import 'package:flutter/material.dart'; import 'package:flutter_test/flutter_test.dart'; import 'package:provider/provider.dart'; import 'package:smoke_cess_app/providers/input_provider.dart'; import 'package:smoke_cess_app/widgets/drop_down.dart'; void main() { testWidgets('DropDown should display items and update input model', (WidgetTester tester) async { // Define the list of items final items = ['Item 1', 'Item 2', 'Item 3']; // Create an instance of the InputProvider and add it to the widget tree final inputProvider = InputProvider(); await tester.pumpWidget( MultiProvider( providers: [ ChangeNotifierProvider.value(value: inputProvider), ], child: MaterialApp( home: Scaffold( body: DropDown(items), ), ), ), ); // Verify that the DropDown displays the first item expect(find.text(items[0]), findsOneWidget); // Tap the DropDown to open the menu await tester.tap(find.byType(DropdownButtonFormField)); await tester.pump(); // Verify that the menu displays the correct items for (final item in items) { expect(find.text(item), findsOneWidget); } // Select the second item await tester.tap(find.text(items[1])); await tester.pump(); // Verify that the input model was updated with the selected item expect(inputProvider.relapseCategory, equals(items[1])); }); }