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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.text.measure.advances</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.text.measure.advances</h1>
<p class="desc">Testing width advances</p>


<script>
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();
  document.fonts.add(f);
  await document.fonts.ready;
  ctx.font = '50px CanvasTest';
  ctx.direction = 'ltr';
  ctx.align = 'left'
  // Some platforms may return '-0'.
  _assertSame(Math.abs(ctx.measureText('Hello').advances[0]), 0, "Math.abs(ctx.measureText('Hello').advances[\""+(0)+"\"])", "0");
  // Different platforms may render text slightly different.
  _assert(ctx.measureText('Hello').advances[1] >= 36, "ctx.measureText('Hello').advances[\""+(1)+"\"] >= 36");
  _assert(ctx.measureText('Hello').advances[2] >= 58, "ctx.measureText('Hello').advances[\""+(2)+"\"] >= 58");
  _assert(ctx.measureText('Hello').advances[3] >= 70, "ctx.measureText('Hello').advances[\""+(3)+"\"] >= 70");
  _assert(ctx.measureText('Hello').advances[4] >= 80, "ctx.measureText('Hello').advances[\""+(4)+"\"] >= 80");

  var tm = ctx.measureText('Hello');
  _assertSame(ctx.measureText('Hello').advances[0], tm.advances[0], "ctx.measureText('Hello').advances[\""+(0)+"\"]", "tm.advances[\""+(0)+"\"]");
  _assertSame(ctx.measureText('Hello').advances[1], tm.advances[1], "ctx.measureText('Hello').advances[\""+(1)+"\"]", "tm.advances[\""+(1)+"\"]");
  _assertSame(ctx.measureText('Hello').advances[2], tm.advances[2], "ctx.measureText('Hello').advances[\""+(2)+"\"]", "tm.advances[\""+(2)+"\"]");
  _assertSame(ctx.measureText('Hello').advances[3], tm.advances[3], "ctx.measureText('Hello').advances[\""+(3)+"\"]", "tm.advances[\""+(3)+"\"]");
  _assertSame(ctx.measureText('Hello').advances[4], tm.advances[4], "ctx.measureText('Hello').advances[\""+(4)+"\"]", "tm.advances[\""+(4)+"\"]");

}, "Testing width advances");
</script>