<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.gradient.radial.negative</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>

<h1>2d.gradient.radial.negative</h1>
<p class="desc">createRadialGradient() throws INDEX_SIZE_ERR if either radius is negative</p>


<script>
var t = async_test("createRadialGradient() throws INDEX_SIZE_ERR if either radius is negative");
t.step(function() {

var offscreenCanvas = new OffscreenCanvas(100, 50);
var ctx = offscreenCanvas.getContext('2d');

assert_throws("INDEX_SIZE_ERR", function() { ctx.createRadialGradient(0, 0, -0.1, 0, 0, 1); });
assert_throws("INDEX_SIZE_ERR", function() { ctx.createRadialGradient(0, 0, 1, 0, 0, -0.1); });
assert_throws("INDEX_SIZE_ERR", function() { ctx.createRadialGradient(0, 0, -0.1, 0, 0, -0.1); });

t.done();

});
</script>