TF-3558 E2E Mailbox pull to refresh

integration_test/robots/thread_robot.dart

@@ -67,4 +67,14 @@ class ThreadRobot extends CoreRobot {
   Future<void> selectStarredFilter() async {
     await $(#starred_filter).tap();
   }
+
+  Future<void> pullToRefreshByEmailSubject(String subject) async {
+    await $(subject).waitUntilVisible();
+    await $.tester.fling(
+      $(subject),
+      const Offset(0, 300),
+      1000,
+    );
+    await $.pumpAndSettle();
+  }
 }

integration_test/scenarios/mailbox/pull_to_refresh_scenario.dart

@@ -0,0 +1,50 @@
+import 'package:flutter_test/flutter_test.dart';
+
+import '../../base/base_test_scenario.dart';
+import '../../models/provisioning_email.dart';
+import '../../robots/thread_robot.dart';
+
+class PullToRefreshScenario extends BaseTestScenario {
+  const PullToRefreshScenario(super.$);
+
+  @override
+  Future<void> runTestLogic() async {
+    const toEmail = String.fromEnvironment('BASIC_AUTH_EMAIL');
+    const visibleBeforePullToRefresh = 'before pull to refresh';
+    const visibleAfterPullToRefresh = 'after pull to refresh';
+
+    final threadRobot = ThreadRobot($);
+
+    await provisionEmail(
+      [ProvisioningEmail(
+        toEmail: toEmail,
+        subject: visibleBeforePullToRefresh,
+        content: '',
+      )],
+    );
+    await $.pumpAndSettle();
+    _expectEmailWithSubjectVisible(visibleBeforePullToRefresh);
+
+    await provisionEmail(
+      [ProvisioningEmail(
+        toEmail: toEmail,
+        subject: visibleAfterPullToRefresh,
+        content: '',
+      )],
+      refreshEmailView: false,
+    );
+    await $.pumpAndSettle();
+    _expectEmailWithSubjectInvisible(visibleAfterPullToRefresh);
+
+    await threadRobot.pullToRefreshByEmailSubject(visibleBeforePullToRefresh);
+    _expectEmailWithSubjectVisible(visibleAfterPullToRefresh);
+  }
+
+  _expectEmailWithSubjectVisible(String subject) {
+    expect($(subject), findsOneWidget);
+  }
+
+  _expectEmailWithSubjectInvisible(String subject) {
+    expect($(subject), findsNothing);
+  }
+}

integration_test/tests/mailbox/pull_to_refresh_test.dart

@@ -0,0 +1,9 @@
+import '../../base/test_base.dart';
+import '../../scenarios/mailbox/pull_to_refresh_scenario.dart';
+
+void main() {
+  TestBase().runPatrolTest(
+    description: 'Should refresh email list when pull to refresh',
+    scenarioBuilder: ($) => PullToRefreshScenario($),
+  );
+}