chromium/third_party/blink/web_tests/external/wpt/css/css-text-decor/text-shadow/parsing/text-shadow-computed.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text Decoration Test: getComputedStyle().textShadow</title>
<link rel="help" href="https://drafts.csswg.org/css-text-decor-3/#text-shadow-property">
<meta name="assert" content="text-shadow computed value is none or a list, each item a color and lengths.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/computed-testcommon.js"></script>
<style>
  #target {
    font-size: 40px;
    color: blue;
  }
</style>
<div id="target"></div>
<script>
'use strict';
const red = 'rgb(255, 0, 0)';
const lime = 'rgb(0, 255, 0)';
const currentColor = 'rgb(0, 0, 255)';

test_computed_value("text-shadow", "none");

test_computed_value("text-shadow", "10px 20px", currentColor + " 10px 20px 0px");
test_computed_value("text-shadow", "red 10px 20px 30px", red + " 10px 20px 30px");
test_computed_value("text-shadow", "calc(0.5em + 10px) calc(0.5em + 10px) calc(0.5em + 10px)", currentColor + " 30px 30px 30px");
test_computed_value("text-shadow", "calc(-0.5em + 10px) calc(-0.5em + 10px) calc(-0.5em + 10px)", currentColor + " -10px -10px 0px");

test_computed_value("text-shadow", "10px 20px, 30px 40px", currentColor + " 10px 20px 0px, " + currentColor + " 30px 40px 0px");
test_computed_value("text-shadow", "lime 10px 20px 30px, red 40px 50px", lime + " 10px 20px 30px, " + red + " 40px 50px 0px");
</script>