refactor: app initialization logic in tests

catalyst_voices/integration_test/app_test.dart

@@ -1,6 +1,6 @@
+import 'package:catalyst_voices/app/view/app.dart';
 import 'package:catalyst_voices/configs/bootstrap.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:catalyst_voices/app/app.dart';
 import 'package:integration_test/integration_test.dart';
 
 void main() {
@@ -10,9 +10,8 @@ void main() {
     testWidgets('tap on the floating action button, verify counter',
         (tester) async {
       final args = await bootstrapTest();
-      // Load app widget.
       await tester.pumpWidget(App(routerConfig: args.routerConfig));
-      await Future<void>.delayed(Duration(seconds: 5));
+      await tester.pumpAndSettle(Duration(seconds: 15));
     });
   });
 }

catalyst_voices/lib/configs/bootstrap.dart

@@ -63,20 +63,6 @@ Future<void> bootstrap([
 }
 
 Future<BootstrapArgs> bootstrapTest() async {
-  // There's no need to call WidgetsFlutterBinding.ensureInitialized()
-  // since this is already done internally by SentryFlutter.init()
-  // More info here: https://github.com/getsentry/sentry-dart/issues/2063
-  if (!kReleaseMode) {
-    WidgetsFlutterBinding.ensureInitialized();
-  }
-
-  FlutterError.onError = (details) {
-    log(
-      details.exceptionAsString(),
-      stackTrace: details.stack,
-    );
-  };
-
   GoRouter.optionURLReflectsImperativeAPIs = true;
   setPathUrlStrategy();
 
@@ -90,9 +76,7 @@ Future<BootstrapArgs> bootstrapTest() async {
 
   await Dependencies.instance.init();
 
-  final args = BootstrapArgs(routerConfig: router);
-
-  return args;
+  return BootstrapArgs(routerConfig: router);
 }
 
 Future<void> _runApp(Widget app) async {