diff -r 000000000000 -r 6474c204b198 xpcom/sample/program/nsTestSample.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/sample/program/nsTestSample.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 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/. */
+
+
+/**
+ * A Test application that exercises the sample moudule. This is intented
+ * to be a sample application for using xpcom standalone.
+ */
+
+#include <stdio.h>
+
+#include "nsXPCOMGlue.h"
+#include "nsXPCOM.h"
+#include "nsCOMPtr.h"
+#include "nsISample.h"
+#include "nsIServiceManager.h"
+#include "nsIComponentManager.h"
+#include "nsIComponentRegistrar.h"
+
+#define NS_SAMPLE_CONTRACTID "@mozilla.org/sample;1"
+
+int
+main(void)
+{
+    nsresult rv;
+
+    XPCOMGlueStartup(nullptr);
+
+    // Initialize XPCOM
+    nsCOMPtr<nsIServiceManager> servMan;
+    rv = NS_InitXPCOM2(getter_AddRefs(servMan), nullptr, nullptr);
+    if (NS_FAILED(rv))
+    {
+        printf("ERROR: XPCOM intialization error [%x].\n",
+               static_cast<uint32_t>(rv));
+        return -1;
+    }
+
+    nsCOMPtr<nsIComponentManager> manager = do_QueryInterface(servMan);
+
+    // Create an instance of our component
+    nsCOMPtr<nsISample> mysample;
+    rv = manager->CreateInstanceByContractID(NS_SAMPLE_CONTRACTID,
+                                             nullptr,
+                                             NS_GET_IID(nsISample),
+                                             getter_AddRefs(mysample));
+    if (NS_FAILED(rv))
+    {
+        printf("ERROR: Cannot create instance of component " NS_SAMPLE_CONTRACTID " [%x].\n"
+               "Debugging hint:\n"
+               "\tsetenv NSPR_LOG_MODULES nsComponentManager:5\n"
+               "\tsetenv NSPR_LOG_FILE xpcom.log\n"
+               "\t./nsTestSample\n"
+               "\t<check the contents for xpcom.log for possible cause of error>.\n",
+               static_cast<uint32_t>(rv));
+        return -2;
+    }
+
+    // Call methods on our sample to test it out.
+    rv = mysample->WriteValue("Inital print:");
+    if (NS_FAILED(rv))
+    {
+        printf("ERROR: Calling nsISample::WriteValue() [%x]\n",
+               static_cast<uint32_t>(rv));
+        return -3;
+    }
+
+    const char *testValue = "XPCOM defies gravity";
+    rv = mysample->SetValue(testValue);
+    if (NS_FAILED(rv))
+    {
+        printf("ERROR: Calling nsISample::SetValue() [%x]\n",
+               static_cast<uint32_t>(rv));
+        return -3;
+    }
+    printf("Set value to: %s\n", testValue);
+    char *str;
+    rv = mysample->GetValue(&str);
+
+    if (NS_FAILED(rv))
+    {
+        printf("ERROR: Calling nsISample::GetValue() [%x]\n",
+               static_cast<uint32_t>(rv));
+        return -3;
+    }
+    if (strcmp(str, testValue))
+    {
+        printf("Test FAILED.\n");
+        return -4;
+    }
+
+    NS_Free(str);
+
+    rv = mysample->WriteValue("Final print :");
+    printf("Test passed.\n");
+    
+    // All nsCOMPtr's must be deleted prior to calling shutdown XPCOM
+    // as we should not hold references passed XPCOM Shutdown.
+    servMan = 0;
+    manager = 0;
+    mysample = 0;
+    
+    // Shutdown XPCOM
+    NS_ShutdownXPCOM(nullptr);
+
+    return 0;
+}