chromium/third_party/blink/web_tests/external/wpt/FileAPI/filelist-section/filelist.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset='utf-8'>
    <title>FileAPI Test: filelist</title>
    <link rel='author' title='Intel' href='http://www.intel.com'>
    <link rel='help' href='http://dev.w3.org/2006/webapi/FileAPI/#filelist-section'>
    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#dfn-length">
    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#dfn-item">
    <script src='/resources/testharness.js'></script>
    <script src='/resources/testharnessreport.js'></script>
  </head>

  <body>
    <form name='uploadData' style="display:none">
      <input type='file' id='fileChooser'>
    </form>
    <div id='log'></div>

    <script>
      var fileList;

      setup(function () {
        fileList = document.querySelector('#fileChooser').files;
      });

      test(function () {
        assert_true('FileList' in window, 'window has a FileList property');
      }, 'Check if window has a FileList property');

      test(function () {
        assert_equals(FileList.length, 0, 'FileList.length is 0');
      }, 'Check if FileList.length is 0');

      test(function () {
        assert_true(fileList.item instanceof Function, 'item is a instanceof Function');
      }, 'Check if item is a instanceof Function');

      test(function() {
        assert_inherits(fileList, 'item', 'item is a method of fileList');
      }, 'Check if item is a method of fileList');

      test(function() {
        assert_equals(fileList.item(0), null, 'item method returns null');
      }, 'Check if the item method returns null when no file selected');

      test(function() {
        assert_inherits(fileList, 'length', 'length is fileList attribute');
      }, 'Check if length is fileList\'s attribute');

      test(function() {
        assert_equals(fileList.length, 0, 'fileList length is 0');
      }, 'Check if the fileList length is 0 when no file selected');
    </script>

  </body>
</html>