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1 description("Series of tests to ensure correct behaviour of the ImageData object
"); | 1 description("Series of tests to ensure correct behaviour of the ImageData object
"); |
2 | 2 |
3 imageData = document.getElementById("canvas").getContext("2d").getImageData(0,0,
2,2); | 3 imageData = document.getElementById("canvas").getContext("2d").getImageData(0,0,
2,2); |
4 | 4 |
5 shouldBe("imageData.width", "2"); | 5 shouldBe("imageData.width", "2"); |
6 shouldBe("imageData.height", "2"); | 6 shouldBe("imageData.height", "2"); |
7 shouldBe("imageData.data.length", "16"); | 7 shouldBe("imageData.data.length", "16"); |
8 for (var i = 0; i < imageData.data.length; i++) | 8 for (var i = 0; i < imageData.data.length; i++) |
9 shouldBe("imageData.data["+i+"]", "0"); | 9 shouldBe("imageData.data["+i+"]", "0"); |
10 | 10 |
11 var testValues = [NaN, true, false, "\"garbage\"", "-1", | 11 var testValues = [NaN, true, false, "\"garbage\"", "-1", |
12 "\"0\"", "\"1\"", "\"2\"", Infinity, -Infinity, | 12 "\"0\"", "\"1\"", "\"2\"", Infinity, -Infinity, |
13 -5, -0.5, 0, 0.5, 5, | 13 -5, -0.5, 0, 0.5, 5, |
14 5.4, 255, 256, null, undefined]; | 14 5.4, 255, 256, null, undefined]; |
15 var testResults = [0, 1, 0, 0, 0, | 15 var testResults = [0, 1, 0, 0, 0, |
16 0, 1, 2, 255, 0, | 16 0, 1, 2, 255, 0, |
17 0, 0, 0, 0, 5, | 17 0, 0, 0, 0, 5, |
18 5, 255, 255, 0, 0]; | 18 5, 255, 255, 0, 0]; |
19 for (var i = 0; i < testValues.length; i++) { | 19 for (var i = 0; i < testValues.length; i++) { |
20 shouldBe("imageData.data[0] = "+testValues[i]+", imageData.data[0]", ""+test
Results[i]); | 20 shouldBe("imageData.data[0] = "+testValues[i]+", imageData.data[0]", ""+test
Results[i]); |
21 } | 21 } |
22 | 22 |
23 shouldBe("imageData.data['foo']='garbage',imageData.data['foo']", "'garbage'"); | 23 shouldBe("imageData.data['foo']='garbage',imageData.data['foo']", "'garbage'"); |
24 shouldBe("imageData.data[-1]='garbage',imageData.data[-1]", "'garbage'"); | 24 shouldBe("imageData.data[-1]='garbage',imageData.data[-1]", "undefined"); |
25 shouldBe("imageData.data[17]='garbage',imageData.data[17]", "undefined"); | 25 shouldBe("imageData.data[17]='garbage',imageData.data[17]", "undefined"); |
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