| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.gradient.object.invalidoffset</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/common/canvas-tests.js"></script> |
| |
| <h1>2d.gradient.object.invalidoffset</h1> |
| <p class="desc"></p> |
| |
| |
| <script> |
| var t = async_test(""); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| var g = ctx.createLinearGradient(0, 0, 100, 0); |
| assert_throws("INDEX_SIZE_ERR", function() { g.addColorStop(-1, '#000'); }); |
| assert_throws("INDEX_SIZE_ERR", function() { g.addColorStop(2, '#000'); }); |
| assert_throws(new TypeError(), function() { g.addColorStop(Infinity, '#000'); }); |
| assert_throws(new TypeError(), function() { g.addColorStop(-Infinity, '#000'); }); |
| assert_throws(new TypeError(), function() { g.addColorStop(NaN, '#000'); }); |
| |
| t.done(); |
| |
| }); |
| </script> |
