1 description("Series of tests to ensure correct behaviour of the ImageData object");
3 imageData = document.getElementById("canvas").getContext("2d").getImageData(0,0,2,2);
5 shouldBe("imageData.width", "2");
6 shouldBe("imageData.height", "2");
7 shouldBe("imageData.data.length", "16");
8 for (var i = 0; i < imageData.data.length; i++)
9 shouldBe("imageData.data["+i+"]", "0");
11 var testValues = [NaN, true, false, "\"garbage\"", "-1",
12 "\"0\"", "\"1\"", "\"2\"", Infinity, -Infinity,
14 5.4, 255, 256, null, undefined];
15 var testResults = [0, 1, 0, 0, 0,
19 for (var i = 0; i < testValues.length; i++) {
20 shouldBe("imageData.data[0] = "+testValues[i]+", imageData.data[0]", ""+testResults[i]);
23 shouldBe("imageData.data['foo']='garbage',imageData.data['foo']", "'garbage'");
24 shouldBe("imageData.data[-1]='garbage',imageData.data[-1]", "undefined");
25 shouldBe("imageData.data[17]='garbage',imageData.data[17]", "undefined");