gecko-dev/layout/style/test/test_background_blend_mode.html

59 lines
2.0 KiB
HTML

<!DOCTYPE HTML>
<html>
<head>
<title>Test for miscellaneous computed style issues</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
/** Test for miscellaneous computed style issues **/
var frame_container = document.getElementById("display");
var noframe_container = document.getElementById("content");
function test_bug_841601() {
// Test handling of background-blend-mode
var p = document.createElement("p");
var cs = getComputedStyle(p, "");
frame_container.appendChild(p);
is(cs.backgroundBlendMode, "normal",
"default value of background-blend-mode");
p.setAttribute("style", "background-blend-mode: normal, invalid");
cs = getComputedStyle(p, "");
is(cs.backgroundBlendMode, "normal",
"set invalid blendmode");
p.setAttribute("style", "background-blend-mode: normal, normal");
cs = getComputedStyle(p, "");
is(cs.backgroundBlendMode, "normal, normal",
"set normal blendmode twice");
p.setAttribute("style", "background-blend-mode: normal, multiply, screen, overlay, darken, lighten, color-dodge, color-burn, hard-light, soft-light, difference, exclusion, hue, saturation, color, luminosity");
cs = getComputedStyle(p, "");
is(cs.backgroundBlendMode, "normal, multiply, screen, overlay, darken, lighten, color-dodge, color-burn, hard-light, soft-light, difference, exclusion, hue, saturation, color, luminosity",
"set all blendmodes");
p.parentNode.removeChild(p);
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({ "set": [["layout.css.background-blend-mode.enabled", true]] },
test_bug_841601);
</script>
</pre>
</body>
</html>