<!DOCTYPE html> <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> <title>Canvas test: 2d.imageData.object.readonly</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/common/canvas-tests.js"></script> <link rel="stylesheet" href="/common/canvas-tests.css"> <body class="show_output"> <h1>2d.imageData.object.readonly</h1> <p class="desc">ImageData objects properties are read-only</p> <p class="output">Actual output:</p> <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> <ul id="d"></ul> <script> var t = async_test("ImageData objects properties are read-only"); _addTest(function(canvas, ctx) { var imgdata = ctx.getImageData(0, 0, 10, 10); var w = imgdata.width; var h = imgdata.height; var d = imgdata.data; imgdata.width = 123; imgdata.height = 123; imgdata.data = [100,100,100,100]; _assertSame(imgdata.width, w, "imgdata.width", "w"); _assertSame(imgdata.height, h, "imgdata.height", "h"); _assertSame(imgdata.data, d, "imgdata.data", "d"); _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); _assertSame(imgdata.data[1], 0, "imgdata.data[\""+(1)+"\"]", "0"); _assertSame(imgdata.data[2], 0, "imgdata.data[\""+(2)+"\"]", "0"); _assertSame(imgdata.data[3], 0, "imgdata.data[\""+(3)+"\"]", "0"); }); </script>