diff -r 000000000000 -r 6474c204b198 toolkit/components/downloads/test/unit/test_bug_401430.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/downloads/test/unit/test_bug_401430.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,117 @@
+/* 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/. */
+
+// This tests the "add to recent documents" functionality of the DM
+
+const nsIDownloadManager = Ci.nsIDownloadManager;
+const dm = Cc["@mozilla.org/download-manager;1"].getService(nsIDownloadManager);
+
+// Make sure Unicode is supported:
+// U+00E3 : LATIN SMALL LETTER A WITH TILDE
+// U+041B : CYRILLIC CAPITAL LETTER EL
+// U+3056 : HIRAGANA LETTER ZA
+const resultFileName = "test\u00e3\u041b\u3056" + Date.now() + ".doc";
+
+// Milliseconds between polls.
+const POLL_REGISTRY_TIMEOUT = 200;
+// Max number of polls.
+const POLL_REGISTRY_MAX_LOOPS = 25;
+
+function checkResult() {
+  // delete the saved file (this doesn't affect the "recent documents" list)
+  var resultFile = do_get_file(resultFileName);
+  resultFile.remove(false);
+
+  // Need to poll RecentDocs value because the SHAddToRecentDocs call
+  // doesn't update the registry immediately.
+  do_timeout(POLL_REGISTRY_TIMEOUT, pollRecentDocs);
+}
+
+var gPollsCount = 0;
+function pollRecentDocs() {
+  if (++gPollsCount > POLL_REGISTRY_MAX_LOOPS) {
+    do_throw("Maximum time elapsed while polling RecentDocs.");
+    do_test_finished();
+    return;
+  }
+
+  if (checkRecentDocsFor(resultFileName)) {
+    print("Document found in RecentDocs");
+    do_test_finished();
+  }
+  else
+    do_timeout(POLL_REGISTRY_TIMEOUT, pollRecentDocs);
+}
+
+function checkRecentDocsFor(aFileName) {
+  var recentDocsKey = Cc["@mozilla.org/windows-registry-key;1"].
+                        createInstance(Ci.nsIWindowsRegKey);
+  var recentDocsPath =
+        "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\RecentDocs";
+  recentDocsKey.open(Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                     recentDocsPath,
+                     Ci.nsIWindowsRegKey.ACCESS_READ);
+  var count = recentDocsKey.valueCount;
+  for (var i = 0; i < count; ++i) {
+    var valueName = recentDocsKey.getValueName(i);
+    var binValue = recentDocsKey.readBinaryValue(valueName);
+
+    // "fields" in the data are separated by \0 wide characters, which are
+    // returned as two \0 "bytes" by readBinaryValue. Use only the first field.
+    var fileNameRaw = binValue.split("\0\0")[0];
+
+    // Convert the filename from UTF-16LE.
+    var fileName = "";
+    for (var c = 0; c < fileNameRaw.length; c += 2)
+      fileName += String.fromCharCode(fileNameRaw.charCodeAt(c) |
+                                      fileNameRaw.charCodeAt(c+1) * 256);
+
+    if (aFileName == fileName)
+      return true;
+  }
+  return false;
+}
+
+var httpserv = null;
+function run_test()
+{
+  if (oldDownloadManagerDisabled()) {
+    return;
+  }
+
+  // This test functionality only implemented on Windows.
+  // Is there a better way of doing this?
+  var httpPH = Cc["@mozilla.org/network/protocol;1?name=http"].
+               getService(Ci.nsIHttpProtocolHandler);
+  if (httpPH.platform != "Windows")
+    return;
+
+  // Don't finish until the download is finished
+  do_test_pending();
+
+  httpserv = new HttpServer();
+  httpserv.registerDirectory("/", do_get_cwd());
+  httpserv.start(-1);
+
+  var listener = {
+    onDownloadStateChange: function test_401430_odsc(aState, aDownload) {
+      if (aDownload.state == Ci.nsIDownloadManager.DOWNLOAD_FINISHED) {
+        checkResult();
+      }
+    },
+    onStateChange: function(a, b, c, d, e) { },
+    onProgressChange: function(a, b, c, d, e, f, g) { },
+    onSecurityChange: function(a, b, c, d) { }
+  };
+
+  dm.addListener(listener);
+  dm.addListener(getDownloadListener());
+
+  // need to save the file to the CWD, because the profile dir is in $TEMP,
+  // and Windows apparently doesn't like putting things from $TEMP into
+  // the recent files list.
+  var dl = addDownload(httpserv,
+                       {resultFileName: resultFileName,
+                        targetFile: do_get_file(resultFileName, true)});
+}