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4283c3e41e
R=sigmund@google.com Review URL: https://codereview.chromium.org//231413003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@34890 260f80e4-7a28-3924-810f-c04153c831b5
72 lines
2 KiB
Dart
72 lines
2 KiB
Dart
// Copyright (c) 2012, 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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library url_test;
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import 'package:unittest/unittest.dart';
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import 'package:unittest/html_config.dart';
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import 'dart:html';
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import 'dart:typed_data';
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main() {
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useHtmlConfiguration();
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Blob createImageBlob() {
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var canvas = new CanvasElement();
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canvas.width = 100;
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canvas.height = 100;
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var context = canvas.context2D;
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context.fillStyle = 'red';
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context.fillRect(0, 0, canvas.width, canvas.height);
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var dataUri = canvas.toDataUrl('image/png');
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var byteString = window.atob(dataUri.split(',')[1]);
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var mimeString = dataUri.split(',')[0].split(':')[1].split(';')[0];
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var arrayBuffer = new Uint8List(byteString.length);
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var dataArray = new Uint8List.view(arrayBuffer.buffer);
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for (var i = 0; i < byteString.length; i++) {
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dataArray[i] = byteString.codeUnitAt(i);
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}
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var blob = new Blob([arrayBuffer], 'image/png');
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return blob;
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}
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group('blob', () {
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test('createObjectUrlFromBlob', () {
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var blob = createImageBlob();
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var url = Url.createObjectUrlFromBlob(blob);
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expect(url.length, greaterThan(0));
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expect(url, startsWith('blob:'));
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var img = new ImageElement();
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img.onLoad.listen(expectAsync((_) {
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expect(img.complete, true);
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}));
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img.onError.listen((_) {
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fail('URL failed to load.');
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});
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img.src = url;
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});
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test('revokeObjectUrl', () {
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var blob = createImageBlob();
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var url = Url.createObjectUrlFromBlob(blob);
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expect(url, startsWith('blob:'));
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Url.revokeObjectUrl(url);
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var img = new ImageElement();
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// Image should fail to load since the URL was revoked.
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img.onError.listen(expectAsync((_) {
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}));
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img.onLoad.listen((_) {
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fail('URL should not have loaded.');
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});
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img.src = url;
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});
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});
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}
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