2d.path.arcTo.zero.2.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/path-objects/2d.path.arcTo.zero.2.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.arcTo.zero.2</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.arcTo.zero.2</h1>

<p class="desc">arcTo() with zero radius draws a straight line from P0 to P1, even when all points are collinear</p>

<script>

var t = async_test("arcTo() with zero radius draws a straight line from P0 to P1, even when all points are collinear");

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');

  ctx.fillStyle = '#f00';

  ctx.fillRect(0, 0, 100, 50);

  ctx.lineWidth = 50;

  ctx.strokeStyle = '#0f0';

  ctx.beginPath();

  ctx.moveTo(0, 25);

  ctx.arcTo(100, 25, -100, 25, 0);

  ctx.stroke();

  ctx.strokeStyle = '#f00';

  ctx.beginPath();

  ctx.moveTo(100, 25);

  ctx.arcTo(200, 25, 50, 25, 0);

  ctx.stroke();

  _assertPixel(canvas, 50,25, 0,255,0,255);

  t.done();

});

</script>