chromium/third_party/blink/web_tests/external/wpt/css/css-text/white-space/white-space-intrinsic-size-019.html

<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Text Test: min-content sizing and 'white-space: pre-line'</title>

  <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
  <link rel="help" href="https://www.w3.org/TR/css-text-3/#white-space-property">
  <link rel="help" href="https://www.w3.org/TR/css-text-3/#white-space-phase-2">
  <link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css">

  <meta content="When 'white-space' is 'pre-line', sequence of white spaces are collapsed into 1 white space, the tabs are converted into a single white space and then the white spaces at the end of the line are removed." name="assert">

  <style>
  div
    {
      color: transparent;
      /*
      so that background-color can
      shine through the A, G, M glyphs
      */
      font-family: Ahem;
      font-size: 50px;
      line-height: 1;
      width: 0;
      /*
      This will trigger
      min-content size
      for div#min-sized-parent
      */
    }

  div#reference-overlapped-red
    {
      background-color: red;
      position: absolute;
      width: auto;
      z-index: -1;
    }

  div#test-overlapping-green
    {
      background-color: green;
      float: left;
      white-space: pre-line;  /* spaces and tabs collapse */
      width: auto;
    }
  </style>

  <p>Test passes if there is a filled green square and <strong>no red</strong>.

  <div id="reference-overlapped-red">12<br>3</div>

  <div id="min-sized-parent">

    <div id="test-overlapping-green">A &Tab; &Tab; GM   &Tab;</div>

  </div>

  <!--

  The sequence of white spaces
  are collapsed. The tabs are
  converted into a single
  white space character. Then
  the spaces at the end-of-line
  are removed. That
  is by definition of
  'white-space: pre-line'.

  The end result is
  [A
   GM]

  Since div#test-overlapping-green
  is floated and since its parent in
  the flow is 0-width, then the float
  is min-content sized.

  -->