pldmd: move to libpldm instance ID alloc/free

Refactor the dbus_api::Requester class to be implemented in terms of
libpldm's instance ID database. To make that easier to deal with we
introduce a light-weight RAII C++ binding along with a helper class for
unit tests.

Change-Id: Ia03de8245dfb114e6266ba36dcf26ca4398a4ce0
Signed-off-by: Rashmica Gupta <rashmica@linux.ibm.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/fw-update/test/inventory_manager_test.cpp b/fw-update/test/inventory_manager_test.cpp
index dbf5722..1f7d142 100644
--- a/fw-update/test/inventory_manager_test.cpp
+++ b/fw-update/test/inventory_manager_test.cpp
@@ -1,6 +1,7 @@
 #include "common/utils.hpp"
 #include "fw-update/inventory_manager.hpp"
 #include "requester/test/mock_request.hpp"
+#include "test/test_instance_id.hpp"
 
 #include <libpldm/firmware_update.h>
 
@@ -14,9 +15,9 @@
 {
   protected:
     InventoryManagerTest() :
-        event(sdeventplus::Event::get_default()),
+        event(sdeventplus::Event::get_default()), instanceIdDb(),
         dbusImplRequester(pldm::utils::DBusHandler::getBus(),
-                          "/xyz/openbmc_project/pldm"),
+                          "/xyz/openbmc_project/pldm", instanceIdDb),
         reqHandler(fd, event, dbusImplRequester, false, 90000, seconds(1), 2,
                    milliseconds(100)),
         inventoryManager(reqHandler, dbusImplRequester, outDescriptorMap,
@@ -25,6 +26,7 @@
 
     int fd = -1;
     sdeventplus::Event event;
+    TestInstanceIdDb instanceIdDb;
     pldm::dbus_api::Requester dbusImplRequester;
     requester::Handler<requester::Request> reqHandler;
     InventoryManager inventoryManager;