The Tor Browser / file revision

 function test()

 {

   let data = [

     { value: "/tmp", result: "tmp" },

     { title: "foo", result: "foo" },

     { result: "No file selected." },

     { multiple: true, result: "No files selected." },

     { required: true, result: "Please select a file." }

   ];

   let doc = gBrowser.contentDocument;

   let tooltip = document.getElementById("aHTMLTooltip");

   for (let test of data) {

     let input = doc.createElement('input');

     doc.body.appendChild(input);

     input.type = 'file';

     if (test.title) {

       input.setAttribute('title', test.title);

     }

     if (test.value) {

       if (test.value == "/tmp" && navigator.platform.indexOf('Win') != -1) {

         test.value = "C:\\Temp";

         test.result = "Temp";

       }

       input.value = test.value;

     }

     if (test.multiple) {

       input.multiple = true;

     }

     if (test.required) {

       input.required = true;

     }

     ok(tooltip.fillInPageTooltip(input));

     is(tooltip.getAttribute('label'), test.result);

   }

 }