2d.path.open.arc.html

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/path-objects/2d.path.open.arc.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.path.open.arc</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.path.open.arc</h1>

<p class="desc">line caps should be drawn on open arcs</p>

<script>

var t = async_test("line caps should be drawn on open arcs");

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

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

    throw reason;

});

t.step(function() {

  var canvas = new OffscreenCanvas(300, 300);

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

  ctx.beginPath();

  ctx.strokeStyle = 'red';

  ctx.lineWidth = 20;

  ctx.lineCap = 'square';

  ctx.arc(150, 150, 50, 0, 2 * Math.PI);

  ctx.stroke();

  // The pixel (209, 148) is part of the line cap, but not part of the circle.

  // Linecap is drawn with 360 degree arc, so the pixel is red.

  _assertPixelApprox(canvas, 209,148, 255,0,0,255, 1);

  t.done();

});

</script>