<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Variables Test: Style changes on properties using variables</title>
<link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:[email protected]">
<link rel="help" href="http://www.w3.org/TR/css-variables-1/#using-variables">
<meta name="assert" content="A change in the custom property declaration must be propagated to all the descendants">
<script src="/resources/testharness.js"></script>
<script src="/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>
<div id="outer">
<div>
<div id="inner1"></div>
</div>
<div>
<div id="inner2"></div>
</div>
<div>
<div id="inner3"></div>
</div>
</div>
<script>
"use strict";
let colorValues = [
{ Id: "case1", value: "red", expected: "rgb(255, 0, 0)" },
{ Id: "case2", value: "green", expected: "rgb(0, 128, 0)" },
];
let whiteSpaceValues = [
{ Id: "case1", value: "pre-wrap", expected: "pre-wrap" },
{ Id: "case2", value: "nowrap", expected: "nowrap" },
];
let testcases = [
{ 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;
let actualValue = 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>
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