block-string-assignment-to-Element-setHTMLUnsafe.html

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This WPT test may be referenced by the following Test IDs:
- /trusted-types/block-string-assignment-to-Element-setHTMLUnsafe.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

  <meta name="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com">

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

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

  <script src="support/helper.sub.js"></script>

  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">

</head>

<body>

<div id="container"></div>

<script>

  var container = document.querySelector('#container')

  // TrustedHTML assignments do not throw.

  test(t => {

    let p = createHTML_policy(window, 1);

    let html = p.createHTML(INPUTS.HTML);

    var d = document.createElement('div');

    document.querySelector('#container').appendChild(d);

    d.setHTMLUnsafe(html);

    assert_equals(container.innerText, RESULTS.HTML);

    while (container.firstChild)

      container.firstChild.remove();

  }, "element.setHTMLUnsafe(html) assigned via policy (successful HTML transformation).");

  // String assignments throw.

  test(t => {

    var d = document.createElement('div');

    container.appendChild(d);

    assert_throws_js(TypeError, _ => {

      d.setHTMLUnsafe("Fail");

});

    assert_equals(container.innerText, "");

    while (container.firstChild)

      container.firstChild.remove();

  }, "`element.setHTMLUnsafe(string)` throws.");

  // Null assignment throws.

  test(t => {

    var d = document.createElement('div');

    container.appendChild(d);

    assert_throws_js(TypeError, _ => {

      d.outerHTML = null;

});

    assert_equals(container.innerText, "");

    while (container.firstChild)

      container.firstChild.remove();

  }, "`element.setHTMLUnsafe(null)` throws.");

  // After default policy creation string assignment implicitly calls createHTML.

  test(t => {

    let p = window.trustedTypes.createPolicy("default", { createHTML: createHTMLJS }, true);

    var d = document.createElement('div');

    document.querySelector('#container').appendChild(d);

    d.setHTMLUnsafe(INPUTS.HTML);

    assert_equals(container.innerText, RESULTS.HTML);

    while (container.firstChild)

      container.firstChild.remove();

  }, "`element.setHTMLUnsafe(string)` assigned via default policy (successful HTML transformation).");

  // After default policy creation null assignment implicitly calls createHTML.

  test(t => {

    var d = document.createElement('div');

    container.appendChild(d);

    d.setHTMLUnsafe(null);

    assert_equals(container.innerText, "null");

    while (container.firstChild)

      container.firstChild.remove();

  }, "`element.setHTMLUnsafe(string)` assigned via default policy does not throw");

</script>

</body>

</html>