layout/reftests/bugs/1369985-1.html

   1 <!DOCTYPE html>
   2 <meta charset="UTF-8">
   3 <style>
   4 body {
   5   padding: 0;
   6   margin: 0;
   7   font-size: 2px;
   8   line-height: 1;
   9 }
  10 </style>
  11 <body>
  12 <script>
  13   // This is the constant in nsTextFrame.cpp of the number of lines
  14   // which a text run can be built up to.
  15   const NUM_LINES_TO_BUILD_TEXT_RUNS = 200;
  16   // Since the font-size is small, we need lots of blocks so that it can
  17   // be seen clearer whether difference is fuzzy or real failure.
  18   let x = '\u2588'.repeat(100) + '<br>';
  19   for (let i = 0; i < NUM_LINES_TO_BUILD_TEXT_RUNS / 2 - 1; i++) {
  20     document.write(x)
  21   }
  22   // We want this piece to be in whatever place inside the first
  23   // NUM_LINES_TO_BUILD_TEXT_RUNS lines.
  24   document.write('あ\nあ<br>');
  25   // And we want another NUM_LINES_TO_BUILD_TEXT_RUNS lines to check.
  26   for (let i = 0; i < NUM_LINES_TO_BUILD_TEXT_RUNS * 1.5; i++) {
  27     document.write(x)
  28   }
  29 </script>