diff --git a/oem/ibm/test/host_bmc_lamp_test.cpp b/oem/ibm/test/host_bmc_lamp_test.cpp
new file mode 100644
index 0000000..7d75649
--- /dev/null
+++ b/oem/ibm/test/host_bmc_lamp_test.cpp
@@ -0,0 +1,51 @@
+#include "oem/ibm/host-bmc/host_lamp_test.hpp"
+#include "pldmd/dbus_impl_requester.hpp"
+#include "test/test_instance_id.hpp"
+
+#include <string.h>
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+using namespace pldm::led;
+using ::testing::DoAll;
+using ::testing::Return;
+using ::testing::SetArgPointee;
+
+class MockLampTest : public HostLampTest
+{
+  public:
+    MockLampTest(sdbusplus::bus::bus& bus, const std::string& objPath,
+                 uint8_t mctp_eid, pldm::InstanceIdDb& instanceIdDb,
+                 pldm_pdr* repo,
+                 pldm::requester::Handler<pldm::requester::Request>* handler) :
+        HostLampTest(bus, objPath, mctp_eid, instanceIdDb, repo, handler)
+    {}
+
+    MOCK_METHOD(uint16_t, getEffecterID, (), (override));
+    MOCK_METHOD(uint8_t, setHostStateEffecter, (uint16_t effecterId),
+                (override));
+};
+
+TEST(TestLamp, Asserted)
+{
+    sdbusplus::bus::bus bus = sdbusplus::bus::new_default();
+    TestInstanceIdDb instanceIdDb;
+
+    MockLampTest lampTest(bus, "/xyz/openbmc_project/led/groups/host_lamp_test",
+                          0, instanceIdDb, nullptr, nullptr);
+
+    lampTest.asserted(false);
+    EXPECT_EQ(lampTest.asserted(), false);
+
+    EXPECT_CALL(lampTest, getEffecterID())
+        .Times(2)
+        .WillOnce(Return(0))
+        .WillOnce(Return(1));
+    EXPECT_CALL(lampTest, setHostStateEffecter(1)).Times(1).WillOnce(Return(0));
+
+    ASSERT_THROW(lampTest.asserted(true), sdbusplus::exception::SdBusError);
+
+    lampTest.asserted(true);
+    EXPECT_EQ(lampTest.asserted(), true);
+}