blob: 69f55ad1c4fc8e882a9ca261d459a197a27d4317 [file] [log] [blame]
// Copyright (c) 2012, 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.
library url_test;
import 'package:unittest/unittest.dart';
import 'package:unittest/html_config.dart';
import 'dart:html';
import 'dart:typed_data';
main() {
useHtmlConfiguration();
Blob createImageBlob() {
var canvas = new CanvasElement();
canvas.width = 100;
canvas.height = 100;
var context = canvas.context2D;
context.fillStyle = 'red';
context.fillRect(0, 0, canvas.width, canvas.height);
var dataUri = canvas.toDataUrl('image/png');
var byteString = window.atob(dataUri.split(',')[1]);
var mimeString = dataUri.split(',')[0].split(':')[1].split(';')[0];
var arrayBuffer = new Uint8List(byteString.length);
var dataArray = new Uint8List.view(arrayBuffer.buffer);
for (var i = 0; i < byteString.length; i++) {
dataArray[i] = byteString.codeUnitAt(i);
}
var blob = new Blob([arrayBuffer], 'image/png');
return blob;
}
group('blob', () {
test('createObjectUrlFromBlob', () {
var blob = createImageBlob();
var url = Url.createObjectUrlFromBlob(blob);
expect(url.length, greaterThan(0));
expect(url, startsWith('blob:'));
var img = new ImageElement();
img.onLoad.listen(expectAsync((_) {
expect(img.complete, true);
}));
img.onError.listen((_) {
fail('URL failed to load.');
});
img.src = url;
});
test('revokeObjectUrl', () {
var blob = createImageBlob();
var url = Url.createObjectUrlFromBlob(blob);
expect(url, startsWith('blob:'));
Url.revokeObjectUrl(url);
var img = new ImageElement();
// Image should fail to load since the URL was revoked.
img.onError.listen(expectAsync((_) {
}));
img.onLoad.listen((_) {
fail('URL should not have loaded.');
});
img.src = url;
});
});
}