chromium/third_party/blink/web_tests/editing/caret/caret-color-003.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Basic User Interface Test: caret-color auto</title>
<link rel="author" title="Chris Lilley" href="mailto:[email protected]">
<link rel="author" title="Florian Rivoal" href="mailto:[email protected]">
<link rel="help" href="http://www.w3.org/TR/css3-ui/#caret-color">
<meta name="flags" content="interact should">
<meta name="assert" content="Test checks that caret-color: auto matches currentColor">
<style>
  textarea {
    font-size: 3em;
    font-weight: bold;
    width: 10em;
    padding: 10px;
    background: black; /* the color of a thin object like the caret is easier to see on a black background. */

    color: lime;
    caret-color: auto; /*initial value, but to be sure in case the UA stylesheet sets something else */
  }
</style>
<body>
  <p>Test passes if, when the text area below is focused for editing, the text insertion caret is green,
  like the text in that textarea.</p>
  <p>The shape of the caret, and whether it flashes, are not part of the test.</p>
  <textarea id="test"></textarea>
  <script>
    window.onload = function() {
      document.getElementById("test").focus();
    }
  </script>
</body>