import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mobile_scanner/mobile_scanner.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:smoke_cess_app/providers/settings_provider.dart';
import 'package:smoke_cess_app/widgets/buttons/text_icon_button.dart';
import 'package:smoke_cess_app/widgets/scanner.dart';

import '../mock/settings_mock.dart';

void main() {
  mockSharedPreferences();

  group('MyScanner', () {
    testWidgets('Scanner should start after Button is pressed',
        (widgetTester) async {
      SettingsProvider settingsProvider = SettingsProvider();
      expect(settingsProvider.scanning, false);

      await widgetTester.pumpWidget(MaterialApp(
        home: Column(
          children: [
            ChangeNotifierProvider(
                create: (context) => settingsProvider, child: const MyScanner())
          ],
        ),
      ));

      final startScannerButton = find.byType(TextIconButton);
      final scanner = find.byType(MobileScanner);
      expect(startScannerButton, findsOneWidget);
      expect(scanner, findsNothing);

      await widgetTester.tap(startScannerButton);
      await widgetTester.pump();
      expect(startScannerButton, findsNothing);
      expect(scanner, findsOneWidget);
      expect(settingsProvider.scanning, true);
    });
  });
}