mirror of
https://github.com/dart-lang/sdk
synced 2024-11-02 15:17:07 +00:00
Test extensions on and semantics of JavaScriptObject
Tests static extension methods on JavaScriptObject work as expected, as well as making sure it works with package:js. Once extension types are added, these tests need to be changed to use those instead. Change-Id: I9504c8a3a8e466c680b221e259d93c1df5474218 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199601 Commit-Queue: Srujan Gaddam <srujzs@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
This commit is contained in:
Srujan Gaddam
commit-bot@chromium.org
parent
3719e55935
commit
839408f00b
4 changed files with 378 additions and 0 deletions
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@ -41,6 +41,7 @@ js/extends_test/extends_with_es6_test: SkipByDesign # Issue 42085. CSP policy di
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js/instanceof_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/is_check_and_as_cast_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/async_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/javascriptobject_extensions_test.dart: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/jsify_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/promise_reject_null_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/properties_implicit_checks_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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@ -41,6 +41,7 @@ js/extends_test/extends_with_es6_test: SkipByDesign # Issue 42085. CSP policy di
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js/instanceof_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/is_check_and_as_cast_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/async_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/javascriptobject_extensions_test.dart: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/jsify_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/promise_reject_null_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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js/js_util/properties_implicit_checks_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
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197
tests/web/internal/javascriptobject_extensions_test.dart
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197
tests/web/internal/javascriptobject_extensions_test.dart
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@ -0,0 +1,197 @@
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// Copyright (c) 2021, 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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// Tests that JS objects can be referred to as extensions of JavaScriptObject.
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@JS()
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library javascriptobject_extensions_test;
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import 'package:js/js.dart';
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import 'package:js/js_util.dart';
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import 'package:expect/expect.dart' show hasUnsoundNullSafety;
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import 'package:expect/minitest.dart';
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import 'dart:typed_data';
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import 'dart:_interceptors'
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show JavaScriptObject, UnknownJavaScriptObject, JSObject;
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@JS()
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external void eval(String code);
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class InterfaceClass {}
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@JS('JSClass')
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class JSClass implements InterfaceClass {
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external JSClass();
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external String get name;
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}
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class ImplementationClass implements JSClass {
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String get name => 'ImplementationClass';
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}
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@JS()
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@anonymous
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class AnonymousClass {
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external String get name;
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}
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class DartClass {}
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external AnonymousClass get anonymousObj;
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external ByteBuffer get arrayBuffer;
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@JS('arrayBuffer')
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external dynamic get arrayBufferDynamic;
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// Extension on JavaScriptObject. In the future, when extension types are
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// introduced, this will be explicitly disallowed.
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extension JavaScriptObjectExtension on JavaScriptObject {
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// Use `className` instead so there's no ambiguity on what method is called.
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String get className => getProperty(this, 'name');
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}
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// Test runtime type checks and casts.
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@pragma('dart2js:noInline')
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void runtimeIsAndAs<T>(instance, [bool expectation = true]) {
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expect(instance is T, expectation);
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expect(() => instance as T, expectation ? returnsNormally : throws);
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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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JavaScriptObject returnJavaScriptObject() => throw '';
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JavaScriptObject? returnNullableJavaScriptObject() => throw '';
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JSClass returnJS() => throw '';
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AnonymousClass returnAnon() => throw '';
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UnknownJavaScriptObject returnUnknownJavaScriptObject() => throw '';
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ImplementationClass returnImpl() => throw '';
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main() {
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eval(r'''
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function JSClass() {
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this.name = 'JSClass';
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}
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self.anonymousObj = {
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name: 'AnonymousClass',
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};
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self.arrayBuffer = new ArrayBuffer();
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''');
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// Instances of JS classes can be casted to JavaScriptObject and back.
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var jsObj = JSClass();
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expect(jsObj is JavaScriptObject, true);
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runtimeIsAndAs<JavaScriptObject>(jsObj);
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var javaScriptObject = jsObj as JavaScriptObject;
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expect(javaScriptObject.className == 'JSClass', true);
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expect(javaScriptObject is JSClass, true);
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runtimeIsAndAs<JSClass>(javaScriptObject);
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// Object literals can be casted to JavaScriptObject and back.
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expect(anonymousObj is JavaScriptObject, true);
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runtimeIsAndAs<JavaScriptObject>(anonymousObj);
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javaScriptObject = anonymousObj as JavaScriptObject;
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expect(javaScriptObject.className == 'AnonymousClass', true);
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expect(javaScriptObject is AnonymousClass, true);
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runtimeIsAndAs<AnonymousClass>(javaScriptObject);
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// Dart objects that don't implement a JS type cannot be casted to or from
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// JavaScriptObject.
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var dartObj = DartClass();
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expect(dartObj is JavaScriptObject, false);
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runtimeIsAndAs<JavaScriptObject>(dartObj, false);
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expect(javaScriptObject is DartClass, false);
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runtimeIsAndAs<DartClass>(javaScriptObject, false);
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// Native objects cannot be casted to or from JavaScriptObject.
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expect(arrayBuffer is JavaScriptObject, false);
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runtimeIsAndAs<JavaScriptObject>(arrayBuffer, false);
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expect(javaScriptObject is ByteBuffer, false);
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runtimeIsAndAs<ByteBuffer>(javaScriptObject, false);
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// Dynamic native objects are intercepted and cannot be casted to
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// JavaScriptObject.
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runtimeIsAndAs<JavaScriptObject>(arrayBufferDynamic, false);
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// Make sure `Object` methods work with JavaScriptObject like they do with JS
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// interop objects.
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expect(anonymousObj == javaScriptObject, true);
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expect(javaScriptObject.hashCode, isNotNull);
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expect(javaScriptObject.toString, isNotNull);
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expect(javaScriptObject.noSuchMethod, isNotNull);
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expect(javaScriptObject.runtimeType, isNotNull);
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// Test that nullability works as expected.
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expect(null is JavaScriptObject?, true);
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runtimeIsAndAs<JavaScriptObject?>(null);
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expect(null is JavaScriptObject, false);
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runtimeIsAndAs<JavaScriptObject>(null, hasUnsoundNullSafety);
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// Transitive is and as.
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// JS type <: JavaScriptObject <: JSObject
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expect(jsObj is JSObject, true);
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runtimeIsAndAs<JSObject>(jsObj);
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// JavaScriptObject <: JS type <: Dart interface
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expect(javaScriptObject is InterfaceClass, true);
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runtimeIsAndAs<InterfaceClass>(javaScriptObject);
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// Dart implementation <: JS type <: JavaScriptObject
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var impl = ImplementationClass();
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expect(impl is JavaScriptObject, true);
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runtimeIsAndAs<JavaScriptObject>(impl);
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// Dart implementation <: JS type <: JavaScriptObject <: JSObject
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expect(impl is JSObject, true);
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runtimeIsAndAs<JSObject>(impl);
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// Test that subtyping with nullability works as expected.
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expect(returnJavaScriptObject is JavaScriptObject? Function(), true);
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expect(returnNullableJavaScriptObject is JavaScriptObject Function(),
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hasUnsoundNullSafety);
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// Test that JavaScriptObject can be used in place of package:js types in
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// function types, and vice versa.
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expect(returnJavaScriptObject is JSClass Function(), true);
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expect(returnJS is JavaScriptObject Function(), true);
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expect(returnJavaScriptObject is AnonymousClass Function(), true);
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expect(returnAnon is JavaScriptObject Function(), true);
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// Transitive subtyping.
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// UnknownJavaScriptObject <: JavaScriptObject <: JS type
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expect(returnUnknownJavaScriptObject is JSClass Function(), true);
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// JS type <: JavaScriptObject <: JSObject
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expect(returnJS is JSObject Function(), true);
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// JavaScriptObject <: JS type <: Dart interface
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expect(returnJavaScriptObject is InterfaceClass Function(), true);
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// Dart implementation <: JS type <: JavaScriptObject
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expect(returnImpl is JavaScriptObject Function(), true);
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// UnknownJavaScriptObject <: JavaScriptObject <: JS type <: Dart interface
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expect(returnUnknownJavaScriptObject is InterfaceClass Function(), true);
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// Dart implementation <: JS type <: JavaScriptObject <: JSObject
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expect(returnImpl is JSObject Function(), true);
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// Run above subtype checks but at runtime.
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expect(confuse(returnJavaScriptObject) is JavaScriptObject? Function(), true);
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expect(confuse(returnNullableJavaScriptObject) is JavaScriptObject Function(),
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hasUnsoundNullSafety);
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expect(confuse(returnJavaScriptObject) is JSClass Function(), true);
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expect(confuse(returnJS) is JavaScriptObject Function(), true);
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expect(confuse(returnJavaScriptObject) is AnonymousClass Function(), true);
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expect(confuse(returnAnon) is JavaScriptObject Function(), true);
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expect(confuse(returnUnknownJavaScriptObject) is JSClass Function(), true);
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expect(confuse(returnJS) is JSObject Function(), true);
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expect(confuse(returnJavaScriptObject) is InterfaceClass Function(), true);
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expect(confuse(returnImpl) is JavaScriptObject Function(), true);
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expect(confuse(returnUnknownJavaScriptObject) is InterfaceClass Function(),
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true);
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expect(confuse(returnImpl) is JSObject Function(), true);
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}
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179
tests/web_2/internal/javascriptobject_extensions_test.dart
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179
tests/web_2/internal/javascriptobject_extensions_test.dart
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@ -0,0 +1,179 @@
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// Copyright (c) 2021, 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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// Tests that JS objects can be referred to as extensions of JavaScriptObject.
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@JS()
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library javascriptobject_extensions_test;
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import 'package:js/js.dart';
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import 'package:js/js_util.dart';
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import 'package:expect/minitest.dart';
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import 'dart:typed_data';
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import 'dart:_interceptors'
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show JavaScriptObject, UnknownJavaScriptObject, JSObject;
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@JS()
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external void eval(String code);
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class InterfaceClass {}
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@JS('JSClass')
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class JSClass implements InterfaceClass {
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external JSClass();
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external String get name;
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}
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class ImplementationClass implements JSClass {
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String get name => 'ImplementationClass';
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}
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@JS()
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@anonymous
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class AnonymousClass {
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external String get name;
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}
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class DartClass {}
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external AnonymousClass get anonymousObj;
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external ByteBuffer get arrayBuffer;
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@JS('arrayBuffer')
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external dynamic get arrayBufferDynamic;
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// Extension on JavaScriptObject. In the future, when extension types are
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// introduced, this will be explicitly disallowed.
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extension JavaScriptObjectExtension on JavaScriptObject {
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// Use `className` instead so there's no ambiguity on what method is called.
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String get className => getProperty(this, 'name');
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}
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// Test runtime type checks and casts.
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@pragma('dart2js:noInline')
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void runtimeIsAndAs<T>(instance, [bool expectation = true]) {
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expect(instance is T, expectation);
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expect(() => instance as T, expectation ? returnsNormally : throws);
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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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JavaScriptObject returnJavaScriptObject() => throw '';
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JSClass returnJS() => throw '';
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AnonymousClass returnAnon() => throw '';
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UnknownJavaScriptObject returnUnknownJavaScriptObject() => throw '';
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ImplementationClass returnImpl() => throw '';
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main() {
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eval(r'''
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function JSClass() {
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this.name = 'JSClass';
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}
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self.anonymousObj = {
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name: 'AnonymousClass',
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};
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self.arrayBuffer = new ArrayBuffer();
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''');
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// Instances of JS classes can be casted to JavaScriptObject and back.
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var jsObj = JSClass();
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expect(jsObj is JavaScriptObject, true);
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runtimeIsAndAs<JavaScriptObject>(jsObj);
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var javaScriptObject = jsObj as JavaScriptObject;
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expect(javaScriptObject.className == 'JSClass', true);
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expect(javaScriptObject is JSClass, true);
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runtimeIsAndAs<JSClass>(javaScriptObject);
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// Object literals can be casted to JavaScriptObject and back.
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expect(anonymousObj is JavaScriptObject, true);
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runtimeIsAndAs<JavaScriptObject>(anonymousObj);
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javaScriptObject = anonymousObj as JavaScriptObject;
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expect(javaScriptObject.className == 'AnonymousClass', true);
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expect(javaScriptObject is AnonymousClass, true);
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runtimeIsAndAs<AnonymousClass>(javaScriptObject);
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// Dart objects that don't implement a JS type cannot be casted to or from
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// JavaScriptObject.
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var dartObj = DartClass();
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expect(dartObj is JavaScriptObject, false);
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runtimeIsAndAs<JavaScriptObject>(dartObj, false);
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expect(javaScriptObject is DartClass, false);
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runtimeIsAndAs<DartClass>(javaScriptObject, false);
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// Native objects cannot be casted to or from JavaScriptObject.
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expect(arrayBuffer is JavaScriptObject, false);
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runtimeIsAndAs<JavaScriptObject>(arrayBuffer, false);
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expect(javaScriptObject is ByteBuffer, false);
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runtimeIsAndAs<ByteBuffer>(javaScriptObject, false);
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// Dynamic native objects are intercepted and cannot be casted to
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// JavaScriptObject.
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runtimeIsAndAs<JavaScriptObject>(arrayBufferDynamic, false);
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// Make sure `Object` methods work with JavaScriptObject like they do with JS
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// interop objects.
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expect(anonymousObj == javaScriptObject, true);
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expect(javaScriptObject.hashCode, isNotNull);
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expect(javaScriptObject.toString, isNotNull);
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expect(javaScriptObject.noSuchMethod, isNotNull);
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expect(javaScriptObject.runtimeType, isNotNull);
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// Transitive is and as.
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// JS type <: JavaScriptObject <: JSObject
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expect(jsObj is JSObject, true);
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runtimeIsAndAs<JSObject>(jsObj);
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// JavaScriptObject <: JS type <: Dart interface
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expect(javaScriptObject is InterfaceClass, true);
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runtimeIsAndAs<InterfaceClass>(javaScriptObject);
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// Dart implementation <: JS type <: JavaScriptObject
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var impl = ImplementationClass();
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expect(impl is JavaScriptObject, true);
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runtimeIsAndAs<JavaScriptObject>(impl);
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// Dart implementation <: JS type <: JavaScriptObject <: JSObject
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expect(impl is JSObject, true);
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runtimeIsAndAs<JSObject>(impl);
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// Test that JavaScriptObject can be used in place of package:js types in
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// function types, and vice versa.
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expect(returnJavaScriptObject is JSClass Function(), true);
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expect(returnJS is JavaScriptObject Function(), true);
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expect(returnJavaScriptObject is AnonymousClass Function(), true);
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expect(returnAnon is JavaScriptObject Function(), true);
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// Transitive subtyping.
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// UnknownJavaScriptObject <: JavaScriptObject <: JS type
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expect(returnUnknownJavaScriptObject is JSClass Function(), true);
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// JS type <: JavaScriptObject <: JSObject
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expect(returnJS is JSObject Function(), true);
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// JavaScriptObject <: JS type <: Dart interface
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expect(returnJavaScriptObject is InterfaceClass Function(), true);
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// Dart implementation <: JS type <: JavaScriptObject
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expect(returnImpl is JavaScriptObject Function(), true);
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// UnknownJavaScriptObject <: JavaScriptObject <: JS type <: Dart interface
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expect(returnUnknownJavaScriptObject is InterfaceClass Function(), true);
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// Dart implementation <: JS type <: JavaScriptObject <: JSObject
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expect(returnImpl is JSObject Function(), true);
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// Run above subtype checks but at runtime.
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expect(confuse(returnJavaScriptObject) is JSClass Function(), true);
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expect(confuse(returnJS) is JavaScriptObject Function(), true);
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expect(confuse(returnJavaScriptObject) is AnonymousClass Function(), true);
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expect(confuse(returnAnon) is JavaScriptObject Function(), true);
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expect(confuse(returnUnknownJavaScriptObject) is JSClass Function(), true);
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expect(confuse(returnJS) is JSObject Function(), true);
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expect(confuse(returnJavaScriptObject) is InterfaceClass Function(), true);
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expect(confuse(returnImpl) is JavaScriptObject Function(), true);
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expect(confuse(returnUnknownJavaScriptObject) is InterfaceClass Function(),
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true);
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expect(confuse(returnImpl) is JSObject Function(), true);
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}
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