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// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
@JS()
library js_native_test;
import 'dart:async';
import 'dart:html';
import 'dart:typed_data' show ByteBuffer, Int32List;
import 'dart:indexed_db' show IdbFactory, KeyRange;
import 'package:js/js.dart';
import 'package:js/js_util.dart' as js_util;
import 'package:expect/minitest.dart';
import 'package:async_helper/async_helper.dart';
_injectJs() {
final script = new ScriptElement();
script.type = 'text/javascript';
script.innerHtml = r"""
var x = 42;
var _x = 123;
var myArray = ["value1"];
function returnThis() {
return this;
}
function getTypeOf(o) {
return typeof(o);
}
function Foo(a) {
this.a = a;
}
Foo.b = 38;
Foo.prototype.bar = function() {
return this.a;
}
Foo.prototype.toString = function() {
return "I'm a Foo a=" + this.a;
}
var container = new Object();
container.Foo = Foo;
function checkMap(m, key, value) {
if (m.hasOwnProperty(key))
return m[key] == value;
else
return false;
}
var rejectedPromise = new Promise((resolve, reject) => reject('rejected'));
var resolvedPromise = new Promise(resolve => resolve('resolved'));
function getResolvedPromise() {
return resolvedPromise;
}
""";
document.body!.append(script);
}
@JS()
external bool checkMap(m, String, value);
@JS('JSON.stringify')
external String stringify(o);
@JS('Node')
external get JSNodeType;
@JS('Element')
external get JSElementType;
@JS('Text')
external get JSTextType;
@JS('HTMLCanvasElement')
external get JSHtmlCanvasElementType;
@JS()
class Foo {
external Foo(num a);
external num get a;
external num bar();
}
@JS('Foo')
external get JSFooType;
@JS()
@anonymous
class ExampleTypedLiteral {
external factory ExampleTypedLiteral({a, b, JS$_c, JS$class});
external get a;
external get b;
external get JS$_c;
external set JS$_c(v);
// Identical to JS$_c but only accessible within the library.
external get _c;
external get JS$class;
external set JS$class(v);
}
@JS()
abstract class Promise<T> {}
@JS()
external Promise get resolvedPromise;
@JS()
external Promise get rejectedPromise;
@JS()
external Promise getResolvedPromise();
@JS("Object.prototype.hasOwnProperty")
external get _hasOwnProperty;
bool hasOwnProperty(o, String name) {
return js_util.callMethod(_hasOwnProperty, 'call', [o, name]);
}
main() {
_injectJs();
group('js_util.jsify()', () {
test('convert a List', () {
final list = [1, 2, 3, 4, 5, 6, 7, 8];
var array = js_util.jsify(list);
expect(array is List, isTrue);
expect(identical(array, list), isFalse);
expect(array.length, equals(list.length));
for (var i = 0; i < list.length; i++) {
expect(array[i], equals(list[i]));
}
});
test('convert an Iterable', () {
final set = new Set.from([1, 2, 3, 4, 5, 6, 7, 8]);
var array = js_util.jsify(set);
expect(array is List, isTrue);
expect(array.length, equals(set.length));
for (var i = 0; i < array.length; i++) {
expect(set.contains(array[i]), isTrue);
}
});
test('convert a Map', () {
var map = {'a': 1, 'b': 2, 'c': 3};
var jsMap = js_util.jsify(map);
expect(jsMap is! List, isTrue);
for (var key in map.keys) {
expect(checkMap(jsMap, key, map[key]), isTrue);
}
});
test('deep convert a complex object', () {
dynamic object = {
'a': [
1,
[2, 3]
],
'b': {'c': 3, 'd': new Foo(42)},
'e': null
};
var jsObject = js_util.jsify(object);
expect(js_util.getProperty(jsObject, 'a')[0], equals(object['a'][0]));
expect(
js_util.getProperty(jsObject, 'a')[1][0], equals(object['a'][1][0]));
expect(
js_util.getProperty(jsObject, 'a')[1][1], equals(object['a'][1][1]));
expect(js_util.getProperty(js_util.getProperty(jsObject, 'b'), 'c'),
equals(object['b']['c']));
expect(js_util.getProperty(js_util.getProperty(jsObject, 'b'), 'd'),
equals(object['b']['d']));
expect(
js_util.callMethod(
js_util.getProperty(js_util.getProperty(jsObject, 'b'), 'd'),
'bar', []),
equals(42));
expect(js_util.getProperty(jsObject, 'e'), isNull);
});
test('throws if object is not a Map or Iterable', () {
expect(() => js_util.jsify('a'), throwsArgumentError);
});
});
group('js_util.newObject', () {
test('create', () {
expect(identical(js_util.newObject(), js_util.newObject()), isFalse);
});
test('callMethod', () {
var o = js_util.newObject();
expect(js_util.callMethod(o, 'toString', []), equals('[object Object]'));
expect(stringify(o), equals('{}'));
});
test('properties', () {
var o = js_util.newObject();
expect(js_util.hasProperty(o, 'foo bar'), isFalse);
expect(js_util.hasProperty(o, 'toString'), isTrue);
expect(hasOwnProperty(o, 'toString'), isFalse);
expect(hasOwnProperty(o, 'foo bar'), isFalse);
js_util.setProperty(o, 'foo bar', 42);
expect(hasOwnProperty(o, 'foo bar'), isTrue);
expect(js_util.getProperty(o, 'foo bar'), equals(42));
expect(js_util.hasProperty(o, 'foo bar'), isTrue);
expect(stringify(o), equals('{"foo bar":42}'));
});
});
group('hasProperty', () {
test('typed object', () {
var f = new Foo(42);
expect(js_util.hasProperty(f, 'a'), isTrue);
expect(js_util.hasProperty(f, 'toString'), isTrue);
js_util.setProperty(f, '__proto__', null);
expect(js_util.hasProperty(f, 'toString'), isFalse);
});
test('typed literal', () {
var l =
new ExampleTypedLiteral(a: 'x', b: 42, JS$_c: null, JS$class: true);
expect(js_util.hasProperty(l, 'a'), isTrue);
expect(js_util.hasProperty(l, 'b'), isTrue);
expect(js_util.hasProperty(l, '_c'), isTrue);
expect(l.JS$_c, isNull);
expect(js_util.hasProperty(l, 'class'), isTrue);
// JS$_c escapes to _c so the property JS$_c will not exist on the object.
expect(js_util.hasProperty(l, r'JS$_c'), isFalse);
expect(js_util.hasProperty(l, r'JS$class'), isFalse);
expect(l.JS$class, isTrue);
l = new ExampleTypedLiteral(a: null);
expect(js_util.hasProperty(l, 'a'), isTrue);
expect(js_util.hasProperty(l, 'b'), isFalse);
expect(js_util.hasProperty(l, '_c'), isFalse);
expect(js_util.hasProperty(l, 'class'), isFalse);
l = new ExampleTypedLiteral(JS$_c: 74);
expect(js_util.hasProperty(l, '_c'), isTrue);
expect(l.JS$_c, equals(74));
});
});
group('getProperty', () {
test('typed object', () {
var f = new Foo(42);
expect(js_util.getProperty(f, 'a'), equals(42));
expect(js_util.getProperty(f, 'toString') is Function, isTrue);
js_util.setProperty(f, '__proto__', null);
expect(js_util.getProperty(f, 'toString'), isNull);
});
test('typed literal', () {
var l = new ExampleTypedLiteral(a: 'x', b: 42, JS$_c: 7, JS$class: true);
expect(js_util.getProperty(l, 'a'), equals('x'));
expect(js_util.getProperty(l, 'b'), equals(42));
expect(js_util.getProperty(l, '_c'), equals(7));
expect(l.JS$_c, equals(7));
expect(js_util.getProperty(l, 'class'), isTrue);
expect(js_util.getProperty(l, r'JS$_c'), isNull);
expect(js_util.getProperty(l, r'JS$class'), isNull);
});
});
group('setProperty', () {
test('typed object', () {
var f = new Foo(42);
expect(js_util.getProperty(f, 'a'), equals(42));
js_util.setProperty(f, 'a', 100);
expect(f.a, equals(100));
expect(js_util.getProperty(f, 'a'), equals(100));
});
test('typed literal', () {
var l = new ExampleTypedLiteral();
js_util.setProperty(l, 'a', 'foo');
expect(js_util.getProperty(l, 'a'), equals('foo'));
expect(l.a, equals('foo'));
js_util.setProperty(l, 'a', l);
expect(identical(l.a, l), isTrue);
var list = ['arr'];
js_util.setProperty(l, 'a', list);
expect(identical(l.a, list), isTrue);
l.JS$class = 42;
expect(l.JS$class, equals(42));
js_util.setProperty(l, 'class', 100);
expect(l.JS$class, equals(100));
});
});
group('callMethod', () {
test('html object', () {
var canvas = new CanvasElement();
expect(
identical(canvas.getContext('2d'),
js_util.callMethod(canvas, 'getContext', ['2d'])),
isTrue);
});
test('typed object', () {
var f = new Foo(42);
expect(js_util.callMethod(f, 'bar', []), equals(42));
});
});
group('instanceof', () {
test('html object', () {
var canvas = new Element.tag('canvas');
expect(js_util.instanceof(canvas, JSNodeType), isTrue);
expect(js_util.instanceof(canvas, JSTextType), isFalse);
expect(js_util.instanceof(canvas, JSElementType), isTrue);
expect(js_util.instanceof(canvas, JSHtmlCanvasElementType), isTrue);
var div = new Element.tag('div');
expect(js_util.instanceof(div, JSNodeType), isTrue);
expect(js_util.instanceof(div, JSTextType), isFalse);
expect(js_util.instanceof(div, JSElementType), isTrue);
expect(js_util.instanceof(div, JSHtmlCanvasElementType), isFalse);
var text = new Text('foo');
expect(js_util.instanceof(text, JSNodeType), isTrue);
expect(js_util.instanceof(text, JSTextType), isTrue);
expect(js_util.instanceof(text, JSElementType), isFalse);
});
test('typed object', () {
var f = new Foo(42);
expect(js_util.instanceof(f, JSFooType), isTrue);
expect(js_util.instanceof(f, JSNodeType), isFalse);
});
test('typed literal', () {
var l = new ExampleTypedLiteral();
expect(js_util.instanceof(l, JSFooType), isFalse);
});
});
group('callConstructor', () {
test('html object', () {
var textNode = js_util.callConstructor(JSTextType, ['foo']);
expect(js_util.instanceof(textNode, JSTextType), isTrue);
expect(textNode is Text, isTrue);
expect(textNode.text, equals('foo'));
});
test('typed object', () {
Foo f = js_util.callConstructor(JSFooType, [42]);
expect(f.a, equals(42));
});
});
Future<void> testResolvedPromise() async {
final String result = await js_util.promiseToFuture(resolvedPromise);
expect(result, equals('resolved'));
}
Future<void> testRejectedPromise() async {
try {
final String result = await promiseToFuture(rejectedPromise);
fail('expected Future to throw an error');
} catch (error) {
expect(error, equals('rejected'));
}
}
Future<void> testReturnRejectedPromise() async {
final String result = await promiseToFuture(getResolvedPromise());
expect(result, equals('resolved'));
}
asyncTest(() async {
await testResolvedPromise();
await testRejectedPromise();
await testReturnRejectedPromise();
});
}