OLD | NEW |
(Empty) | |
| 1 description("Series of tests for canvas alpha"); |
| 2 |
| 3 var canvas1 = document.getElementById("canvas1"); |
| 4 var canvas2 = document.getElementById("canvas2"); |
| 5 var ctx1 = canvas1.getContext("2d"); |
| 6 var ctx2 = canvas2.getContext("2d", { alpha: false } ); |
| 7 var ctx3 = canvas3.getContext("2d", {} ); |
| 8 var imgData1 = ctx1.getImageData(0, 0, 1, 1); |
| 9 shouldBe("ctx1.getContextAttributes().alpha", "true"); |
| 10 shouldBe("imgData1.data[0]", "0"); |
| 11 shouldBe("imgData1.data[1]", "0"); |
| 12 shouldBe("imgData1.data[2]", "0"); |
| 13 shouldBe("imgData1.data[3]", "0"); |
| 14 var imgData2 = ctx2.getImageData(0, 0, 1, 1); |
| 15 shouldBe("ctx2.getContextAttributes().alpha", "false"); |
| 16 shouldBe("imgData2.data[0]", "0"); |
| 17 shouldBe("imgData2.data[1]", "0"); |
| 18 shouldBe("imgData2.data[2]", "0"); |
| 19 shouldBe("imgData2.data[3]", "255"); |
| 20 var imgData3 = ctx3.getImageData(0, 0, 1, 1); |
| 21 shouldBe("ctx3.getContextAttributes().alpha", "true"); |
| 22 shouldBe("imgData3.data[0]", "0"); |
| 23 shouldBe("imgData3.data[1]", "0"); |
| 24 shouldBe("imgData3.data[2]", "0"); |
| 25 shouldBe("imgData3.data[3]", "0"); |
OLD | NEW |