2d.fillStyle.toStringFunctionCallback.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/fill-and-stroke-styles/2d.fillStyle.toStringFunctionCallback.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.fillStyle.toStringFunctionCallback</title>

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

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

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

<h1>2d.fillStyle.toStringFunctionCallback</h1>

<p class="desc">Passing a function in to ctx.fillStyle or ctx.strokeStyle with a toString callback works as specified</p>

<script>

var t = async_test("Passing a function in to ctx.fillStyle or ctx.strokeStyle with a toString callback works as specified");

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');

  ctx.fillStyle = { toString: function() { return "#008000"; } };

  _assertSame(ctx.fillStyle, "#008000", "ctx.fillStyle", "\"#008000\"");

  ctx.fillStyle = {};

  _assertSame(ctx.fillStyle, "#008000", "ctx.fillStyle", "\"#008000\"");

  ctx.fillStyle = 800000;

  _assertSame(ctx.fillStyle, "#008000", "ctx.fillStyle", "\"#008000\"");

  assert_throws_js(TypeError, function() { ctx.fillStyle = { toString: function() { throw new TypeError; } }; });

  ctx.strokeStyle = { toString: function() { return "#008000"; } };

  _assertSame(ctx.strokeStyle, "#008000", "ctx.strokeStyle", "\"#008000\"");

  ctx.strokeStyle = {};

  _assertSame(ctx.strokeStyle, "#008000", "ctx.strokeStyle", "\"#008000\"");

  ctx.strokeStyle = 800000;

  _assertSame(ctx.strokeStyle, "#008000", "ctx.strokeStyle", "\"#008000\"");

  assert_throws_js(TypeError, function() { ctx.strokeStyle = { toString: function() { throw new TypeError; } }; });

  t.done();

});

</script>