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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.
// @dart = 2.9
// Tests the functionality of js_util with HTML objects.
library js_util_test;
import 'dart:html';
import 'package:js/js.dart';
import 'package:js/js_util.dart' as js_util;
import 'package:expect/minitest.dart';
external void eval(String code);
external get JSNodeType;
external get JSElementType;
external get JSTextType;
external get JSHtmlCanvasElementType;
class Foo {
external Foo();
main() {
eval(r""" function Foo() {} """);
test('hasProperty', () {
var textElement = new Text('foo');
expect(js_util.hasProperty(textElement, 'data'), isTrue);
test('getProperty', () {
var textElement = new Text('foo');
expect(js_util.getProperty(textElement, 'data'), equals('foo'));
test('setProperty', () {
var textElement = new Text('foo');
js_util.setProperty(textElement, 'data', 'bar');
expect(textElement.text, equals('bar'));
test('callMethod', () {
var canvas = new CanvasElement();
js_util.callMethod(canvas, 'getContext', ['2d'])),
test('instanceof', () {
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);
var f = new Foo();
expect(js_util.instanceof(f, JSNodeType), isFalse);
test('callConstructor', () {
var textNode = js_util.callConstructor(JSTextType, ['foo']);
expect(js_util.instanceof(textNode, JSTextType), isTrue);
expect(textNode is Text, isTrue);
expect(textNode.text, equals('foo'));