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31209d04ff
* Adds support for `flutter test --wasm`. * The test compilation flow is a bit different now, so that it supports compilers other than DDC. Specifically, when we run a set of unit tests, we generate a "switchboard" main function that imports each unit test and runs the main function for a specific one based off of a value set by the JS bootstrapping code. This way, there is one compile step and the same compile output is invoked for each unit test file. * Also, removes all references to `dart:html` from flutter/flutter. * Adds CI steps for running the framework unit tests with dart2wasm+skwasm * These steps are marked as `bringup: true`, so we don't know what kind of failures they will result in. Any failures they have will not block the tree at all yet while we're still in `bringup: true`. Once this PR is merged, I plan on looking at any failures and either fixing them or disabling them so we can get these CI steps running on presubmit. This fixes https://github.com/flutter/flutter/issues/126692
101 lines
2.4 KiB
Dart
101 lines
2.4 KiB
Dart
// 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:js_interop';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/widgets.dart';
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import 'package:meta/dart2js.dart';
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import 'package:web/web.dart' as web;
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// Tests that the framework prints stack traces in all build modes.
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//
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// Regression test for https://github.com/flutter/flutter/issues/68616.
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//
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// See also `dev/integration_tests/web/lib/stack_trace.dart` that tests the
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// framework's ability to parse stack traces in all build modes.
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Future<void> main() async {
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final StringBuffer errorMessage = StringBuffer();
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debugPrint = (String? message, { int? wrapWidth }) {
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errorMessage.writeln(message);
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};
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runApp(const ThrowingWidget());
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// Let the framework flush error messages.
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await Future<void>.delayed(Duration.zero);
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final StringBuffer output = StringBuffer();
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if (_errorMessageFormattedCorrectly(errorMessage.toString())) {
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output.writeln('--- TEST SUCCEEDED ---');
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} else {
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output.writeln('--- UNEXPECTED ERROR MESSAGE FORMAT ---');
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output.writeln(errorMessage);
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output.writeln('--- TEST FAILED ---');
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}
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print(output);
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web.window.fetch(
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'/test-result'.toJS,
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web.RequestInit(
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method: 'POST',
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body: '$output'.toJS,
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)
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);
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}
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bool _errorMessageFormattedCorrectly(String errorMessage) {
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if (!errorMessage.contains('Test error message')) {
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return false;
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}
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// In release mode symbols are minified. No sense testing the contents of the stack trace.
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if (kReleaseMode) {
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return true;
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}
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const List<String> expectedFunctions = <String>[
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'topLevelFunction',
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'secondLevelFunction',
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'thirdLevelFunction',
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];
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return expectedFunctions.every(errorMessage.contains);
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}
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class ThrowingWidget extends StatefulWidget {
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const ThrowingWidget({super.key});
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@override
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State<ThrowingWidget> createState() => _ThrowingWidgetState();
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}
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class _ThrowingWidgetState extends State<ThrowingWidget> {
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@override
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void initState() {
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super.initState();
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topLevelFunction();
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}
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@override
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Widget build(BuildContext context) {
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return Container();
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}
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}
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@noInline
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void topLevelFunction() {
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secondLevelFunction();
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}
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@noInline
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void secondLevelFunction() {
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thirdLevelFunction();
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}
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@noInline
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void thirdLevelFunction() {
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throw Exception('Test error message');
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}
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