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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.imageData.object.round</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<h1>2d.imageData.object.round</h1>
<p class="desc">ImageData.data rounds numbers with round-to-zero</p>
<script>
var t = async_test("ImageData.data rounds numbers with round-to-zero");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
throw reason;
});
t.step(function() {
var offscreenCanvas = new OffscreenCanvas(100, 50);
var ctx = offscreenCanvas.getContext('2d');
var imgdata = ctx.getImageData(0, 0, 10, 10);
imgdata.data[0] = 0.499;
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
imgdata.data[0] = 0.5;
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
imgdata.data[0] = 0.501;
_assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1");
imgdata.data[0] = 1.499;
_assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1");
imgdata.data[0] = 1.5;
_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
imgdata.data[0] = 1.501;
_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
imgdata.data[0] = 2.5;
_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
imgdata.data[0] = 3.5;
_assertSame(imgdata.data[0], 4, "imgdata.data[\""+(0)+"\"]", "4");
imgdata.data[0] = 252.5;
_assertSame(imgdata.data[0], 252, "imgdata.data[\""+(0)+"\"]", "252");
imgdata.data[0] = 253.5;
_assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254");
imgdata.data[0] = 254.5;
_assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254");
imgdata.data[0] = 256.5;
_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
imgdata.data[0] = -0.5;
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
imgdata.data[0] = -1.5;
_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
t.done();
});
</script>
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