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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>Canvas test: 2d.text.measure.selection-rects-baselines.tentative</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
<body class="show_output">

<h1>2d.text.measure.selection-rects-baselines.tentative</h1>
<p class="desc">Check that TextMetrics::getSelectionRects() works correctly with textBaseline.</p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

<ul id="d"></ul>
<script>
var t = async_test("Check that TextMetrics::getSelectionRects() works correctly with textBaseline.");
_addTest(function(canvas, ctx) {

  ctx.font = '50px sans-serif';

  const kBaselines = [
    "top",
    "hanging",
    "middle",
    "alphabetic",
    "ideographic",
    "bottom",
  ];

  const kTexts = [
    'UNAVAILABLE',
    '🏁🎢🏁',
    'οΌ‰οΌˆγ‚οΌ‰οΌˆ',
    '-abcd_'
  ]

  for (const text of kTexts) {
    for (const baseline of kBaselines) {
      const tm = ctx.measureText(text);
      // First character.
      for (const r of tm.getSelectionRects(0, 1)) {
        assert_approx_equals(r.top, -tm.fontBoundingBoxAscent, 1.0);
        assert_approx_equals(r.bottom, tm.fontBoundingBoxDescent, 1.0);
      }
      // Last character.
      for (const r of tm.getSelectionRects(text.length - 1, text.length)) {
        assert_approx_equals(r.top, -tm.fontBoundingBoxAscent, 1.0);
        assert_approx_equals(r.bottom, tm.fontBoundingBoxDescent, 1.0);
      }
      // Whole string.
      for (const r of tm.getSelectionRects(0, text.length)) {
        assert_approx_equals(r.top, -tm.fontBoundingBoxAscent, 1.0);
        assert_approx_equals(r.bottom, tm.fontBoundingBoxDescent, 1.0);
      }
      // Intermediate string.
      for (const r of tm.getSelectionRects(1, text.length - 1)) {
        assert_approx_equals(r.top, -tm.fontBoundingBoxAscent, 1.0);
        assert_approx_equals(r.bottom, tm.fontBoundingBoxDescent, 1.0);
      }
      // Invalid start > end string. Creates 0 width rectangle.
      for (const r of tm.getSelectionRects(3, 2)) {
        assert_approx_equals(r.top, -tm.fontBoundingBoxAscent, 1.0);
        assert_approx_equals(r.bottom, tm.fontBoundingBoxDescent, 1.0);
      }
      for (const r of tm.getSelectionRects(1, 0)) {
        assert_approx_equals(r.top, -tm.fontBoundingBoxAscent, 1.0);
        assert_approx_equals(r.bottom, tm.fontBoundingBoxDescent, 1.0);
      }
    }
  }

});
</script>