[web] delete unhelpful image loading e2e test (#122059)

[web] delete unhelpful image loading e2e test

dev/bots/test.dart

@@ -1162,11 +1162,6 @@ Future<void> _runWebLongRunningTests() async {
       ),
     ],
 
-    // This test specifically tests how images are loaded in HTML mode, so we don't run it in CanvasKit mode.
-    () => _runWebE2eTest('image_loading_integration', buildMode: 'debug', renderer: 'html'),
-    () => _runWebE2eTest('image_loading_integration', buildMode: 'profile', renderer: 'html'),
-    () => _runWebE2eTest('image_loading_integration', buildMode: 'release', renderer: 'html'),
-
     // This test doesn't do anything interesting w.r.t. rendering, so we don't run the full build mode x renderer matrix.
     () => _runWebE2eTest('platform_messages_integration', buildMode: 'debug', renderer: 'canvaskit'),
     () => _runWebE2eTest('platform_messages_integration', buildMode: 'profile', renderer: 'html'),

dev/integration_tests/web_e2e_tests/lib/image_loading_main.dart

-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'dart:async';
-
-import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-
-final Completer<void> _assetImageCompleter = Completer<void>();
-final Completer<void> _networkImageCompleter = Completer<void>();
-
-/// Notifies that Image.asset used in the test app loaded the image.
-@visibleForTesting
-Future<void> get whenAssetImageLoads => _assetImageCompleter.future;
-
-/// Notifies that Image.network used in the test app loaded the image.
-@visibleForTesting
-Future<void> get whenNetworkImageLoads => _networkImageCompleter.future;
-
-Future<void> main() async {
-  WidgetsFlutterBinding.ensureInitialized();
-  const MethodChannel channel =
-      OptionalMethodChannel('flutter/web_test_e2e', JSONMethodCodec());
-
-  // Artificially override the device pixel ratio to force the framework to pick the 1.5x asset variants.
-  await channel.invokeMethod<void>('setDevicePixelRatio', '1.5');
-  runApp(const MyApp());
-}
-
-class MyApp extends StatefulWidget {
-  const MyApp({super.key});
-
-  @override
-  MyAppState createState() => MyAppState();
-}
-
-class MyAppState extends State<MyApp> {
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-        key: const Key('mainapp'),
-        title: 'Integration Test App',
-        home: Column(children: <Widget>[
-          const Text('Asset image:'),
-          RepaintBoundary(child: Image.asset(
-            'assets/icons/material/material.png',
-            package: 'flutter_gallery_assets',
-            frameBuilder: (
-              BuildContext context,
-              Widget child,
-              int? frame,
-              bool wasSynchronouslyLoaded,
-            ) {
-              if (frame != null) {
-                _assetImageCompleter.complete();
-              }
-              return child;
-            },
-          )),
-          const Text('Network image:'),
-          RepaintBoundary(child: Image.network(
-            'assets/packages/flutter_gallery_assets/assets/icons/material/material.png',
-            frameBuilder: (
-              BuildContext context,
-              Widget child,
-              int? frame,
-              bool wasSynchronouslyLoaded,
-            ) {
-              if (frame != null) {
-                _networkImageCompleter.complete();
-              }
-              return child;
-            },
-          )),
-      ])
-    );
-  }
-}

dev/integration_tests/web_e2e_tests/test_driver/image_loading_integration.dart

-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'dart:html' as html;
-import 'package:flutter_test/flutter_test.dart';
-import 'package:integration_test/integration_test.dart';
-import 'package:web_e2e_tests/common.dart';
-import 'package:web_e2e_tests/image_loading_main.dart' as app;
-
-void main() {
-  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
-
-  testWidgets('Image loads asset variant based on device pixel ratio',
-          (WidgetTester tester) async {
-    await app.main();
-    await tester.pumpAndSettle();
-
-    // `pumpAndSettle` only waits until no more frames are scheduled, but the
-    // test must wait for the image network requests to finish.
-    await app.whenAssetImageLoads;
-    await app.whenNetworkImageLoads;
-
-    // At the time the network requests are finished the engine may not have
-    // updated the DOM yet. Delay checking the DOM until the next event, which
-    // will guarantee that the current frame is done rendering.
-    await Future<void>.delayed(Duration.zero);
-
-    final List<html.ImageElement> imageElements = findElements('img').cast<html.ImageElement>();
-    expect(imageElements.length, 2);
-    expect(imageElements[0].naturalWidth, 1.5 * 64);
-    expect(imageElements[0].naturalHeight, 1.5 * 64);
-    expect(imageElements[0].width, 64);
-    expect(imageElements[0].height, 64);
-    expect(imageElements[1].width, isNot(0));
-  });
-}

dev/integration_tests/web_e2e_tests/test_driver/image_loading_integration_test.dart

-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:integration_test/integration_test_driver.dart' as test;
-
-Future<void> main() async => test.integrationDriver();