<!DOCTYPE html>
<meta charset="utf-8">
<title>Hit-testing on pseudo elements of inert nodes</title>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<style>
#target::before {
    content: "";
    width: 50px;
    height: 50px;
    background-color: green;
    display: inline-block;
}

#target:hover::before,
#target:active::before {
    background-color: red;
}
</style>
<p>Manual test: hover the green square, pass if it does not turn red.</p>
<div id="target" inert></div>
<script>
const events = [
    "mousedown", "mouseenter", "mousemove", "mouseover",
    "pointerdown", "pointerenter", "pointermove", "pointerover",
];
async function mouseDownAndGetEvents(test) {
    const receivedEvents = [];
    for (let event of events) {
        target.addEventListener(event, () => {
            receivedEvents.push(event);
        }, { once: true, capture: true });
    }

    let targetRect = target.getBoundingClientRect();
    await new test_driver.Actions()
        .pointerMove(targetRect.x + 1, targetRect.y + 1, { origin: "viewport" })
        .pointerDown()
        .send();
    test.add_cleanup(() => test_driver.click(document.body));

    // Exact order of events is not interoperable.
    receivedEvents.sort();
    return receivedEvents;
}
promise_test(async function() {
    const receivedEvents = await mouseDownAndGetEvents(this);
    assert_array_equals(receivedEvents, [], "target got no event");
    assert_false(target.matches(":active"), "target is not active");
    assert_false(target.matches(":hover"), "target is not hovered");
    assert_equals(getComputedStyle(target, "::before").backgroundColor, "rgb(0, 128, 0)", "#target::before has no hover style");
}, "Hit-testing cannot reach pseudo elements of inert nodes");

promise_test(async function() {
    target.inert = false;
    const receivedEvents = await mouseDownAndGetEvents(this);
    assert_array_equals(receivedEvents, events, "target got all events");
    assert_true(target.matches(":active"), "target is active");
    assert_true(target.matches(":hover"), "target is hovered");
    assert_equals(getComputedStyle(target, "::before").backgroundColor, "rgb(255, 0, 0)", "#target::before has hover style");
}, "Hit-testing can reach pseudo elements of non-inert nodes");
</script>
