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Diffstat (limited to 'testing/web-platform/tests/html/canvas/element/pixel-manipulation/2d.imageData.object.clamp.html')
-rw-r--r-- | testing/web-platform/tests/html/canvas/element/pixel-manipulation/2d.imageData.object.clamp.html | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/pixel-manipulation/2d.imageData.object.clamp.html b/testing/web-platform/tests/html/canvas/element/pixel-manipulation/2d.imageData.object.clamp.html new file mode 100644 index 0000000000..df8ef1ba20 --- /dev/null +++ b/testing/web-platform/tests/html/canvas/element/pixel-manipulation/2d.imageData.object.clamp.html @@ -0,0 +1,54 @@ +<!DOCTYPE html> +<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> +<title>Canvas test: 2d.imageData.object.clamp</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/html/canvas/resources/canvas-tests.js"></script> +<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css"> +<body class="show_output"> + +<h1>2d.imageData.object.clamp</h1> +<p class="desc">ImageData.data clamps numbers to [0, 255]</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.data clamps numbers to [0, 255]"); +_addTest(function(canvas, ctx) { + + var imgdata = ctx.getImageData(0, 0, 10, 10); + + imgdata.data[0] = 100; + imgdata.data[0] = 300; + _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); + imgdata.data[0] = 100; + imgdata.data[0] = -100; + _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); + + imgdata.data[0] = 100; + imgdata.data[0] = 200+Math.pow(2, 32); + _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); + imgdata.data[0] = 100; + imgdata.data[0] = -200-Math.pow(2, 32); + _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); + + imgdata.data[0] = 100; + imgdata.data[0] = Math.pow(10, 39); + _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); + imgdata.data[0] = 100; + imgdata.data[0] = -Math.pow(10, 39); + _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); + + imgdata.data[0] = 100; + imgdata.data[0] = -Infinity; + _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); + imgdata.data[0] = 100; + imgdata.data[0] = Infinity; + _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); + +}); +</script> + |