diff --git a/test/openpower-pels/mocks.hpp b/test/openpower-pels/mocks.hpp
index 1116988..11baa4b 100644
--- a/test/openpower-pels/mocks.hpp
+++ b/test/openpower-pels/mocks.hpp
@@ -45,6 +45,8 @@
                 (const override));
     MOCK_METHOD(std::vector<uint8_t>, getSystemIMKeyword, (), (const override));
     MOCK_METHOD(bool, getQuiesceOnError, (), (const override));
+    MOCK_METHOD(void, setCriticalAssociation, (const std::string&),
+                (const override));
 
     void changeHostState(bool newState)
     {
diff --git a/test/openpower-pels/service_indicators_test.cpp b/test/openpower-pels/service_indicators_test.cpp
index 410ee44..2c53fd9 100644
--- a/test/openpower-pels/service_indicators_test.cpp
+++ b/test/openpower-pels/service_indicators_test.cpp
@@ -274,6 +274,10 @@
                     setFunctional("/system/chassis/processor", false))
             .Times(1);
 
+        EXPECT_CALL(dataIface,
+                    setCriticalAssociation("/system/chassis/processor"))
+            .Times(1);
+
         auto data = pelFactory(1, 'O', 0x20, 0xA400, 500);
         PEL pel{data};
 
@@ -336,4 +340,22 @@
 
         lightPath.activate(pel);
     }
+
+    // Test setCriticalAssociation fail
+    {
+        MockDataInterface dataIface;
+        service_indicators::LightPath lightPath{dataIface};
+
+        EXPECT_CALL(dataIface, getInventoryFromLocCode("U42", 0, true))
+            .WillOnce(Return("/system/chassis/processor"));
+
+        EXPECT_CALL(dataIface,
+                    setCriticalAssociation("/system/chassis/processor"))
+            .WillOnce(Throw(std::runtime_error("Fail")));
+
+        auto data = pelFactory(1, 'O', 0x20, 0xA400, 500);
+        PEL pel{data};
+
+        lightPath.activate(pel);
+    }
 }