diff -r 000000000000 -r 6474c204b198 toolkit/components/search/tests/xpcshell/test_resultDomain.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/search/tests/xpcshell/test_resultDomain.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+/* Any copyright is dedicated to the Public Domain.
+ *    http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+ * Tests getResultDomain API.
+ */
+
+"use strict";
+
+const Ci = Components.interfaces;
+
+Components.utils.import("resource://testing-common/httpd.js");
+
+let waitForEngines = new Set([ "Test search engine",
+                               "A second test engine",
+                               "bacon" ]);
+
+function promiseEnginesAdded() {
+  let deferred = Promise.defer();
+
+  let observe = function observe(aSubject, aTopic, aData) {
+    let engine = aSubject.QueryInterface(Ci.nsISearchEngine);
+    do_print("Observer: " + aData + " for " + engine.name);
+    if (aData != "engine-added") {
+      return;
+    }
+    waitForEngines.delete(engine.name);
+    if (waitForEngines.size > 0) {
+      return;
+    }
+
+    let engine1 = Services.search.getEngineByName("Test search engine");
+    do_check_eq(engine1.getResultDomain(), "google.com");
+    do_check_eq(engine1.getResultDomain("text/html"), "google.com");
+    do_check_eq(engine1.getResultDomain("application/x-moz-default-purpose"),
+                "purpose.google.com");
+    do_check_eq(engine1.getResultDomain("fake-response-type"), "");
+    let engine2 = Services.search.getEngineByName("A second test engine");
+    do_check_eq(engine2.getResultDomain(), "duckduckgo.com");
+    let engine3 = Services.search.getEngineByName("bacon");
+    do_check_eq(engine3.getResultDomain(), "bacon.moz");
+    deferred.resolve();
+  };
+
+  Services.obs.addObserver(observe, "browser-search-engine-modified", false);
+  do_register_cleanup(function cleanup() {
+    Services.obs.removeObserver(observe, "browser-search-engine-modified");
+  });
+
+  return deferred.promise;
+}
+
+function run_test() {
+  removeMetadata();
+  updateAppInfo();
+
+  run_next_test();
+}
+
+add_task(function* check_resultDomain() {
+  let httpServer = new HttpServer();
+  httpServer.start(-1);
+  httpServer.registerDirectory("/", do_get_cwd());
+  let baseUrl = "http://localhost:" + httpServer.identity.primaryPort;
+  do_register_cleanup(function cleanup() {
+    httpServer.stop(function() {});
+  });
+
+  let promise = promiseEnginesAdded();
+  Services.search.addEngine(baseUrl + "/data/engine.xml",
+                            Ci.nsISearchEngine.DATA_XML,
+                            null, false);
+  Services.search.addEngine(baseUrl + "/data/engine2.xml",
+                            Ci.nsISearchEngine.DATA_XML,
+                            null, false);
+  Services.search.addEngineWithDetails("bacon", "", "bacon", "Search Bacon",
+                                       "GET", "http://www.bacon.moz/?search={searchTerms}");
+  yield promise;
+});