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<!DOCTYPE html>
<meta charset="utf-8">
<link rel="help" href="https://drafts.csswg.org/css-text-4/#text-autospace-property">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../support/get-char-advances.js"></script>
<style>
.test {
font-family: Ahem;
font-size: 40px;
}
.no-autospace {
text-autospace: no-autospace;
}
</style>
<div id="container">
<div class="test" expect="1,3">国国XX国</div>
<div class="test" expect="3">国。XX国</div>
<div dir="rtl" class="test" expect="1,3">国国XX国</div>
<div dir="rtl" class="test" expect="3">国。XX国</div>
<div class="test" expect="1,3"><span>国国11国</span></div>
</div>
<script>
// Compute expected advances from advances without `text-autospace` and the
// `expect` attribute.
const container = document.getElementById('container');
container.classList.add('no-autospace');
const tests = [];
for (const element of document.getElementsByClassName('test')) {
const em = parseFloat(getComputedStyle(element).fontSize);
const spacing = em / 8;
const advances = getCharAdvances(element);
const expect = element.getAttribute('expect').split(',').map(i => parseInt(i));
for (const i of expect) {
advances[i] += spacing;
}
tests.push({element: element, advances: advances});
}
// Apply `text-autospace` and compare the actual advances.
container.classList.remove('no-autospace');
for (const t of tests) {
const advances = getCharAdvances(t.element);
test(() => {
assert_array_equals(advances, t.advances);
})
}
</script>
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