diff -r 000000000000 -r 6474c204b198 toolkit/components/autocomplete/tests/unit/test_popupSelectionVsDefaultCompleteValue.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/autocomplete/tests/unit/test_popupSelectionVsDefaultCompleteValue.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,71 @@
+/* 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 AutoCompleteTypeAheadResult(aValues, aFinalCompleteValues) {
+  this._values = aValues;
+  this._finalCompleteValues = aFinalCompleteValues;
+  this.defaultIndex = 0;
+  this._typeAheadResult = true;
+}
+AutoCompleteTypeAheadResult.prototype = Object.create(AutoCompleteResultBase.prototype);
+
+function AutoCompleteResult(aValues) {
+  this._values = aValues;
+}
+AutoCompleteResult.prototype = Object.create(AutoCompleteResultBase.prototype);
+
+function AutoCompleteInput(aSearches) {
+  this.searches = aSearches;
+  this.popupOpen = true;
+  this.completeDefaultIndex = true;
+  this.completeSelectedIndex = true;
+}
+AutoCompleteInput.prototype = Object.create(AutoCompleteInputBase.prototype);
+
+function run_test() {
+  run_next_test();
+}
+
+add_test(function test_handleEnter() {
+  doSearch("moz", function(aController) {
+    do_check_eq(aController.input.textValue, "mozilla.com");
+    aController.handleEnter(true);
+    do_check_eq(aController.input.textValue, "mozilla.org");
+  });
+});
+
+function doSearch(aSearchString, aOnCompleteCallback) {
+  let typeAheadSearch = new AutoCompleteSearchBase(
+    "typeAheadSearch",
+    new AutoCompleteTypeAheadResult([ "mozilla.com" ], [ "http://www.mozilla.com" ])
+  );
+  registerAutoCompleteSearch(typeAheadSearch);
+
+  let search = new AutoCompleteSearchBase(
+    "search",
+    new AutoCompleteResult([ "mozilla.org" ])
+  );
+  registerAutoCompleteSearch(search);
+
+  let controller = Cc["@mozilla.org/autocomplete/controller;1"].
+                   getService(Ci.nsIAutoCompleteController);
+
+  // Make an AutoCompleteInput that uses our searches and confirms results.
+  let input = new AutoCompleteInput([ typeAheadSearch.name, search.name ]);
+  input.textValue = aSearchString;
+
+  // Caret must be at the end for autofill to happen.
+  let strLen = aSearchString.length;
+  input.selectTextRange(strLen, strLen);
+  controller.input = input;
+  controller.startSearch(aSearchString);
+
+  input.onSearchComplete = function onSearchComplete() {
+    aOnCompleteCallback(controller);
+
+    // Clean up.
+    unregisterAutoCompleteSearch(search);
+    run_next_test();
+  };
+}