2d.text.draw.align.center.worker.js

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/text/2d.text.draw.align.center.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.text.draw.align.center

// Description:textAlign center is the center of the em squares (not the bounding box)

// Note:

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

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

promise_test(async t => {

  var canvas = new OffscreenCanvas(100, 50);

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

  var f = new FontFace("CanvasTest", "url('/fonts/CanvasTest.ttf')");

  f.load();

  self.fonts.add(f);

  await self.fonts.ready;

  ctx.font = '50px CanvasTest';

  ctx.fillStyle = '#f00';

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

  ctx.fillStyle = '#0f0';

  ctx.textAlign = 'center';

  ctx.fillText('DD', 50, 37.5);

  _assertPixelApprox(canvas, 5,5, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 95,5, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 25,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 75,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 5,45, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 95,45, 0,255,0,255, 2);

}, "textAlign center is the center of the em squares (not the bounding box)");

done();