LA-2185 added integration test for login

integration_test/base/base_scenario.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:patrol/patrol.dart';
+
+abstract class BaseScenario {
+  final PatrolIntegrationTester $;
+
+  const BaseScenario(this.$);
+
+  Future<void> execute();
+
+  Future<void> expectViewVisible(PatrolFinder patrolFinder) async {
+    await $.waitUntilVisible(patrolFinder);
+    expect(patrolFinder, findsWidgets);
+  }
+}

integration_test/base/test_base.dart

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+import 'package:fluffychat/di/global/get_it_initializer.dart';
+import 'package:fluffychat/utils/client_manager.dart';
+import 'package:fluffychat/widgets/twake_app.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:go_router/go_router.dart';
+import 'package:hive_flutter/hive_flutter.dart';
+import 'package:media_kit/media_kit.dart';
+import 'package:patrol/patrol.dart';
+
+class TestBase {
+  void runPatrolTest({
+    required String description,
+    required Function(PatrolIntegrationTester $) test,
+  }) {
+    patrolTest(description,
+        config: const PatrolTesterConfig(
+          settlePolicy: SettlePolicy.trySettle,
+          visibleTimeout: Duration(minutes: 1),
+        ),
+        nativeAutomatorConfig: const NativeAutomatorConfig(
+          findTimeout: Duration(seconds: 10),
+        ),
+        framePolicy: LiveTestWidgetsFlutterBindingFramePolicy.fullyLive,
+        ($) async {
+      await initTwakeChat($);
+      final originalOnError = FlutterError.onError!;
+      FlutterError.onError = (FlutterErrorDetails details) {
+        originalOnError(details);
+      };
+      await test($);
+    });
+  }
+
+  Future<void> initTwakeChat(PatrolIntegrationTester $) async {
+    MediaKit.ensureInitialized();
+    GoRouter.optionURLReflectsImperativeAPIs = true;
+    await Hive.initFlutter();
+    GetItInitializer().setUp();
+    final clients = await ClientManager.getClients();
+    final firstClient = clients.firstOrNull;
+    await firstClient?.roomsLoading;
+    await firstClient?.accountDataLoading;
+    await $.pumpWidgetAndSettle(
+      TwakeApp(clients: clients),
+    );
+  }
+}

integration_test/scenarios/login_scenario.dart

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+import 'package:fluffychat/pages/chat_list/chat_list.dart';
+import 'package:fluffychat/pages/homeserver_picker/homeserver_picker_view.dart';
+import 'package:fluffychat/pages/twake_welcome/twake_welcome.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:patrol/patrol.dart';
+import '../base/base_scenario.dart';
+
+class LoginScenario extends BaseScenario {
+  final String username;
+
+  final String serverUrl;
+
+  final String password;
+
+  LoginScenario(
+    super.$, {
+    required this.username,
+    required this.serverUrl,
+    required this.password,
+  });
+  @override
+  Future<void> execute() async {
+    await $.waitUntilVisible($(TwakeWelcome));
+    await expectViewVisible($(TwakeWelcome));
+    await $('Use your company server').tap();
+    await $.waitUntilVisible($(HomeserverPickerView));
+    await $.enterText($(HomeserverTextField), serverUrl);
+    await $.tap($('Continue'));
+
+    await $.native.enterTextByIndex(
+      username,
+      index: 0,
+    );
+    await $.native.enterTextByIndex(
+      password,
+      index: 1,
+    );
+    await $.native.tap(
+      Selector(
+        text: 'Sign in',
+        instance: 1,
+      ),
+    );
+    await expectViewVisible($(ChatList));
+  }
+}

integration_test/tests/login/login_test.dart

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+import '../../base/test_base.dart';
+import '../../scenarios/login_scenario.dart';
+
+void main() {
+  TestBase().runPatrolTest(
+    description:
+        'Should see chat list after successful login',
+    test: ($) async {
+      final loginScenario = LoginScenario(
+        $,
+        username: const String.fromEnvironment('USERNAME'),
+        serverUrl: const String.fromEnvironment('SERVER_URL'),
+        password: const String.fromEnvironment('PASSWORD'),
+      );
+
+      await loginScenario.execute();
+    },
+  );
+}