LayoutTests/requestidlecallback/requestidlecallback-in-page-cache.html

<!DOCTYPE html><!-- webkit-test-runner [ RequestIdleCallbackEnabled=true UsesBackForwardCache=true ] -->
<html>
<body>
<script src="../resources/js-test.js"></script>
<script>

description('This tests that when requestIdleCallback is not enabled, requestIdleCallback and IdleDeadline are not defined.');
jsTestIsAsync = true;

const iframe = document.createElement('iframe');
document.body.appendChild(iframe);

const logsA = [];
const logsB = [];

window.addEventListener("pageshow", function(event) {
    if (!event.persisted)
        return;

    shouldBeTrue('event.persisted');
    shouldBe('logsA.length', '0');
    shouldBe('logsB.length', '0');
    iframe.contentWindow.requestIdleCallback(() => logsB.push('B3'));
    requestIdleCallback(() => logsA.push('A4'));
    setTimeout(() => {
        requestIdleCallback(() => {
            iframe.contentWindow.requestIdleCallback(() => {
                shouldBe('logsA.length', '4');
                shouldBeEqualToString('logsA.join(", ")', 'A1, A2, A3, A4');
                shouldBe('logsB.length', '3');
                shouldBeEqualToString('logsB.join(", ")', 'B1, B2, B3');
                finishJSTest();
            });
        });
    }, 100);
});

window.addEventListener("pagehide", function(event) {
    requestIdleCallback(() => logsA.push('A1'));
    iframe.contentWindow.requestIdleCallback(() => logsB.push('B1'));
    requestIdleCallback(() => logsA.push('A2'));
    iframe.contentWindow.requestIdleCallback(() => logsB.push('B2'));
    requestIdleCallback(() => logsA.push('A3'));
});

onload = () => {
    setTimeout(() => {
        window.location = 'resources/page-cache-helper.html';
    }, 0);
}

</script>
</body>
</html>