cpd/test/widget_testing/homepage_test.dart

import 'package:cpd/pages/homepage.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:cpd/database/db.dart';
import 'package:sqflite_common_ffi/sqflite_ffi.dart';

void main() {
  setUpAll(() {
    sqfliteFfiInit();
    databaseFactory = databaseFactoryFfi;
  });

  testWidgets('MyHomePage displays correctly', (WidgetTester tester) async {
    final mockHabitDatabase = HabitDatabase();

    await tester.pumpWidget(MaterialApp(
      home: MyHomePage(database: mockHabitDatabase, title: 'homepage'),
    ));

    expect(find.text('step by step, day by day'), findsOneWidget);
    expect(find.text('Keep Going!'), findsOneWidget);
    expect(find.byType(FloatingActionButton), findsOneWidget);

    await tester.tap(find.byType(FloatingActionButton));
    await tester.pumpAndSettle();

    //schließt das addhabit-dialog, da es schon in addhabit-popup.dart getestet wurde
    await tester.tap(find.byType(IconButton));
    await tester.pumpAndSettle();
  });
}