ladybird/Tests/LibWeb/Text/input/HTML/ShadowRealm-in-ShadowRealm-evaluate-DOM-Event.html

<script src="../include.js"></script>
<script>
    function shadowRealmEvalAsync(realm, asyncBody) {
        return new Promise(realm.evaluate(`
            (resolve, reject) => {
                (async () => {
                    ${asyncBody}
                })().then(resolve, (e) => reject(e.toString()));
            }
        `));
    };

    asyncTest(async done => {
        const outerShadowRealm = new ShadowRealm();

        outerShadowRealm.evaluate(`
            var innerShadowRealm = new ShadowRealm();
        `);

        const outerResult = await shadowRealmEvalAsync(outerShadowRealm, `
            function shadowRealmEvalAsync(realm, asyncBody) {
                return new Promise(realm.evaluate(\`
                    (resolve, reject) => {
                        (async () => {
                            \${asyncBody}
                        })().then(resolve, (e) => reject(e.toString()));
                    }
                \`));
            };

            const innerResult = await shadowRealmEvalAsync(innerShadowRealm, \`
                return new Event("Some event...").type;
            \`);

            return innerResult;
        `);

        println(outerResult);
        done();
    });
</script>