import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:flutter_test/flutter_test.dart';

Future<void> main() async {
  group('Flutter Perspective in goldens regression', () {
    for (final usePerspective in [false, true]) {
      testWidgets(
        'Simple widget ${usePerspective ? 'under' : 'without'} perspective',
        (widgetTester) async {
          const topLevelKey = Key('top level key');
          await widgetTester.pumpWidget(
            Center(
              child: Container(
                key: topLevelKey,
                color: Colors.red,
                height: 50,
                width: 50,
                child: Transform(
                  transform: Matrix4.identity()
                    ..setEntry(3, 1, usePerspective ? 0.015 : 0),
                  alignment: Alignment.bottomCenter,
                  child: Container(
                    alignment: Alignment.bottomCenter,
                    child: SvgPicture.asset('assets/icons/ic_pound_sign.svg'),
                  ),
                ),
              ),
            ),
          );
          await widgetTester.pump();
          await expectLater(
            find.byKey(topLevelKey),
            matchesGoldenFile(
              'goldens/simple_widget_${usePerspective ? 'under' : 'without'}_perspective.png',
            ),
          );
        },
      );
    }
  });
}