Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- Manifest: dom/canvas/test/mochitest.toml
<!DOCTYPE HTML>
<html>
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body onload="doTest()">
<p id="display">
<canvas id="c" width="1" height="1"></canvas>
<img id="img" src="image_red.png">
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
var c = document.getElementById("c");
var ctx = c.getContext("2d");
var img = document.getElementById("img");
SimpleTest.waitForExplicitFinish();
function doTest() {
ctx.drawImage(img, 0, 0);
img.src = "image_green-1x1.png";
img.onload = function() {
ctx.drawImage(img, 0, 0);
var data = ctx.getImageData(0, 0, 1, 1).data;
is(data[0], 0, "Red channel should be 0");
is(data[1], 255, "Green channel should be 1.0");
is(data[2], 0, "Blue channel should be 0")
is(data[3], 255, "Alpha channel should be opaque");
SimpleTest.finish();
}
}
</script>
</pre>
</body>
</html>