diff --git a/phosphor-regulators/test/actions/pmbus_read_sensor_action_tests.cpp b/phosphor-regulators/test/actions/pmbus_read_sensor_action_tests.cpp
index f907e79..d0f1398 100644
--- a/phosphor-regulators/test/actions/pmbus_read_sensor_action_tests.cpp
+++ b/phosphor-regulators/test/actions/pmbus_read_sensor_action_tests.cpp
@@ -299,6 +299,9 @@
             EXPECT_STREQ(
                 pe.what(),
                 "PMBusError: VOUT_MODE contains unsupported data format");
+            EXPECT_EQ(pe.getDeviceID(), "reg1");
+            EXPECT_EQ(pe.getInventoryPath(), "/xyz/openbmc_project/inventory/"
+                                             "system/chassis/motherboard/reg1");
         }
         catch (...)
         {
diff --git a/phosphor-regulators/test/actions/pmbus_write_vout_command_action_tests.cpp b/phosphor-regulators/test/actions/pmbus_write_vout_command_action_tests.cpp
index d515cad..825b5ec 100644
--- a/phosphor-regulators/test/actions/pmbus_write_vout_command_action_tests.cpp
+++ b/phosphor-regulators/test/actions/pmbus_write_vout_command_action_tests.cpp
@@ -358,6 +358,9 @@
             EXPECT_STREQ(
                 pe.what(),
                 "PMBusError: VOUT_MODE contains unsupported data format");
+            EXPECT_EQ(pe.getDeviceID(), "reg1");
+            EXPECT_EQ(pe.getInventoryPath(), "/xyz/openbmc_project/inventory/"
+                                             "system/chassis/motherboard/reg1");
         }
         catch (...)
         {
diff --git a/phosphor-regulators/test/pmbus_error_tests.cpp b/phosphor-regulators/test/pmbus_error_tests.cpp
index 670df71..3e455ba 100644
--- a/phosphor-regulators/test/pmbus_error_tests.cpp
+++ b/phosphor-regulators/test/pmbus_error_tests.cpp
@@ -21,14 +21,38 @@
 
 TEST(PMBusErrorTests, Constructor)
 {
-    PMBusError error("VOUT_MODE contains unsupported data format");
+    PMBusError error(
+        "VOUT_MODE contains unsupported data format", "vdd_reg",
+        "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg2");
+    EXPECT_EQ(error.getDeviceID(), "vdd_reg");
+    EXPECT_EQ(error.getInventoryPath(),
+              "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg2");
     EXPECT_STREQ(error.what(),
                  "PMBusError: VOUT_MODE contains unsupported data format");
 }
 
+TEST(PMBusErrorTests, GetDeviceID)
+{
+    PMBusError error(
+        "VOUT_MODE contains unsupported data format", "vdd_reg",
+        "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg2");
+    EXPECT_EQ(error.getDeviceID(), "vdd_reg");
+}
+
+TEST(PMBusErrorTests, GetInventoryPath)
+{
+    PMBusError error(
+        "VOUT_MODE contains unsupported data format", "vdd_reg",
+        "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg2");
+    EXPECT_EQ(error.getInventoryPath(),
+              "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg2");
+}
+
 TEST(PMBusErrorTests, What)
 {
-    PMBusError error("Unable to convert value to linear data format");
+    PMBusError error(
+        "VOUT_MODE contains unsupported data format", "vdd_reg",
+        "/xyz/openbmc_project/inventory/system/chassis/motherboard/reg2");
     EXPECT_STREQ(error.what(),
-                 "PMBusError: Unable to convert value to linear data format");
+                 "PMBusError: VOUT_MODE contains unsupported data format");
 }