2d.path.closed.arc.worker.js

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/path-objects/2d.path.closed.arc.worker.html - WPT Dashboard Interop Dashboard

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

// OffscreenCanvas test in a worker:2d.path.closed.arc

// Description:line caps should not be drawn on closed arcs

// Note:

importScripts("/resources/testharness.js");

importScripts("/html/canvas/resources/canvas-tests.js");

var t = async_test("line caps should not be drawn on closed 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.closePath();

  ctx.stroke();

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

  // Linecap is not drawn if the circle is closed, so the pixel is not red.

  assert_not_equals(ctx.getImageData(209, 148, 1, 1).data, [255, 0, 0, 255])

  t.done();

});

done();