Mock firebase in tests

integration_test/app_test.dart

@@ -1,3 +1,6 @@
+import 'package:eduapge2/firebase_options.dart';
+import 'package:firebase_core/firebase_core.dart';
+import 'package:firebase_remote_config/firebase_remote_config.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -6,6 +9,7 @@ import 'package:integration_test/integration_test.dart';
 import 'package:eduapge2/main.dart' as app;
 import 'package:intl/intl.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 import 'utils.dart';
 
@@ -25,6 +29,8 @@ void main() {
     testWidgets('Test TimeTable page', (tester) async {
       await prep(tester, username, password, name);
 
+      await tester.pump(const Duration(seconds: 1));
+
       await tester.tap(find.byType(NavigationDestination).at(1));
       await tester.pump(const Duration(seconds: 1));
       String day = DateFormat('d', const Locale('en', 'US').toString())
@@ -66,7 +72,20 @@ Future<void> prep(
     WidgetTester tester, String username, String password, String name) async {
   SharedPreferences.setMockInitialValues({});
   final FlutterExceptionHandler? originalOnError = FlutterError.onError;
-  app.main();
+  await Firebase.initializeApp(
+    options: DefaultFirebaseOptions.currentPlatform,
+  );
+  final remoteConfig = FirebaseRemoteConfig.instance;
+  await remoteConfig.setConfigSettings(RemoteConfigSettings(
+    fetchTimeout: const Duration(minutes: 1),
+    minimumFetchInterval: const Duration(hours: 1),
+  ));
+  await remoteConfig.setDefaults(const {
+    "baseUrl": "https://lobster-app-z6jfk.ondigitalocean.app/api",
+    "testUrl": "https://ep2.vypal.me"
+  });
+  await remoteConfig.activate();
+  runApp(const MyTestApp());
   await tester.pumpAndSettle();
   FlutterError.onError = originalOnError;
   await pumpUntilFound(tester, find.text("Username"));
@@ -76,5 +95,35 @@ Future<void> prep(
   await tester.tap(find.byType(ElevatedButton));
 
   await pumpUntilFound(tester, find.text(name));
+  await tester.pumpAndSettle();
   await tester.pump(const Duration(seconds: 1));
 }
+
+class MyTestApp extends StatelessWidget {
+  const MyTestApp({super.key});
+  static final _defaultLightColorScheme =
+      ColorScheme.fromSwatch(primarySwatch: Colors.blue);
+
+  static final _defaultDarkColorScheme = ColorScheme.fromSwatch(
+      primarySwatch: Colors.blue, brightness: Brightness.dark);
+
+  // This widget is the root of your application.
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'EduPage2',
+      localizationsDelegates: AppLocalizations.localizationsDelegates,
+      supportedLocales: AppLocalizations.supportedLocales,
+      theme: ThemeData(
+        colorScheme: _defaultLightColorScheme,
+        useMaterial3: true,
+      ),
+      darkTheme: ThemeData(
+        colorScheme: _defaultDarkColorScheme,
+        useMaterial3: true,
+      ),
+      themeMode: ThemeMode.dark,
+      home: const app.PageBase(),
+    );
+  }
+}