mirror of
https://github.com/servo/servo.git
synced 2025-06-23 16:44:33 +01:00
29 lines
869 B
JavaScript
29 lines
869 B
JavaScript
// DO NOT EDIT! This test has been generated by tools/gentest.py.
|
|
// OffscreenCanvas test in a worker:2d.composite.globalAlpha.range
|
|
// Description:
|
|
// Note:
|
|
|
|
importScripts("/resources/testharness.js");
|
|
importScripts("/common/canvas-tests.js");
|
|
|
|
var t = async_test("");
|
|
t.step(function() {
|
|
|
|
var offscreenCanvas = new OffscreenCanvas(100, 50);
|
|
var ctx = offscreenCanvas.getContext('2d');
|
|
|
|
ctx.globalAlpha = 0.5;
|
|
var a = ctx.globalAlpha; // might not be exactly 0.5, if it is rounded/quantised, so remember for future comparisons
|
|
ctx.globalAlpha = 1.1;
|
|
_assertSame(ctx.globalAlpha, a, "ctx.globalAlpha", "a");
|
|
ctx.globalAlpha = -0.1;
|
|
_assertSame(ctx.globalAlpha, a, "ctx.globalAlpha", "a");
|
|
ctx.globalAlpha = 0;
|
|
_assertSame(ctx.globalAlpha, 0, "ctx.globalAlpha", "0");
|
|
ctx.globalAlpha = 1;
|
|
_assertSame(ctx.globalAlpha, 1, "ctx.globalAlpha", "1");
|
|
|
|
t.done();
|
|
|
|
});
|
|
done();
|