test_badMIMEType.js

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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

function run_test() {

  // "text/plain" has an 0xFF character appended to it.  This means it's an

  // invalid string, which is tricky to enter using a text editor (I used

  // emacs' hexl-mode).  It also means an ordinary text editor might drop it

  // or convert it to something that *is* valid (in UTF8).  So we measure

  // its length to make sure this hasn't happened.

  var badMimeType = "text/plainÿ";

  Assert.equal(badMimeType.length, 11);

  try {

    Cc["@mozilla.org/mime;1"]

      .getService(Ci.nsIMIMEService)

      .getFromTypeAndExtension(badMimeType, "txt");

  } catch (e) {

    if (

      !(e instanceof Ci.nsIException) ||

      e.result != Cr.NS_ERROR_NOT_AVAILABLE

) {

      throw e;

    // This is an expected exception, thrown if the type can't be determined

  // Not crashing is good enough

  Assert.equal(true, true);