| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.imageData.create2.negative</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/2dcontext/resources/canvas-tests.js"></script> |
| |
| <h1>2d.imageData.create2.negative</h1> |
| <p class="desc">createImageData(sw, sh) takes the absolute magnitude of the size arguments</p> |
| |
| |
| <script> |
| var t = async_test("createImageData(sw, sh) takes the absolute magnitude of the size arguments"); |
| var t_pass = t.done.bind(t); |
| var t_fail = t.step_func(function(reason) { |
| throw reason; |
| }); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| var imgdata1 = ctx.createImageData(10, 20); |
| var imgdata2 = ctx.createImageData(-10, 20); |
| var imgdata3 = ctx.createImageData(10, -20); |
| var imgdata4 = ctx.createImageData(-10, -20); |
| _assertSame(imgdata1.data.length, imgdata2.data.length, "imgdata1.data.length", "imgdata2.data.length"); |
| _assertSame(imgdata2.data.length, imgdata3.data.length, "imgdata2.data.length", "imgdata3.data.length"); |
| _assertSame(imgdata3.data.length, imgdata4.data.length, "imgdata3.data.length", "imgdata4.data.length"); |
| t.done(); |
| |
| }); |
| </script> |
