<!doctype html>
<meta charset="utf-8">
<title>
  Async Clipboard write ([image/svg+xml ClipboardItem]) -> readSvg (and remove scripts) tests
</title>
<link rel="help" href="https://w3c.github.io/clipboard-apis/#async-clipboard-api">
<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>
'use strict';
// This function removes extra spaces between tags in svg. For example, the
// following svg: "<svg> <g> </g>     </svg>" would turn into this
//           svg: "<svg> <g> </g> </svg>"
// We remove the extra spaces because in svg they are considered equivalent,
// but when we are comparing for equality the spaces make a difference.
function reformatSvg(svg) {
  const parser = new DOMParser();
  const svgString =
    parser.parseFromString(svg, 'text/html').documentElement.innerHTML;
  const reformattedString = svgString.replace(/\>\s*\</g, '> <');
  return reformattedString;
}

// The string must be concatenated in this way because the html parser
// will recognize a script tag even in quotes as a real script tag. By
// splitting it up in this way we avoid that error.
const svg_with_script =
  `<svg> <script>const a = 5;</scr' + 'ipt>
   <a href="javascript:alert(2)"> test </a> </svg>`;
const svg_without_script =
  `<svg> </svg>`;
promise_test(async t => {
  await test_driver.set_permission({name: 'clipboard-read'}, 'granted');
  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
  const blobInput = new Blob([svg_with_script], {type: 'image/svg+xml'});
  const clipboardItem = new ClipboardItem({'image/svg+xml': blobInput});
  await navigator.clipboard.write([clipboardItem]);
  const clipboardItems =
      await navigator.clipboard.read({type: 'image/svg+xml'});

  const svg = clipboardItems[0];
  assert_equals(svg.types.length, 1);
  assert_equals(svg.types[0], 'image/svg+xml');

  const blobOutput = await svg.getType('image/svg+xml');
  assert_equals(blobOutput.type, 'image/svg+xml');

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

  const outputSvg = reformatSvg(blobText);
  const inputSvg = reformatSvg(svg_without_script);
  assert_equals(outputSvg, inputSvg);
}, 'Verify write and read clipboard with scripts removed given image/svg+xml: '
    + svg_with_script);
</script>