Sigmund Cherem
912005267d
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>
52 lines
1.5 KiB
Dart
52 lines
1.5 KiB
Dart
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.7
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// Native testing library. Provides support for mock @Native classes and
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// collects common imports.
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import "package:expect/expect.dart";
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import 'dart:_js_helper' show Native;
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import 'dart:_foreign_helper' show JS;
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export "package:expect/expect.dart";
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export 'dart:_js_helper'
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show Creates, Native, JSName, Returns, applyTestExtensions;
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export 'dart:_foreign_helper' show JS;
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void nativeTesting() {
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JS('', r'''
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((function() {
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var toStringResultProperty = "_toStringResult";
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var objectToStringMethod = Object.prototype.toString;
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Object.prototype.toString = function() {
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if (this != null) {
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var constructor = this.constructor;
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if (constructor != null) {
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var result = constructor[toStringResultProperty];
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if (typeof result == "string") return result;
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}
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}
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return objectToStringMethod.call(this);
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};
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// To mock a @Native class with JavaScript constructor `Foo`, add
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//
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// self.nativeConstructor(Foo);
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//
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// to the JavaScript code.
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self.nativeConstructor = function(constructor, opt_name) {
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var toStringResult = "[object " + (opt_name || constructor.name) + "]";
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constructor[toStringResultProperty] = toStringResult;
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};
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})())
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''');
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}
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@pragma('dart2js:noInline')
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@pragma('dart2js:assumeDynamic')
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confuse(x) => x;
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