[hcpp] Add tests for transform mutator (#164664)
Adds tests covering all transform cases (rotation, flipping, scaling, translation). Fixes https://github.com/flutter/flutter/issues/164213. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [ ] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md --------- Co-authored-by: Gray Mackall <mackall@google.com>
This commit is contained in:
Gray Mackall
GitHub
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commit
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:convert';
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import 'dart:math' as math;
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import 'package:android_driver_extensions/extension.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_driver/driver_extension.dart';
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import '../src/allow_list_devices.dart';
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void main() async {
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ensureAndroidDevice();
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enableFlutterDriverExtension(
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handler: (String? command) async {
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return json.encode(<String, Object?>{
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'supported': await HybridAndroidViewController.checkIfSupported(),
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});
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},
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commands: <CommandExtension>[nativeDriverCommands],
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);
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// Run on full screen.
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await SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersive);
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runApp(const MainApp());
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}
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final class MainApp extends StatefulWidget {
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const MainApp({super.key});
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@override
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State<MainApp> createState() => _MainAppState();
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}
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class _MainAppState extends State<MainApp> with SingleTickerProviderStateMixin {
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double angle = 0;
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double scale = 1.0;
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Offset translation = Offset.zero;
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bool flippedX = false;
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void _incrementAngle() {
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setState(() {
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angle += 0.5;
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});
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}
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void _incrementScale() {
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setState(() {
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scale += 0.1;
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});
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}
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void _decrementScale() {
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setState(() {
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scale -= 0.1;
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});
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}
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void _incrementTranslation() {
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setState(() {
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translation = translation.translate(10, 0);
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});
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}
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void _decrementTranslation() {
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setState(() {
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translation = translation.translate(-10, 0);
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});
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}
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void _toggleFlip() {
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setState(() {
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flippedX = !flippedX;
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});
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}
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@override
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void initState() {
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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final Matrix4 transformMatrix =
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Matrix4.identity()
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..translate(translation.dx, translation.dy)
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..scale(scale)
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..rotateZ(angle * math.pi);
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final Widget transformedView = Transform.flip(
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flipX: flippedX,
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child: Transform(
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transform: transformMatrix,
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alignment: Alignment.center,
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child: const Stack(
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alignment: Alignment.center,
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children: <Widget>[
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SizedBox(width: 300, height: 500, child: ColoredBox(color: Colors.green)),
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SizedBox(
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width: 200,
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height: 400,
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child: _HybridCompositionAndroidPlatformView(
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viewType: 'blue_orange_gradient_platform_view',
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),
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),
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],
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),
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),
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);
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final Widget widget = Column(
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children: <Widget>[
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Wrap(
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alignment: WrapAlignment.center,
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children: <Widget>[
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TextButton(
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onPressed: _incrementAngle,
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key: const ValueKey<String>('Rotate'),
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child: const Text('Rotate'),
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),
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TextButton(
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onPressed: _incrementScale,
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key: const ValueKey<String>('Scale Up'),
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child: const Text('Scale Up'),
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),
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TextButton(
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onPressed: _decrementScale,
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key: const ValueKey<String>('Scale Down'),
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child: const Text('Scale Down'),
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),
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TextButton(
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onPressed: _incrementTranslation,
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key: const ValueKey<String>('Translate Right'),
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child: const Text('Translate Right'),
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),
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TextButton(
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onPressed: _decrementTranslation,
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key: const ValueKey<String>('Translate Left'),
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child: const Text('Translate Left'),
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),
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TextButton(
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onPressed: _toggleFlip,
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key: const ValueKey<String>('Flip X'),
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child: const Text('Flip X'),
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),
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],
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),
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transformedView,
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],
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);
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(body: Center(child: widget)),
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);
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}
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}
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final class _HybridCompositionAndroidPlatformView extends StatelessWidget {
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const _HybridCompositionAndroidPlatformView({required this.viewType});
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final String viewType;
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@override
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Widget build(BuildContext context) {
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return PlatformViewLink(
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viewType: viewType,
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surfaceFactory: (BuildContext context, PlatformViewController controller) {
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return AndroidViewSurface(
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controller: controller as AndroidViewController,
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gestureRecognizers: const <Factory<OneSequenceGestureRecognizer>>{},
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hitTestBehavior: PlatformViewHitTestBehavior.transparent,
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);
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},
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onCreatePlatformView: (PlatformViewCreationParams params) {
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return PlatformViewsService.initHybridAndroidView(
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id: params.id,
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viewType: viewType,
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layoutDirection: TextDirection.ltr,
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creationParamsCodec: const StandardMessageCodec(),
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)
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..addOnPlatformViewCreatedListener(params.onPlatformViewCreated)
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..create();
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},
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);
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}
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}
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@ -0,0 +1,128 @@
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:convert';
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import 'package:android_driver_extensions/native_driver.dart';
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import 'package:android_driver_extensions/skia_gold.dart';
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import 'package:flutter_driver/flutter_driver.dart';
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import 'package:test/test.dart';
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import '../_luci_skia_gold_prelude.dart';
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/// For local debugging, a (local) golden-file is required as a baseline:
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///
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/// ```sh
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/// # Checkout HEAD, i.e. *before* changes you want to test.
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/// UPDATE_GOLDENS=1 flutter drive lib/hcpp/platform_view_transform_main.dart
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///
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/// # Make your changes.
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///
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/// # Run the test against baseline.
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/// flutter drive lib/hcpp/platform_view_transform_main.dart
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/// ```
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///
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/// For a convenient way to deflake a test, see `tool/deflake.dart`.
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void main() async {
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const String goldenPrefix = 'hybrid_composition_pp_platform_view';
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late final FlutterDriver flutterDriver;
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late final NativeDriver nativeDriver;
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setUpAll(() async {
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if (isLuci) {
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await enableSkiaGoldComparator(namePrefix: 'android_engine_test$goldenVariant');
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}
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flutterDriver = await FlutterDriver.connect();
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nativeDriver = await AndroidNativeDriver.connect(flutterDriver);
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await nativeDriver.configureForScreenshotTesting();
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await flutterDriver.waitUntilFirstFrameRasterized();
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});
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tearDownAll(() async {
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await nativeDriver.close();
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await flutterDriver.close();
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});
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test('verify that HCPP is supported and enabled', () async {
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final Map<String, Object?> response =
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json.decode(await flutterDriver.requestData('')) as Map<String, Object?>;
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expect(response['supported'], true);
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}, timeout: Timeout.none);
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test('should rotate in a circle', () async {
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.no_transform.png'),
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);
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await flutterDriver.tap(find.byValueKey('Rotate'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.half_pi_radians.png'),
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);
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await flutterDriver.tap(find.byValueKey('Rotate'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.one_pi_radians.png'),
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);
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await flutterDriver.tap(find.byValueKey('Rotate'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.one_and_a_half_pi_radians.png'),
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);
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await flutterDriver.tap(find.byValueKey('Rotate'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.no_transform.png'),
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);
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}, timeout: Timeout.none);
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test('should scale down and then back up', () async {
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await flutterDriver.tap(find.byValueKey('Scale Down'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.scaled_down.png'),
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);
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await flutterDriver.tap(find.byValueKey('Scale Up'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.no_transform.png'),
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);
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}, timeout: Timeout.none);
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test('should flip and then flip back', () async {
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await flutterDriver.tap(find.byValueKey('Flip X'));
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await expectLater(nativeDriver.screenshot(), matchesGoldenFile('$goldenPrefix.flipped_x.png'));
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await flutterDriver.tap(find.byValueKey('Flip X'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.no_transform.png'),
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);
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}, timeout: Timeout.none);
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test('should translate and then translate back', () async {
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await flutterDriver.tap(find.byValueKey('Translate Left'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.translated_left.png'),
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);
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await flutterDriver.tap(find.byValueKey('Translate Right'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.no_transform.png'),
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);
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}, timeout: Timeout.none);
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test('should match all applied', () async {
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await flutterDriver.tap(find.byValueKey('Flip X'));
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await flutterDriver.tap(find.byValueKey('Translate Right'));
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await flutterDriver.tap(find.byValueKey('Scale Down'));
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await flutterDriver.tap(find.byValueKey('Rotate'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.all_applied.png'),
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);
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}, timeout: Timeout.none);
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}
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