2d.imageData.get.zero.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->

<meta charset="UTF-8">

<title>OffscreenCanvas test: 2d.imageData.get.zero</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.get.zero</h1>

<p class="desc">getImageData() throws INDEX_SIZE_ERR if size is zero</p>

<script>

var t = async_test("getImageData() throws INDEX_SIZE_ERR if size is zero");

var t_pass = t.done.bind(t);

var t_fail = t.step_func(function(reason) {

    throw reason;

});

t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);

  var ctx = canvas.getContext('2d');

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 10, 0); });

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0, 10); });

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0, 0); });

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0.1, 10); });

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 10, 0.99); });

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, -0.1, 10); });

  assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 10, -0.99); });

  t.done();

});

</script>