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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Values Test: computed value of 8 calc() values that involve mixed units</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<link rel="help" href="https://www.w3.org/TR/css-values-4/#calc-computed-value">
<meta name="flags" content="">
<meta content="This meta-test verifies that terms with a length value that can be resolved at computed-value time must be resolved and must be absolutized to 'px'. In this meta-test, we test percentage unit (%), three font-relative length units (em, rem, lh) and some absolute length units (pc, pt, px, cm, mm, Q, in). " name="assert">
<!--
NOT Tested in this test are:
Viewport-percentage Length units:
vh, svh, lvh, dvh,
vw, svw, lvw, dvw,
vmin, svmin, lvmin, dvmin,
vmax, svmax, lvmax, dvmax,
vi, svi, lvi, dvi,
vb, svb, lvb, dvb
and these of font-relative length units:
ex, rex,
cap, rcap,
ch, rch,
ic, ric,
rlh
-->
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
html
{
font-size: 30px; /* for checking rem unit */
}
body
{
font-size: 16px;
line-height: 1.25; /* computed value: 20px; for checking lh unit */
height: 500px;
margin: 20px;
width: 520px;
}
div#target
{
height: 100px;
width: 100px;
}
</style>
<div id="target"></div>
<script>
function startTesting()
{
var targetElement = document.getElementById("target");
function verifyComputedStyle(property_name, specified_value, expected_value)
{
test(function()
{
targetElement.style.setProperty(property_name, "initial");
targetElement.style.setProperty(property_name, specified_value);
assert_equals(getComputedStyle(targetElement)[property_name], expected_value);
}, `testing ${property_name}: ${specified_value}`);
}
verifyComputedStyle("width", "calc(10% + 2em)", "84px");
/*
520px mult 10% == 52px
+
16px mult 2 == 32px
=======
84px
*/
verifyComputedStyle("width", "calc(5% + 4rem)", "146px");
/*
520px mult 5% == 26px
+
30px mult 4 == 120px
=======
146px
*/
verifyComputedStyle("width", "calc(8lh + 7px)", "167px");
/*
8 mult 20px == 160px
+
7px
=======
167px
*/
verifyComputedStyle("height", "calc(10% + 6pt)", "58px");
/*
10% mult 500 == 50px
+
6pt == 8px
========
58px
*/
verifyComputedStyle("width", "calc(4em + 2.6458333cm)", "164px");
/*
4 mult 16px == 64px
+
2.6458333cm == 100px
========
164px
*/
verifyComputedStyle("height", "calc(5em + 26.458333mm)", "180px");
/*
5 mult 16px == 80px
+
26.458333mm == 100px
========
180px
*/
verifyComputedStyle("width", "calc(2in + 101.6Q)", "288px");
/*
2 mult 96px == 192px
+
101.6Q == 96px
========
288px
*/
verifyComputedStyle("height", "calc(1pc + 3pt)", "20px");
/*
1pc == 16px
+
3pt == 4px
=======
20px
*/
}
startTesting();
</script>
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