diff --git a/libpldmresponder/test/fru_jsons/fru_master/fru_master.json b/libpldmresponder/test/fru_jsons/fru_master/fru_master.json
new file mode 100644
index 0000000..5a87eb7
--- /dev/null
+++ b/libpldmresponder/test/fru_jsons/fru_master/fru_master.json
@@ -0,0 +1,21 @@
+{
+        "FruDBusLookupMap":{
+                        "xyz.openbmc_project.Inventory.Item.Chassis" : 45,
+                        "xyz.openbmc_project.Inventory.Item.Board": 60,
+                        "xyz.openbmc_project.Inventory.Item.PCIeDevice": 61,
+                        "xyz.openbmc_project.Inventory.Item.Board.Motherboard": 64,
+                        "xyz.openbmc_project.Inventory.Item.Dimm": 66,
+                        "xyz.openbmc_project.Inventory.Item.Panel": 69,
+                        "xyz.openbmc_project.Inventory.Item.DiskBackplane": 73,
+                        "xyz.openbmc_project.Inventory.Item.Fan": 93,
+                        "xyz.openbmc_project.Inventory.Item.PowerSupply": 120,
+                        "xyz.openbmc_project.Inventory.Item.Battery": 121,
+                        "xyz.openbmc_project.Inventory.Item.Vrm": 123,
+                        "xyz.openbmc_project.Inventory.Item.Cpu": 135,
+                        "xyz.openbmc_project.Inventory.Item.Bmc": 137,
+                        "xyz.openbmc_project.Inventory.Item.Connector": 185,
+                        "xyz.openbmc_project.Inventory.Item.PCIeSlot": 186,
+                        "xyz.openbmc_project.Inventory.Item.System": 11521,
+                        "xyz.openbmc_project.Inventory.Item.Tpm": 24576
+           }
+}