async-write-html-read-html.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /clipboard-apis/async-write-html-read-html.https.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>

  Async Clipboard write ([text/html ClipboardItem]) -> readHtml tests

</title>

<link rel="help" href="https://w3c.github.io/clipboard-apis/#async-clipboard-api">

<body>Body needed for test_driver.click()</body>

<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/user-activation.js"></script>

<script>

'use strict';

// This function removes extra spaces between tags in html. For example, the

// following html: "<p> Hello </p>   <body> World </body>" would turn into this

//           html: "<p> Hello </p> <body> World </body>"

// We remove the extra spaces because in html they are considered equivalent,

// but when we are comparing for equality the spaces make a difference.

function reformatHtml(html) {

  const parser = new DOMParser();

  const parsedHtml = parser.parseFromString(html, 'text/html')

  // FIXME: The specification is ambiguous on what needs to be preserved.

  // see https://github.com/w3c/clipboard-apis/issues/233

  // This is an attempt at a more canonical form.

  // Remove the head - not visible to users.

  // Remove the styling attribute if present.

  const headElement = parsedHtml.head;

  if (headElement) { headElement.remove(); }

  // Remove the eventual style attributes

  const elementsWithStyleAttribute = parsedHtml.querySelectorAll('[style]');

  elementsWithStyleAttribute.forEach((element) => { element.removeAttribute('style'); });

  const htmlString = parsedHtml.documentElement.innerHTML;

  // Remove multiple spaces and returns and replacing by one

  // trim leading and tailing white spaces

  const reformattedString = htmlString.replace(/\>[\s\n]*\</g, '> <').trim();

  return reformattedString;

async function readWriteTest(textInput) {

  await tryGrantReadPermission();

  await tryGrantWritePermission();

  const blobInput = new Blob([textInput], {type: 'text/html'});

  const clipboardItem = new ClipboardItem({'text/html': blobInput});

  await waitForUserActivation();

  await navigator.clipboard.write([clipboardItem]);

  await waitForUserActivation();

  const clipboardItems = await navigator.clipboard.read({type: 'text/html'});

  const html = clipboardItems[0];

  assert_equals(html.types.length, 1);

  assert_equals(html.types[0], 'text/html');

  const blobOutput = await html.getType('text/html');

  assert_equals(blobOutput.type, 'text/html');

  const blobText = await (new Response(blobOutput)).text();

  const outputHtml = reformatHtml(blobText);

  const inputHtml = reformatHtml(textInput);

  assert_equals(outputHtml, inputHtml);

const testCases = [`<!doctype html> <html> <head> <title>Title of the

                    document</title> </head> <body> <p>Hello World</p>

                    </body> </html>`,

                   '<title>Title of the document</title> <p>Hello World</p>'];

promise_test(async t => {

  for (const testCase of testCases) {

    await readWriteTest(testCase);

}, 'Verify read and write of some text/html content');

</script>