blob: 329e8ddb4994e5f0e783697e94eb66310fd8209d [file] [log] [blame]
/*
* Copyright (c) 2014, 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.
*/
/**
* @description Series of tests to ensure correct behaviour of composite on a
* fully transparent color.
*/
import "dart:html";
import "dart:math" as Math;
import "../../testcommon.dart";
import "../../../Utils/async_utils.dart";
main() {
var ctx = createContext2d("canvas");
ctx.globalCompositeOperation = "source-over";
ctx.fillStyle = 'rgba(0,0,0,0)';
ctx.fillRect(0,0,100,100);
ctx.save();
ctx.translate(0,100);
ctx.scale(1,-1);
ctx.fillStyle = 'green';
ctx.fillRect(0,0,100,100);
ctx.restore();
var imageData = ctx.getImageData(1, 1, 98, 98);
var imgdata = imageData.data;
shouldBe(imgdata[4], 0);
shouldBe(imgdata[5], 128);
shouldBe(imgdata[6], 0);
}