third_party/WebKit/LayoutTests/fast/forms/input-implicit-length-limit.html

   1 <p>This page tests that the length of an <tt>&lt;input&gt;</tt> element's string is implicitly limited to 524288 characters. <a href="http://bugs.webkit.org/show_bug.cgi?id=14388">http://bugs.webkit.org/show_bug.cgi?id=14388</a></p>
   2 <input id="input">
   3 <pre id="log"></pre>
   4 <script>
   5     function log(msg)
   6     {
   7         document.getElementById("log").appendChild(document.createTextNode(msg + "\n"));
   8     }
   9
  10     if (window.testRunner)
  11         testRunner.dumpAsText();
  12
  13     var testString = "";
  14
  15     function attempt(length, expected)
  16     {
  17         log("Attempting to insert " + length + " characters.");
  18
  19         if (testString.length > length)
  20             testString = "";
  21
  22         for (var i = testString.length; i < length; ++i)
  23             testString += i % 10;
  24
  25         var input = document.getElementById("input");
  26         input.value = testString;
  27
  28         if (input.value.length == expected)
  29             log("PASS");
  30         else
  31             log("FAIL: Expected " + expected + " characters to be inserted, but " + input.value.length + " characters were actually inserted.");
  32     }
  33
  34     attempt(0, 0);
  35     attempt(5, 5);
  36     attempt(1025, 1025);
  37     attempt(524287, 524287);
  38     attempt(524288, 524288);
  39     attempt(524289, 524288);
  40     attempt(530000, 524288);
  41 </script>