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Tests fails with error:Unable to load asset: shaders/ink_sparkle.frag when using ThemeData(useMaterial3: true) #104084

@jtdLab

Description

@jtdLab

Steps to Reproduce

  1. Create new app via flutter create .
  2. Set useMaterial3 of MaterialApps theme to true.
  3. Run the following "test":
  testWidgets('Foo bar', (tester) async {
    await tester.pumpWidget(const MyApp());

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

Expected results: Test passing

Actual results: Test failing

Code sample
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug painting" (press "p" in the console, choose the
          // "Toggle Debug Paint" action from the Flutter Inspector in Android
          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
          // to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}
Logs
Pending timers:
Timer (duration: 0:00:00.000000, periodic: false), created:
#0      new FakeTimer._ (package:fake_async/fake_async.dart:308:62)
#1      FakeAsync._createTimer (package:fake_async/fake_async.dart:252:27)
#2      FakeAsync.run.<anonymous closure> (package:fake_async/fake_async.dart:185:19)
#7      FragmentProgram.compile (dart:ui/painting.dart:3872:12)
#8      FragmentShaderManager.compile (package:flutter/src/material/ink_sparkle.dart:620:41)
#9      FragmentShaderManager.inkSparkle (package:flutter/src/material/ink_sparkle.dart:614:19)
#10     _InkSparkleFactory.compileShaderIfNeccessary (package:flutter/src/material/ink_sparkle.dart:427:29)
#11     new InkSparkle (package:flutter/src/material/ink_sparkle.dart:125:24)
#12     _InkSparkleFactory.create (package:flutter/src/material/ink_sparkle.dart:452:12)
#13     _InkResponseState._createInkFeature (package:flutter/src/material/ink_well.dart:912:72)
#14     _InkResponseState._startSplash (package:flutter/src/material/ink_well.dart:990:42)
#15     _InkResponseState._handleTapDown (package:flutter/src/material/ink_well.dart:971:5)
#16     TapGestureRecognizer.handleTapDown.<anonymous closure> (package:flutter/src/gestures/tap.dart:586:61)
#17     GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:198:24)
#18     TapGestureRecognizer.handleTapDown (package:flutter/src/gestures/tap.dart:586:11)
#19     BaseTapGestureRecognizer._checkDown (package:flutter/src/gestures/tap.dart:289:5)
#20     BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:267:7)
#21     GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:157:27)
#22     GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:449:20)
#23     GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:425:22)
#24     RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:329:11)
#25     GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:380:7)
#26     GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:344:5)
#27     TestWidgetsFlutterBinding.handlePointerEventForSource.<anonymous closure> (package:flutter_test/src/binding.dart:523:42)
#28     TestWidgetsFlutterBinding.withPointerEventSource (package:flutter_test/src/binding.dart:533:11)
#29     TestWidgetsFlutterBinding.handlePointerEventForSource (package:flutter_test/src/binding.dart:523:5)
#30     WidgetTester.sendEventToBinding.<anonymous closure> (package:flutter_test/src/widget_tester.dart:808:15)
#31     WidgetTester.sendEventToBinding.<anonymous closure> (package:flutter_test/src/widget_tester.dart:807:39)
#34     TestAsyncUtils.guard (package:flutter_test/src/test_async_utils.dart:71:41)
#35     WidgetTester.sendEventToBinding (package:flutter_test/src/widget_tester.dart:807:27)
#36     TestGesture.up.<anonymous closure> (package:flutter_test/src/test_pointer.dart:396:24)
#37     TestGesture.up.<anonymous closure> (package:flutter_test/src/test_pointer.dart:394:39)
#40     TestAsyncUtils.guard (package:flutter_test/src/test_async_utils.dart:71:41)
#41     TestGesture.up (package:flutter_test/src/test_pointer.dart:394:27)
#42     WidgetController.tapAt.<anonymous closure> (package:flutter_test/src/controller.dart:280:21)
asynchronous suspension>
<asynchronous suspension>
(elided 9 frames from dart:async and package:stack_trace)

══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
The following assertion was thrown running a test:
A Timer is still pending even after the widget tree was disposed.
'package:flutter_test/src/binding.dart':
Failed assertion: line 1291 pos 12: '!timersPending'

When the exception was thrown, this was the stack:
#2      AutomatedTestWidgetsFlutterBinding._verifyInvariants (package:flutter_test/src/binding.dart:1291:12)
#3      TestWidgetsFlutterBinding._runTestBody (package:flutter_test/src/binding.dart:848:7)
<asynchronous suspension>
(elided 2 frames from class _AssertionError)
No issues found! (ran in 2.6s)
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a: tests"flutter test", flutter_test, or one of our testsf: material designflutter/packages/flutter/material repository.found in release: 3.0Found to occur in 3.0found in release: 3.1Found to occur in 3.1frameworkflutter/packages/flutter repository. See also f: labels.has reproducible stepsThe issue has been confirmed reproducible and is ready to work onr: fixedIssue is closed as already fixed in a newer version

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