diff --git a/src/test/java/com/example/lcf/LcfMappingRulesTest.java b/src/test/java/com/example/lcf/LcfMappingRulesTest.java
new file mode 100644
index 0000000..e190e70
--- /dev/null
+++ b/src/test/java/com/example/lcf/LcfMappingRulesTest.java
@@ -0,0 +1,24 @@
+package com.example.lcf;
+
+import org.junit.jupiter.api.Test;
+import static org.mockito.Mockito.*;
+import static org.junit.jupiter.api.Assertions.*;
+
+class LcfMappingRulesTest {
+    @Test
+    void testLcfTry() {
+        LcfMappingRules rules = new LcfMappingRules();
+        Runnable action = mock(Runnable.class);
+        doThrow(new RuntimeException("Test Exception")).when(action).run();
+
+        rules.lcfTry(action);
+        // 예외가 발생했는지 확인하는 로직 추가
+    }
+
+    @Test
+    void testPerformDecimalOperation() {
+        LcfMappingRules rules = new LcfMappingRules();
+        double result = rules.performDecimalOperation(5.0, 3.0);
+        assertEquals(8.0, result);
+    }
+}