2d.filter.canvasFilterObject.tentative.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:
- /html/canvas/offscreen/filters/2d.filter.canvasFilterObject.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->

<meta charset="UTF-8">

<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>