2d.filter.canvasFilterObject.tentative.html

<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.filter.canvasFilterObject.tentative</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.filter.canvasFilterObject.tentative</h1>
<p class="desc">Test CanvasFilter() object</p>


<script>
var t = async_test("Test CanvasFilter() object");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
    throw reason;
});
t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);
  var ctx = canvas.getContext('2d');

  _assert(ctx.filter == 'none', "ctx.filter == 'none'");
  ctx.filter = 'blur(5px)';
  _assert(ctx.filter == 'blur(5px)', "ctx.filter == 'blur(5px)'");
  ctx.filter = new CanvasFilter({name: 'gaussianBlur', stdDeviation: 5});
  _assert(ctx.filter.toString() == '[object CanvasFilter]', "ctx.filter.toString() == '[object CanvasFilter]'");
  ctx.filter = new CanvasFilter({name: 'gaussianBlur', stdDeviation: [1, 2]});
  _assert(ctx.filter.toString() == '[object CanvasFilter]', "ctx.filter.toString() == '[object CanvasFilter]'");
  ctx.filter = new CanvasFilter([
      {name: 'gaussianBlur', stdDeviation: 5},
      {name: 'gaussianBlur', stdDeviation: 10}
  ]);
  _assert(ctx.filter.toString() == '[object CanvasFilter]', "ctx.filter.toString() == '[object CanvasFilter]'");
  var canvas2 = new OffscreenCanvas(100, 50);
  var ctx2 = canvas2.getContext('2d');
  ctx2.filter = ctx.filter;
  _assert(ctx.filter.toString() == '[object CanvasFilter]', "ctx.filter.toString() == '[object CanvasFilter]'");
  ctx.filter = 'blur(5px)';
  _assert(ctx.filter == 'blur(5px)', "ctx.filter == 'blur(5px)'");
  ctx.filter = 'none';
  _assert(ctx.filter == 'none', "ctx.filter == 'none'");
  ctx.filter = new CanvasFilter({name: 'gaussianBlur', stdDeviation: 5});
  ctx.filter = 'this string is not a filter and should do nothing';
  _assert(ctx.filter.toString() == '[object CanvasFilter]', "ctx.filter.toString() == '[object CanvasFilter]'");
  t.done();

});
</script>
chromium/third_party/blink/web_tests/external/wpt/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.tentative.html
