TF-3552 Add integration test for display short content in email view

Signed-off-by: dab246 <tdvu@linagora.com>

integration_test/scenarios/email_detailed/display_email_with_short_content_scenario.dart

@@ -0,0 +1,55 @@
+
+import 'package:core/presentation/views/html_viewer/html_content_viewer_widget.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tmail_ui_user/features/thread/presentation/widgets/email_tile_builder.dart';
+
+import '../../base/base_test_scenario.dart';
+import '../../models/provisioning_email.dart';
+import '../../robots/thread_robot.dart';
+
+class DisplayEmailWithShortContentScenario extends BaseTestScenario {
+
+  const DisplayEmailWithShortContentScenario(super.$);
+
+  static const String subject = 'Email with short content';
+  static const String shortContent = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.';
+
+  @override
+  Future<void> runTestLogic() async {
+    const emailUser = String.fromEnvironment('BASIC_AUTH_EMAIL');
+    final provisioningEmail = ProvisioningEmail(
+      toEmail: emailUser,
+      subject: subject,
+      content: shortContent,
+    );
+
+    await provisionEmail([provisioningEmail], requestReadReceipt: false);
+    await $.pumpAndSettle(duration: const Duration(seconds: 3));
+
+    await _expectDisplayedEmailWithSubject();
+
+    final threadRobot = ThreadRobot($);
+    await threadRobot.openEmailWithSubject(subject);
+    await $.pumpAndSettle(duration: const Duration(seconds: 3));
+
+    await _expectEmailViewWithShortContent();
+  }
+
+  Future<void> _expectDisplayedEmailWithSubject() async {
+    await expectViewVisible(
+      $(EmailTileBuilder)
+        .which<EmailTileBuilder>(
+          (widget) => widget.presentationEmail.subject == subject
+        ),
+    );
+  }
+
+  Future<void> _expectEmailViewWithShortContent() async {
+    expect(
+      $(HtmlContentViewer).which<HtmlContentViewer>((view) {
+        return view.contentHtml.contains(shortContent);
+      }),
+      findsOneWidget,
+    );
+  }
+}

integration_test/tests/email_detailed/display_email_with_short_content_test.dart

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+import '../../base/test_base.dart';
+import '../../scenarios/email_detailed/display_email_with_short_content_scenario.dart';
+
+void main() {
+  TestBase().runPatrolTest(
+    description: 'Should display full content when opening a short email',
+    scenarioBuilder: ($) => DisplayEmailWithShortContentScenario($),
+  );
+}