime_search_filter_button),
+      view: $(#search_filter_list_view),
+      scrollDirection: AxisDirection.right,
+      delta: 300,
+    );
+  }
+
+  Future<void> openDateTimeBottomDialog() async {
+    await $(#mobile_dateTime_search_filter_button).tap();
+  }
+
+  Future<void> selectDateTime(String dateTimeType) async {
+    await $(find.text(dateTimeType)).tap();
+    await $.pump(const Duration(seconds: 2));
+  }
+
+  Future<void> openEmail(String subject) async {
+    await $(find.byType(EmailTileBuilder)).first.tap();
+    await $.pump(const Duration(seconds: 2));
+  }
 }