servo/tests/wpt/css-tests/cssom-1_dev/html/css-style-declaration-modifications.htm

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<!DOCTYPE html>
<html><head>
<title>CSS Test: CSSStyleDeclaration Interface</title>
<link href="mailto:betravis@adobe.com" rel="author" title="Bear Travis">
<link href="http://www.w3.org/TR/cssom-1/#the-cssstyledeclaration-interface" rel="help">
<meta content="dom" name="flags">
<meta content="CSSStyleDeclaration is properly initialized and can be modified through its interface" name="assert">
<script src="/resources/testharness.js" type="text/javascript"></script>
<script src="/resources/testharnessreport.js" type="text/javascript"></script>
<style id="styleElement">
#test { color: green; }
</style>
</head>
<body>
<div id="log"></div>
<div id="test"></div>
<script type="text/javascript">
var declaration;
setup(function() {
var styleElement = document.getElementById("styleElement");
declaration = styleElement.sheet.cssRules.item(0).style;
});
test(function() {
assert_equals(declaration.cssText, "color: green;");
assert_equals(declaration.getPropertyValue("color"), "green");
}, "Reading CSSStyleDeclaration initialized from a style element");
test(function() {
declaration.cssText = "margin-left:10px; padding-left:10px";
assert_equals(declaration.cssText, "margin-left: 10px; padding-left: 10px;");
assert_equals(declaration.length, 2);
assert_equals(declaration.item(0), "margin-left");
assert_equals(declaration.item(1), "padding-left");
assert_equals(declaration.getPropertyValue("margin-left"), "10px");
assert_equals(declaration.getPropertyValue("padding-left"), "10px");
var computedStyle = window.getComputedStyle(document.getElementById("test"));
assert_equals(computedStyle.getPropertyValue("margin-left"), "10px");
assert_equals(computedStyle.getPropertyValue("padding-left"), "10px");
}, "Setting CSSStyleDeclaration#cssText");
test(function() {
while (declaration.length > 0) {
declaration.removeProperty(declaration.item(0));
}
declaration.setProperty("margin-left", "15px");
declaration.setProperty("padding-left", "15px");
assert_equals(declaration.length, 2);
assert_equals(declaration.item(0), "margin-left");
assert_equals(declaration.item(1), "padding-left");
assert_equals(declaration.getPropertyValue("margin-left"), "15px");
assert_equals(declaration.getPropertyValue("padding-left"), "15px");
var computedStyle = window.getComputedStyle(document.getElementById("test"));
assert_equals(computedStyle.getPropertyValue("margin-left"), "15px");
assert_equals(computedStyle.getPropertyValue("padding-left"), "15px");
}, "Calling CSSStyleDeclaration#setProperty");
</script>
</body></html>