<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.filter.canvasFilterObject.blur.exceptions.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.blur.exceptions.tentative</h1>
<p class="desc">Test exceptions on CanvasFilter() blur.object</p>


<script>
var t = async_test("Test exceptions on CanvasFilter() blur.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_throws_js(TypeError, function() { ctx.filter = new CanvasFilter({filter: 'gaussianBlur'}); });
  assert_throws_js(TypeError, function() { ctx.filter = new CanvasFilter({filter: 'gaussianBlur', stdDeviation: undefined}); });
  assert_throws_js(TypeError, function() { ctx.filter = new CanvasFilter({filter: 'gaussianBlur', stdDeviation: 'foo'}); });
  assert_throws_js(TypeError, function() { ctx.filter = new CanvasFilter({filter: 'gaussianBlur', stdDeviation: [1,2]}); });
  assert_throws_js(TypeError, function() { ctx.filter = new CanvasFilter({filter: 'gaussianBlur', stdDeviation: NaN}); });
  assert_throws_js(TypeError, function() { ctx.filter = new CanvasFilter({filter: 'gaussianBlur', stdDeviation: {}}); });
  t.done();

});
</script>
