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