has-sibling.html - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /css/selectors/invalidation/has-sibling.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>CSS Selector Invalidation: :has() with sibling combinator argument</title>

<link rel="author" title="Antti Koivisto" href="mailto:antti@apple.com">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<link rel="help" href="https://drafts.csswg.org/selectors/#relational">

<style>

div, main { color: grey }

#subject:has(~ .test) { color: red }

#subject:has(+ .test) { color: green }

#subject:has(~ div .test) { color: blue }

#subject:has(~ div > .test) { color: purple }

#subject:has(+ div .test) { color: yellow }

#subject:has(+ div > .test) { color: pink }

</style>

<main id=main>

    <div id=subject></div>

    <div id=first_sibling>

        <div id=first_sibling_child>

            <div id=first_sibling_descendant></div>

        </div>

    </div>

    <div id=second_sibling></div>

    <div id=third_sibling>

        <div id=third_sibling_child>

            <div id=third_sibling_descendant></div>

        </div>

    </div>

</main>

<script>

const grey = 'rgb(128, 128, 128)';

const red = 'rgb(255, 0, 0)';

const green = 'rgb(0, 128, 0)';

const blue = 'rgb(0, 0, 255)';

const yellow = 'rgb(255, 255, 0)';

const purple = 'rgb(128, 0, 128)';

const pink = 'rgb(255, 192, 203)';

function testColor(test_name, color) {

    test(function() {

        assert_equals(getComputedStyle(subject).color, color);

    }, test_name);

function testClassChange(element, expectedColor)

    element.classList.add('test');

    testColor(`add .test to ${element.id}`, expectedColor);

    element.classList.remove('test');

    testColor(`remove .test from ${element.id}`, grey);

function testElementInsertionBefore(beforeElement, expectedColor)

    const newElement = document.createElement('div');

    newElement.classList.add('test')

    beforeElement.before(newElement);

    testColor(`insert element div.test before ${beforeElement.id}`, expectedColor);

    newElement.remove();

    testColor(`remove element div.test before ${beforeElement.id}`, grey);

function testElementInsertionAfter(afterElement, expectedColor)

    const newElement = document.createElement('div');

    newElement.classList.add('test')

    afterElement.after(newElement);

    testColor(`insert element div.test after ${afterElement.id}`, expectedColor);

    newElement.remove();

    testColor(`remove element div.test after ${afterElement.id}`, grey);

function testTreeInsertionBefore(beforeElement, expectedColor)

    const newElement = document.createElement('div');

    const newChild = document.createElement('div');

    newChild.classList.add('test');

    newElement.appendChild(newChild);

    beforeElement.before(newElement);

    testColor(`insert tree div>div.test before ${beforeElement.id}`, expectedColor);

    newElement.remove();

    testColor(`remove tree div>div.test before ${beforeElement.id}`, grey);

function testTreeInsertionAfter(afterElement, expectedColor)

    const newElement = document.createElement('div');

    const newChild = document.createElement('div');

    newChild.classList.add('test');

    newElement.appendChild(newChild);

    afterElement.after(newElement);

    testColor(`insert tree div>div.test after ${afterElement.id}`, expectedColor);

    newElement.remove();

    testColor(`remove tree div>div.test after ${afterElement.id}`, grey);

testColor('initial_color', grey);

testClassChange(first_sibling, green);

testClassChange(second_sibling, red);

testClassChange(third_sibling, red);

testClassChange(first_sibling_child, pink);

testClassChange(first_sibling_descendant, yellow);

testClassChange(third_sibling_child, purple);

testClassChange(third_sibling_descendant, blue);

testElementInsertionBefore(first_sibling, green);

testElementInsertionBefore(second_sibling, red);

testElementInsertionBefore(third_sibling, red);

testElementInsertionBefore(first_sibling_child, pink);

testElementInsertionBefore(first_sibling_descendant, yellow);

testElementInsertionBefore(third_sibling_child, purple);

testElementInsertionBefore(third_sibling_descendant, blue);

testElementInsertionAfter(first_sibling, red);

testElementInsertionAfter(second_sibling, red);

testElementInsertionAfter(third_sibling, red);

testElementInsertionAfter(first_sibling_child, pink);

testElementInsertionAfter(first_sibling_descendant, yellow);

testElementInsertionAfter(third_sibling_child, purple);

testElementInsertionAfter(third_sibling_descendant, blue);

testTreeInsertionBefore(first_sibling, pink);

testTreeInsertionBefore(second_sibling, purple);

testTreeInsertionBefore(third_sibling, purple);

testTreeInsertionBefore(first_sibling_child, yellow);

testTreeInsertionBefore(first_sibling_descendant, yellow);

testTreeInsertionBefore(third_sibling_child, blue);

testTreeInsertionBefore(third_sibling_descendant, blue);

testTreeInsertionAfter(first_sibling, purple);

testTreeInsertionAfter(second_sibling, purple);

testTreeInsertionAfter(third_sibling, purple);

testTreeInsertionAfter(first_sibling_child, yellow);

testTreeInsertionAfter(first_sibling_descendant, yellow);

testTreeInsertionAfter(third_sibling_child, blue);

testTreeInsertionAfter(third_sibling_descendant, blue);

</script>