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css-variable-change-style-002.html
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<!DOCTYPE html>
<metacharset="utf-8">
<title>CSS Variables Test: Style changes on properties using variables</title>
<linkrel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
<linkrel="help" href="http://www.w3.org/TR/css-variables-1/#using-variables">
<metaname="assert" content="A change in the custom property declaration must be propagated to all the descendants">
<scriptsrc="/resources/testharness.js"></script>
<scriptsrc="/resources/testharnessreport.js"></script>
<style>
.test1>div>div { color:var(--x); }
.test2>div>div { background-color:var(--x); }
.test3>div>div { white-space:var(--x); }
</style>
<divid="outer">
<div>
<divid="inner1"></div>
</div>
<div>
<divid="inner2"></div>
</div>
<div>
<divid="inner3"></div>
</div>
</div>
<script>
"use strict";
letcolorValues=[
{Id: "case1",value: "red",expected: "rgb(255, 0, 0)"},
{Id: "case2",value: "green",expected: "rgb(0, 128, 0)"},
];
letwhiteSpaceValues=[
{Id: "case1",value: "pre-wrap",expected: "pre-wrap"},
{Id: "case2",value: "nowrap",expected: "nowrap"},
];
lettestcases=[
{property: "color",className: "test1",values: colorValues,},
{property: "background-color",className: "test2",values: colorValues,},
{property: "white-space",className: "test3",values: whiteSpaceValues},
];
testcases.forEach(function(testcase){
test(function(){
outer.className=testcase.className;
testcase.values.forEach(function(entry){
document.body.style.cssText="--x: "+entry.value;
letactualValue=getComputedStyle(inner1).getPropertyValue(testcase.property);
assert_equals(actualValue,entry.expected,entry.Id+"-1");
actualValue=getComputedStyle(inner2).getPropertyValue(testcase.property);
assert_equals(actualValue,entry.expected,entry.Id+"-2");
actualValue=getComputedStyle(inner3).getPropertyValue(testcase.property);
assert_equals(actualValue,entry.expected,entry.Id+"-3");
});
},"Declaration changes on '"+testcase.property+"' propagate to all variable references");
});
</script>
