Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
55 lines
1.4 KiB
Dart
55 lines
1.4 KiB
Dart
// Copyright (c) 2011, 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 = 2.9
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import 'dart:html';
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import 'package:expect/minitest.dart';
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main() {
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final div = new DivElement();
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final canvas = new CanvasElement(width: 200, height: 200);
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canvas.id = 'testcanvas';
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final element = new Element.html("<div><br/><img/><input/><img/></div>");
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document.body.nodes.addAll([div, canvas, element]);
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var isCanvasElement =
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predicate((x) => x is CanvasElement, 'is a CanvasElement');
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var isImageElement =
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predicate((x) => x is ImageElement, 'is an ImageElement');
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test('query', () {
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Element e = querySelector('#testcanvas');
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expect(e, isNotNull);
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expect(e.id, 'testcanvas');
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expect(e, isCanvasElement);
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expect(e, canvas);
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});
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test('query (None)', () {
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Element e = querySelector('#nothere');
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expect(e, isNull);
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});
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test('queryAll (One)', () {
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List l = querySelectorAll('canvas');
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expect(l.length, 1);
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expect(l[0], canvas);
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});
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test('queryAll (Multiple)', () {
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List l = querySelectorAll('img');
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expect(l.length, 2);
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expect(l[0], isImageElement);
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expect(l[1], isImageElement);
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expect(l[0] == l[1], isFalse);
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});
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test('queryAll (None)', () {
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List l = querySelectorAll('video');
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expect(l.isEmpty, isTrue);
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});
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}
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