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// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.shadow.image.alpha
// Description:Shadows are drawn correctly for partially-transparent images
// Note:
importScripts("/resources/testharness.js");
importScripts("/html/canvas/resources/canvas-tests.js");
var t = async_test("Shadows are drawn correctly for partially-transparent images");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
throw reason;
});
t.step(function() {
var canvas = new OffscreenCanvas(100, 50);
var ctx = canvas.getContext('2d');
ctx.fillStyle = '#f00';
ctx.fillRect(0, 0, 100, 50);
ctx.shadowOffsetY = 50;
ctx.shadowColor = '#00f';
var promise = new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open("GET", '/images/transparent50.png');
xhr.responseType = 'blob';
xhr.send();
xhr.onload = function() {
resolve(xhr.response);
};
});
promise.then(function(response) {
createImageBitmap(response).then(bitmap => {
ctx.drawImage(bitmap, 0, -50);
_assertPixelApprox(canvas, 50,25, 127,0,127,255, 2);
}, t_fail);
}).then(t_pass, t_fail);
});
done();
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