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<!doctype html>
<meta charset="utf-8">
<title>CSSUnparsedValue.length</title>
<link rel="help" href="https://drafts.css-houdini.org/css-typed-om-1/#dom-cssunparsedvalue-length">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';
test(() => {
const result = new CSSUnparsedValue([]);
assert_equals(result.length, 0, 'length');
}, 'Length of CSSUnparsedValue with no fragments is zero');
test(() => {
const result = new CSSUnparsedValue([
' ', new CSSVariableReferenceValue('--A')
]);
assert_equals(result.length, 2, 'length');
}, 'Length of CSSUnparsedValue with multiple fragments is the number of ' +
'fragments');
test(() => {
let result = new CSSUnparsedValue([' ']);
assert_equals(result.length, 1, 'initial length');
result[1] = new CSSVariableReferenceValue('--A');
assert_equals(result.length, 2, 'length after appending once');
result[2] = 'lemon';
assert_equals(result.length, 3, 'length after appending twice');
}, 'Length of CSSUnparsedValue updates when fragments are appended');
test(() => {
let result = new CSSUnparsedValue([' ']);
assert_equals(result.length, 1, 'initial length');
result[0] = new CSSVariableReferenceValue('--A');
assert_equals(result.length, 1, 'length after modification');
result[0] = 'lemon';
assert_equals(result.length, 1, 'length after modification');
}, 'Length of CSSUnparsedValue does not change when fragments are modified');
</script>
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