<!DOCTYPE html>
<meta charset="UTF-8">
<title>getSubStringLength() with Arabic script</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<svg width="50px" height="120px" font-family="Arial" font-size="30px">
  <text id="ltrtext" y="30">إعلانات</text>
  <text id="rtltext" y="60" x="75" direction="rtl">إعلانات</text>
  <text id="ltrmixed" y="90">Fooإعلانات</text>
  <text id="rtlmixed" y="120" x="75" direction="rtl">Fooإعلانات</text>
</svg>
<script>
test(function() {
  var textElms = document.getElementsByTagName('text');
  var ltr = textElms[0];
  var rtl = textElms[1];
  var subExtentsLtr = [];
  var subExtentsRtl = [];
  for (var i = 1; i < 7; ++i) {
    subExtentsLtr.push(ltr.getSubStringLength(1, i));
    subExtentsRtl.push(rtl.getSubStringLength(1, i));
  }

  assert_array_equals(subExtentsLtr, subExtentsRtl);
}, '"direction" does not affect sub string lengths.');

test(function() {
  var textElms = document.getElementsByTagName('text');
  var extentsLtr = textElms[2].getSubStringLength(2, 7);
  var extentsRtl = textElms[3].getSubStringLength(2, 7);

  assert_equals(extentsLtr, extentsRtl);
}, '"direction" does not affect sub string lengths across BiDi runs w/ different levels.');
</script>