gecko-dev/dom/canvas/test/test_ImageData_ctor.html

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<!DOCTYPE HTML><meta charset=utf-8>
<title>Canvas test: ImageData</title>
<script type="text/javascript" src="/resources/testharness.js"></script>
<script type="text/javascript" src="/resources/testharnessreport.js"></script>
<body>
<div id="log"></div>
<script>
test(function() {
assert_throws(new TypeError(), function(){ new ImageData(); });
assert_throws(new TypeError(), function(){ new ImageData(1); });
assert_throws(new TypeError(), function(){ new ImageData(new Uint8ClampedArray([1,2,3,4])); });
assert_throws("IndexSizeError", function(){ new ImageData(0,0); });
assert_throws("IndexSizeError", function(){ new ImageData(0,1); });
assert_throws("IndexSizeError", function(){ new ImageData(1,0); });
new ImageData(1,1);
new ImageData(1,2);
new ImageData(1,3);
assert_throws("IndexSizeError", function(){ new ImageData(2,0); });
new ImageData(2,1);
new ImageData(2,2);
assert_throws("IndexSizeError", function(){ new ImageData(32768,32768); });
assert_throws("IndexSizeError", function(){ new ImageData(32768,32769); });
assert_throws("IndexSizeError", function(){ new ImageData(32769,32768); });
assert_throws("IndexSizeError", function(){ new ImageData(2,536870912); });
assert_throws("IndexSizeError", function(){ new ImageData(2,536870913); });
assert_throws("IndexSizeError", function(){ new ImageData(536870912,2); });
assert_throws("IndexSizeError", function(){ new ImageData(536870913,2); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([]),0); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([]),0,0); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([]),1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1]),1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1,2]),1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1,2,3]),1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5]),1); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),0); });
new ImageData(new Uint8ClampedArray([1,2,3,4]),1);
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),2); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),0); });
new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),1);
new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),2);
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),3); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([]),1,1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1]),1,1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1,2]),1,1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1,2,3]),1,1); });
assert_throws("InvalidStateError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5]),1,1); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),0,0); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),0,1); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),0,2); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),1,0); });
new ImageData(new Uint8ClampedArray([1,2,3,4]),1,1);
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),1,2); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),2,0); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),2,1); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4]),2,2); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),1,1); });
new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),1,2);
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),1,3); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),2,0); });
new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),2,1);
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),2,2); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),2,536870912); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),2,536870913); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),536870912,2); });
assert_throws("IndexSizeError", function(){ new ImageData(new Uint8ClampedArray([1,2,3,4,5,6,7,8]),536870913,2); });
}, "Test constructor arguments");
test(function() {
var data = new Uint8ClampedArray([1,2,3,4,5,6,7,8]);
var imgData = new ImageData(data,1);
assert_equals(imgData.width, 1);
assert_equals(imgData.height, 2);
assert_array_equals(imgData.data, [1,2,3,4,5,6,7,8]);
data.set([8,7,6,5,4,3,2,1]);
assert_array_equals(imgData.data, [8,7,6,5,4,3,2,1]);
}, "The data argument is not copied");
</script>