| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.drawImage.wrongtype</title> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/common/canvas-tests.js"></script> |
| |
| <h1>2d.drawImage.wrongtype</h1> |
| <p class="desc">Incorrect image types in drawImage do not match any defined overloads, so WebIDL throws a TypeError</p> |
| |
| |
| <script> |
| var t = async_test("Incorrect image types in drawImage do not match any defined overloads, so WebIDL throws a TypeError"); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| assert_throws(new TypeError(), function() { ctx.drawImage(undefined, 0, 0); }); |
| assert_throws(new TypeError(), function() { ctx.drawImage(0, 0, 0); }); |
| assert_throws(new TypeError(), function() { ctx.drawImage("", 0, 0); }); |
| |
| t.done(); |
| |
| }); |
| </script> |
