扑来 - 如何在小部件测试中测试特定的lottie动画

Question

嗨，我有一个Lottiebuilder Wichh通过资产的JSON加载动画。

LottieBuilder.asset(
            'assets/animations/no_wifi_animation.json',
            repeat: true),

我想编写一个测试以确定Bieng的特定JSON动画，所以我写了这样的测试：

testWidgets('NotConnectedScreen LottieBuilder plays the correct Animation',
      (tester) async {
    final lottieBilder =
        LottieBuilder.asset('assets/animations/no_wifi_animation.json');
    await tester.pumpWidget(myApp);
    expect(find.byWidget(lottieBilder), findsOneWidget);
  });

我制作了一个假资产构建器，并将我的家用小部件包裹在它上：

class FakeAssetsBundle extends Fake implements AssetBundle{
  final String animationJson = File('assets/animations/no_wifi_animation.json').readAsStringSync();

  @override
  Future<String> loadString(String key, {bool cache = true}) async{
    return animationJson;
  }
}

我的主要功能看起来像这样：

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  late Widget myApp;
  late FakeAssetsBundle fakeAssetsBundle;

  setUp(() {
    fakeAssetsBundle = FakeAssetsBundle();
    myApp = MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: DefaultAssetBundle(
        bundle: fakeAssetsBundle,
        child: const NotConnectedScreen()),
    );
  });
testWidgets('NotConnectedScreen LottieBuilder plays the correct Animation',
      (tester) async {
    final lottieBilder =
        LottieBuilder.asset('assets/animations/no_wifi_animation.json');
    await tester.pumpWidget(myApp);
    expect(find.byWidget(lottieBilder), findsOneWidget);
  });
}

仍然是测试 ： t通过，任何帮助都将得到很大的批准。