2d.canvas.context.extraargs.cache.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/canvas-context/2d.canvas.context.extraargs.cache.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.canvas.context.extraargs.cache</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.canvas.context.extraargs.cache</h1>

<p class="desc">The 2D context doesn't throw with extra getContext arguments (cached)</p>

<script>

var t = async_test("The 2D context doesn't throw with extra getContext arguments (cached)");

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');

  _assertDifferent(canvas.getContext('2d', false, {}, [], 1, '2'), null, "canvas.getContext('2d', false, {}, [], 1, '2')", "null");

  _assertDifferent(canvas.getContext('2d', 123), null, "canvas.getContext('2d', 123)", "null");

  _assertDifferent(canvas.getContext('2d', 'test'), null, "canvas.getContext('2d', 'test')", "null");

  _assertDifferent(canvas.getContext('2d', undefined), null, "canvas.getContext('2d', undefined)", "null");

  _assertDifferent(canvas.getContext('2d', null), null, "canvas.getContext('2d', null)", "null");

  _assertDifferent(canvas.getContext('2d', Symbol.hasInstance), null, "canvas.getContext('2d', Symbol.hasInstance)", "null");

  t.done();

});

</script>