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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
47 lines
1.8 KiB
Dart
47 lines
1.8 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:async';
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import 'dart:convert';
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import 'dart:js_interop';
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import 'dart:js_interop_unsafe';
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@JS('window')
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external JSObject get _window;
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/// The web implementation of [registerWebServiceExtension].
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///
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/// Adds a hidden `window.$flutterDriver` JavaScript function that's called by
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/// `FlutterWebDriver` to fulfill FlutterDriver commands.
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///
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/// See also:
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///
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/// * `_extension_io.dart`, which has the dart:io implementation
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void registerWebServiceExtension(Future<Map<String, dynamic>> Function(Map<String, String>) callback) {
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// Define the result variable because packages/flutter_driver/lib/src/driver/web_driver.dart
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// checks for this value to become non-null when waiting for the result. If this value is
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// undefined at the time of the check, WebDriver throws an exception.
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_window.setProperty(r'$flutterDriverResult'.toJS, null);
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_window.setProperty(r'$flutterDriver'.toJS, (JSAny message) {
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(() async {
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try {
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final Map<String, dynamic> messageJson = jsonDecode((message as JSString).toDart) as Map<String, dynamic>;
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final Map<String, String> params = messageJson.cast<String, String>();
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final Map<String, dynamic> result = await callback(params);
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_window.setProperty(r'$flutterDriverResult'.toJS, json.encode(result).toJS);
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} catch (error, stackTrace) {
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// Encode the error in the same format the FlutterDriver extension uses.
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// See //packages/flutter_driver/lib/src/extension/extension.dart
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_window.setProperty(r'$flutterDriverResult'.toJS,
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json.encode(<String, dynamic>{
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'isError': true,
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'response': '$error\n$stackTrace',
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}).toJS
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);
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}
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})();
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}.toJS);
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}
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