stream-html-run-scripts-option.html

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This test has a WPT meta file that expects 8 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/dom/partial-updates/tentative/stream-html-run-scripts-option.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<meta charset="utf-8" />

<title>streamAppendHTMLUnsafe with scripts</title>

<link rel=help href="https://github.com/WICG/declarative-partial-updates">

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

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

<div id="placeholder"></div>

<script>

for (const method of ["streamAppendHTMLUnsafe", "streamHTMLUnsafe"]) {

    promise_test(async t => {

        const placeholder = document.getElementById("placeholder");

        const writable = placeholder[method]({runScripts: true});

        const writer = writable.getWriter();

        t.add_cleanup(() => { window.did_run = false });

        await writer.write("<script>window.did_run = true;</" + "script>");

        await writer.close();

        assert_true(window.did_run);

    }, `element.${method} with runScripts: true`);

    promise_test(async t => {

        const placeholder = document.getElementById("placeholder");

        const writable = placeholder[method]({runScripts: false});

        const writer = writable.getWriter();

        t.add_cleanup(() => { window.did_run = false });

        await writer.write("<script>window.did_run = true;</" + "script>");

        await writer.close();

        assert_false(window.did_run);

    }, `element.${method} with runScripts: false`);

    promise_test(async t => {

        const placeholder = document.getElementById("placeholder");

        const element = document.createElement("div");

        placeholder.append(element);

        t.add_cleanup(() => element.remove());

        const shadowRoot = element.attachShadow({mode: "open"});

        const writer = shadowRoot[method]({runScripts: false}).getWriter();

        window.did_run = false;

        await writer.write("<script>window.did_run = true;<" + "/script>");

        await writer.close();

        assert_false(window.did_run);

    }, `shadowRoot.${method} with runScripts: false`);

    promise_test(async t => {

        const placeholder = document.getElementById("placeholder");

        const element = document.createElement("div");

        placeholder.append(element);

        t.add_cleanup(() => element.remove());

        const shadowRoot = element.attachShadow({mode: "open"});

        const writer = shadowRoot[method]({runScripts: true}).getWriter();

        window.did_run = false;

        await writer.write("<script>window.did_run = true;<" + "/script>");

        await writer.close();

        assert_true(window.did_run);

    }, `shadowRoot.${method} with runScripts: true`);

</script>