diff -r 000000000000 -r 6474c204b198 xpcom/tests/TestCallTemplates.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/tests/TestCallTemplates.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim:cindent:ts=8:et:sw=4:
+ *
+ * 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 test is NOT intended to be run.  It's a test to make sure
+ * a group of functions BUILD correctly.
+ */
+
+#include "nsISupportsUtils.h"
+#include "nsIWeakReference.h"
+#include "nsIComponentManager.h"
+#include "nsIServiceManager.h"
+#include "nsWeakReference.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsComponentManagerUtils.h"
+#include "nsServiceManagerUtils.h"
+#include "nsAutoPtr.h"
+#include "mozilla/Attributes.h"
+
+#define NS_ITESTSERVICE_IID \
+  {0x127b5253, 0x37b1, 0x43c7, \
+    { 0x96, 0x2b, 0xab, 0xf1, 0x2d, 0x22, 0x56, 0xae }}
+
+class NS_NO_VTABLE nsITestService : public nsISupports {
+  public: 
+    NS_DECLARE_STATIC_IID_ACCESSOR(NS_ITESTSERVICE_IID)
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsITestService, NS_ITESTSERVICE_IID)
+
+class nsTestService MOZ_FINAL : public nsITestService,
+                                public nsSupportsWeakReference
+{
+  public:
+    NS_DECL_ISUPPORTS
+};
+
+NS_IMPL_ISUPPORTS(nsTestService, nsITestService, nsISupportsWeakReference)
+
+#define NS_TEST_SERVICE_CONTRACTID "@mozilla.org/test/testservice;1"
+#define NS_TEST_SERVICE_CID \
+  {0xa00c1406, 0x283a, 0x45c9, \
+    {0xae, 0xd2, 0x1a, 0xb6, 0xdd, 0xba, 0xfe, 0x53}}
+static NS_DEFINE_CID(kTestServiceCID, NS_TEST_SERVICE_CID);
+
+int main()
+{
+    /*
+     * NOTE:  This does NOT demonstrate how these functions are
+     * intended to be used.  They are intended for filling in out
+     * parameters that need to be |AddRef|ed.  I'm just too lazy
+     * to write lots of little getter functions for a test program
+     * when I don't need to.
+     */
+
+    NS_NOTREACHED("This test is not intended to run, only to compile!");
+
+    /* Test CallQueryInterface */
+
+    nsISupports *mySupportsPtr = reinterpret_cast<nsISupports*>(0x1000);
+
+    nsITestService *myITestService = nullptr;
+    CallQueryInterface(mySupportsPtr, &myITestService);
+
+    nsTestService *myTestService =
+        reinterpret_cast<nsTestService*>(mySupportsPtr);
+    nsISupportsWeakReference *mySupportsWeakRef;
+    CallQueryInterface(myTestService, &mySupportsWeakRef);
+
+    nsCOMPtr<nsISupports> mySupportsCOMPtr = mySupportsPtr;
+    CallQueryInterface(mySupportsCOMPtr, &myITestService);
+
+    nsRefPtr<nsTestService> myTestServiceRefPtr = myTestService;
+    CallQueryInterface(myTestServiceRefPtr, &mySupportsWeakRef);
+
+    /* Test CallQueryReferent */
+
+    nsIWeakReference *myWeakRef =
+        static_cast<nsIWeakReference*>(mySupportsPtr);
+    CallQueryReferent(myWeakRef, &myITestService);
+
+    /* Test CallCreateInstance */
+
+    CallCreateInstance(kTestServiceCID, mySupportsPtr, &myITestService);
+    CallCreateInstance(kTestServiceCID, &myITestService);
+    CallCreateInstance(NS_TEST_SERVICE_CONTRACTID, mySupportsPtr,
+                       &myITestService);
+    CallCreateInstance(NS_TEST_SERVICE_CONTRACTID, &myITestService);
+
+    /* Test CallGetService */
+    CallGetService(kTestServiceCID, &myITestService);
+    CallGetService(NS_TEST_SERVICE_CONTRACTID, &myITestService);
+
+    /* Test CallGetInterface */
+    nsIInterfaceRequestor *myInterfaceRequestor =
+        static_cast<nsIInterfaceRequestor*>(mySupportsPtr);
+    CallGetInterface(myInterfaceRequestor, &myITestService);
+
+    return 0;
+}