import 'dart:io';
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:lottie/lottie.dart';
import 'utils.dart';

void main() {
  var root = 'example/assets';

  testWidgets('Mirror animation', (tester) async {
    var size = const Size(500, 400);
    tester.view.physicalSize = size;
    tester.view.devicePixelRatio = 1.0;

    var composition = (await tester.runAsync(
      () => FileLottie(File('$root/Tests/MatteTimeStretchScan.json')).load(),
    ))!;
    await tester.pumpWidget(
      FilmStrip(
        composition,
        size: size,
        delegates: LottieDelegates(
          values: [
            ValueDelegate.transformAnchorPoint(
              [],
              value: Offset(composition.bounds.width.toDouble(), 0),
            ),
            ValueDelegate.transformScale([], value: const Offset(-1, 1)),
          ],
        ),
      ),
    );

    await expectLater(
      find.byType(FilmStrip),
      matchesGoldenFile('goldens/mirror.png'),
    );
  });
}