security.pattern.fillStyle.sub.html

<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>Canvas test: security.pattern.canvas.fillStyle.cross</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="/common/media.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>

<body>
<p class="desc">Setting fillStyle to a pattern of an unclean canvas makes the canvas origin-unclean</p>

<script>

forEachCanvasSource(get_host_info().HTTP_REMOTE_ORIGIN,
                    get_host_info().HTTP_ORIGIN,
                    (name, factory) => {
  promise_test(_ => {
    return factory().then(source => {
      const canvas = document.createElement('canvas');
      const ctx = canvas.getContext('2d');
      const pattern = ctx.createPattern(source, 'repeat');
      ctx.fillStyle = pattern;
      ctx.fillStyle = 'red';
      assert_throws_dom("SECURITY_ERR", function() { canvas.toDataURL(); });
      assert_throws_dom("SECURITY_ERR", function() { ctx.getImageData(0, 0, 1, 1); });
    });
  }, `${name}: Setting fillStyle to an origin-unclean pattern makes the canvas origin-unclean`);
});

forEachCanvasSource(get_host_info().HTTP_REMOTE_ORIGIN,
                    get_host_info().HTTP_ORIGIN,
                    (name, factory) => {
  promise_test(_ => {
    return factory().then(source => {
      const pattern = new OffscreenCanvas(10, 10)
          .getContext('2d')
          .createPattern(source, 'repeat');

      const canvas = document.createElement('canvas');
      const ctx = canvas.getContext('2d');
      ctx.fillStyle = pattern;
      ctx.fillStyle = 'red';
      assert_throws_dom("SECURITY_ERR", function() { canvas.toDataURL(); });
      assert_throws_dom("SECURITY_ERR", function() { ctx.getImageData(0, 0, 1, 1); });
    });
  }, `${name}: Setting fillStyle to an origin-unclean offscreen canvas pattern makes the canvas origin-unclean`);
});

</script>
chromium/third_party/blink/web_tests/external/wpt/html/semantics/embedded-content/the-canvas-element/security.pattern.fillStyle.sub.html
