The Tor Browser / file revision

 // Tests that calling close on a converter in/output stream doesn't crash

 // (bug 321379)

 function run_test() {

   var StorageStream = Components.Constructor("@mozilla.org/storagestream;1",

                                              "nsIStorageStream",

                                              "init");

   var ConverterInputStream = Components.Constructor("@mozilla.org/intl/converter-input-stream;1",

                                                     "nsIConverterInputStream",

                                                     "init");

   var ConverterOutputStream = Components.Constructor("@mozilla.org/intl/converter-output-stream;1",

                                                      "nsIConverterOutputStream",

                                                      "init");

   var storage = new StorageStream(1024, -1, null);

   // Output

   var outStr = storage.getOutputStream(0);

   var out = new ConverterOutputStream(outStr, "UTF-8", 1024, 0xFFFD);

   out.writeString("Foo.");

   out.close();

   out.close(); // This line should not crash. It should just do nothing.

   // Input

   var inStr = storage.newInputStream(0);

   var inp = new ConverterInputStream(inStr, "UTF-8", 1024, 0xFFFD);

   inp.close();

   inp.close(); // This line should not crash. It should just do nothing.

 }