gecko-dev/xpcom/tests/unit/test_bug364285-1.js

var nameArray = [
  "ascii", // ASCII
  "fran\u00E7ais", // Latin-1
  "\u0420\u0443\u0441\u0441\u043A\u0438\u0439", // Cyrillic
  "\u65E5\u672C\u8A9E", // Japanese
  "\u4E2D\u6587", // Chinese
  "\uD55C\uAD6D\uC5B4", // Korean
  "\uD801\uDC0F\uD801\uDC2D\uD801\uDC3B\uD801\uDC2B", // Deseret
];

function getTempDir() {
  return Services.dirsvc.get("TmpD", Ci.nsIFile);
}

function create_file(fileName) {
  var outFile = getTempDir();
  outFile.append(fileName);
  outFile.createUnique(outFile.NORMAL_FILE_TYPE, 0o600);

  var stream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(
    Ci.nsIFileOutputStream
  );
  stream.init(outFile, 0x02 | 0x08 | 0x20, 0o600, 0);
  stream.write("foo", 3);
  stream.close();

  Assert.equal(outFile.leafName.substr(0, fileName.length), fileName);

  return outFile;
}

function test_create(fileName) {
  var file1 = create_file(fileName);
  var file2 = create_file(fileName);
  file1.remove(false);
  file2.remove(false);
}

function run_test() {
  for (var i = 0; i < nameArray.length; ++i) {
    test_create(nameArray[i]);
  }
}