diff --git a/src/main/java/sg/com/smartinventory/utility/Utility.java b/src/main/java/sg/com/smartinventory/utility/Utility.java
new file mode 100644
index 0000000..bf168a5
--- /dev/null
+++ b/src/main/java/sg/com/smartinventory/utility/Utility.java
@@ -0,0 +1,105 @@
+package sg.com.smartinventory.utility;
+
+public class Utility {
+    /**
+     * Get the method name of the caller.
+     * <p>
+     * Java 9 introduced the Stack-Walking API to traverse the JVM stack frames in a
+     * lazy and efficient manner.
+     * First, we get a StackWalker instance using the getInstance() factory method.
+     * Then we use the walk() method to traverse the stack frames from the top to
+     * the bottom:
+     * <p>
+     * <ul>
+     * <li>The walk() method can convert a stream of stack frames —
+     * Stream<StackFrame> — to anything.
+     * <li>The first element in the given stream is the top frame on the stack.
+     * <li>The top frame on the stack always represents the currently executing
+     * method.
+     * </ul>
+     * <p>
+     * Therefore, if we get the first element from the stream, we’ll know the
+     * currently executing method details. More specifically, we can use
+     * StackFrame.getMethodName() to find the method name.
+     * <p>
+     * Compared to other approaches (more on them later), the Stack-Walking API has
+     * a few advantages:
+     * <p>
+     * <ul>
+     * <ul>
+     * No need to create a dummy anonymous inner class instance — new
+     * Object().getClass() {}
+     * <ul>
+     * No need to create a dummy exception — new Throwable()
+     * <ul>
+     * No need to eagerly capture the whole stacktrace, which can be costly
+     * <p>
+     * <ul>
+     * On the contrary, the StackWalker only walks the stack one by one in a lazy
+     * fashion. In this case, it only fetches the top frame, as opposed to the
+     * stacktrace approach which captures all the frames eagerly.
+     * 
+     * @param levelsUp The number of levels up the stack trace.
+     * 
+     * @return The method name of the caller.
+     */
+    public static String getMethodName(int levelsUp) {
+        // Check if the levelsUp is less than 0. If it is, throw an exception.
+        if (levelsUp < 0) {
+            throw new IllegalArgumentException("levelsUp must be greater than or equal to 0. ");
+        }
+
+        // Get the method name of the caller. The top is this function name itself, so
+        // it should be skipped.
+        return StackWalker.getInstance()
+                .walk(s -> s.skip(1 + levelsUp).findFirst())
+                .get()
+                .getMethodName();
+    }
+
+    /**
+     * Get the current method name.
+     * 
+     * @return The current method name.
+     * 
+     * @see #getMethodName()
+     */
+    public static String getCurrentMethodName() {
+        // Get the method name of the caller. You need to skip 1 level up to get the
+        // current method name as you are calling a base function below it.
+        return getMethodName(1);
+    }
+
+    /**
+     * Get the caller method name.
+     * 
+     * @return The caller method name.
+     * 
+     * @see #getMethodName()
+     */
+    public static String getCallerMethodName() {
+        // Get the method name of the caller. You need to skip 2 level up to get the
+        // current method name as you are calling a base function below it.
+        return getMethodName(2);
+    }
+
+    /**
+     * Get the caller method name.
+     * 
+     * @param levelsUp The number of levels up the stack trace.
+     * 
+     * @return The caller method name.
+     * 
+     * @see #getCallerMethodName()
+     */
+    public static String getCallerMethodName(int levelsUp) {
+        // Check if the levelsUp is less than 0. If it is, throw an exception.
+        if (levelsUp < 0) {
+            throw new IllegalArgumentException("levelsUp must be greater than or equal to 0. ");
+        }
+
+        // Get the method name of the caller. You need to skip 1 level up to get the
+        // current method name as you are calling a base function below it.
+        return getMethodName(2 + levelsUp);
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/SmartInventoryApplicationTests.java b/src/test/java/sg/com/smartinventory/SmartInventoryApplicationTests.java
index fdac9f6..3558490 100644
--- a/src/test/java/sg/com/smartinventory/SmartInventoryApplicationTests.java
+++ b/src/test/java/sg/com/smartinventory/SmartInventoryApplicationTests.java
@@ -1,13 +1,28 @@
 package sg.com.smartinventory;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
 import org.junit.jupiter.api.Test;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.boot.test.context.SpringBootTest;
 
 @SpringBootTest
 class SmartInventoryApplicationTests {
+	/// Name this according to your class name.
+	// The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+	// INFO, WARN, ERROR, with each of these having a corresponding logging method:
+	// trace(), debug(), info(), warn(), error().
+	private static final Logger test_logger = LoggerFactory.getLogger(SmartInventoryApplicationTests.class);
+
 	@Test
 	void contextLoads() {
+		test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
+		test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
 	}
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/controllers/CustomerControllerTest.java b/src/test/java/sg/com/smartinventory/controllers/CustomerControllerTest.java
index a3ab485..ac43068 100644
--- a/src/test/java/sg/com/smartinventory/controllers/CustomerControllerTest.java
+++ b/src/test/java/sg/com/smartinventory/controllers/CustomerControllerTest.java
@@ -1,7 +1,13 @@
 package sg.com.smartinventory.controllers;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
@@ -35,10 +41,21 @@ public class CustomerControllerTest {
         // trace(), debug(), info(), warn(), error().
         private static final Logger test_logger = LoggerFactory.getLogger(CustomerControllerTest.class);
 
-        @DisplayName("Create customer")
+        // Test Setup and Teardown configuration.
+        @BeforeEach
+        void init() {
+
+        }
+
+        @AfterEach
+        void teardown() {
+
+        }
+
+        @DisplayName("Create Customer")
         @Test
         public void createCustomerTest() throws Exception {
-                test_logger.info("Starting test: createCustomerTest. ");
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
                 // Step 1: Create a Customer object
                 Customer newCustomer = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
@@ -60,6 +77,6 @@ public void createCustomerTest() throws Exception {
                                 .andExpect(jsonPath("$.firstName").value("Jackie"))
                                 .andExpect(jsonPath("$.lastName").value("Chan"));
 
-                test_logger.info("Ending test: createCustomerTest. ");
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/controllers/ProductControllerTest.java b/src/test/java/sg/com/smartinventory/controllers/ProductControllerTest.java
index b2955f4..2d38633 100644
--- a/src/test/java/sg/com/smartinventory/controllers/ProductControllerTest.java
+++ b/src/test/java/sg/com/smartinventory/controllers/ProductControllerTest.java
@@ -1,7 +1,13 @@
 package sg.com.smartinventory.controllers;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
@@ -33,12 +39,23 @@ public class ProductControllerTest {
         // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
         // INFO, WARN, ERROR, with each of these having a corresponding logging method:
         // trace(), debug(), info(), warn(), error().
-        private static final Logger test_logger = LoggerFactory.getLogger(CustomerControllerTest.class);
+        private static final Logger test_logger = LoggerFactory.getLogger(ProductControllerTest.class);
+
+        // Test Setup and Teardown configuration.
+        @BeforeEach
+        void init() {
+
+        }
+
+        @AfterEach
+        void teardown() {
+
+        }
 
-        @DisplayName("Create product")
+        @DisplayName("Create Product")
         @Test
         public void createProductTest() throws Exception {
-                test_logger.info("Starting test: createProductTest. ");
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
                 // Step 1: Create a Product object
                 Product newProduct = Product.builder().category("Electronics").name("Smartphone")
@@ -60,6 +77,6 @@ public void createProductTest() throws Exception {
                                 .andExpect(jsonPath("$.category").value("Electronics"))
                                 .andExpect(jsonPath("$.name").value("Smartphone"));
 
-                test_logger.info("Ending test: createProductTest. ");
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/controllers/ReviewControllerTest.java b/src/test/java/sg/com/smartinventory/controllers/ReviewControllerTest.java
index d7c0cde..92c140f 100644
--- a/src/test/java/sg/com/smartinventory/controllers/ReviewControllerTest.java
+++ b/src/test/java/sg/com/smartinventory/controllers/ReviewControllerTest.java
@@ -1,7 +1,13 @@
 package sg.com.smartinventory.controllers;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
@@ -13,7 +19,6 @@
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.http.MediaType;
 import org.springframework.test.web.servlet.MockMvc;
-import org.springframework.test.web.servlet.MvcResult;
 import org.springframework.test.web.servlet.RequestBuilder;
 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
 
@@ -30,39 +35,32 @@ public class ReviewControllerTest {
         @Autowired
         private ObjectMapper objectMapper;
 
-        /**
-         * Convert JSON Result to object.
-         * 
-         * @param result The contents.
-         * @param tClass The expected object class.
-         * @return The result as a class object.
-         * @throws Exception
-         */
-        public <T> T fromJsonResult(MvcResult result, Class<T> tClass) throws Exception {
-                return this.objectMapper.readValue(result.getResponse().getContentAsString(), tClass);
+        /// Name this according to your class name.
+        // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+        // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+        // trace(), debug(), info(), warn(), error().
+        private static final Logger test_logger = LoggerFactory.getLogger(ReviewControllerTest.class);
+
+        // Test Setup and Teardown configuration.
+        @BeforeEach
+        void init() {
+
+        }
+
+        @AfterEach
+        void teardown() {
+
         }
 
         /**
-         * Convert object to JSON bytes.
+         * Test the creation of a Review.
          * 
-         * @param object The object to JSON-ify.
-         * @return Byte array with JSON representation.
          * @throws Exception
          */
-        public byte[] toJson(Object object) throws Exception {
-                return this.objectMapper.writeValueAsString(object).getBytes();
-        }
-
-        /// Name this according to your class name.
-        // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
-        // INFO, WARN, ERROR, with each of these having a corresponding logging method:
-        // trace(), debug(), info(), warn(), error().
-        private static final Logger test_logger = LoggerFactory.getLogger(CustomerControllerTest.class);
-
-        @DisplayName("Create review")
+        @DisplayName("Create Review")
         @Test
         public void createReviewTest() throws Exception {
-                test_logger.info("Starting test: createReviewTest. ");
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
                 // Step 1: Create a Review object
                 Review newReview = Review.builder().category("Electronics")
@@ -93,6 +91,6 @@ public void createReviewTest() throws Exception {
                 // Review ReviewObject = fromJsonResult(Result, Review.class);
 
                 // test_logger.error("Ending test: createReviewTest. ");
-                test_logger.info("Ending test: createReviewTest. ");
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/sg/com/smartinventory/entities/CustomerTest.java b/src/test/java/sg/com/smartinventory/entities/CustomerTest.java
index 350c448..b8d16f2 100644
--- a/src/test/java/sg/com/smartinventory/entities/CustomerTest.java
+++ b/src/test/java/sg/com/smartinventory/entities/CustomerTest.java
@@ -1,11 +1,20 @@
 package sg.com.smartinventory.entities;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import sg.com.smartinventory.repositories.CustomerRepository;
 import sg.com.smartinventory.serviceImpls.CustomerServiceImpl;
 
@@ -16,9 +25,28 @@ public class CustomerTest {
     @InjectMocks
     CustomerServiceImpl customerService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(CustomerTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @DisplayName("Customer Test")
     @Test
     public void customerTest() throws Exception {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/entities/ErrorResponseTest.java b/src/test/java/sg/com/smartinventory/entities/ErrorResponseTest.java
index ae73c98..e77bd62 100644
--- a/src/test/java/sg/com/smartinventory/entities/ErrorResponseTest.java
+++ b/src/test/java/sg/com/smartinventory/entities/ErrorResponseTest.java
@@ -1,15 +1,43 @@
 package sg.com.smartinventory.entities;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class ErrorResponseTest {
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(ErrorResponseTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @DisplayName("Error Response Test")
     @Test
     public void errorResponseTest() throws Exception {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/entities/ProductTest.java b/src/test/java/sg/com/smartinventory/entities/ProductTest.java
index 0dcbce6..1ec09a1 100644
--- a/src/test/java/sg/com/smartinventory/entities/ProductTest.java
+++ b/src/test/java/sg/com/smartinventory/entities/ProductTest.java
@@ -1,11 +1,20 @@
 package sg.com.smartinventory.entities;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import sg.com.smartinventory.repositories.ProductRepository;
 // import sg.com.smartinventory.serviceImpls.ProductServiceImpl;
 
@@ -16,9 +25,28 @@ public class ProductTest {
     // @InjectMocks
     // ProductServiceImpl productService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(ProductTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @DisplayName("Product Test")
     @Test
     public void productTest() throws Exception {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/entities/ReviewTest.java b/src/test/java/sg/com/smartinventory/entities/ReviewTest.java
index b24d7ec..43479ff 100644
--- a/src/test/java/sg/com/smartinventory/entities/ReviewTest.java
+++ b/src/test/java/sg/com/smartinventory/entities/ReviewTest.java
@@ -1,11 +1,20 @@
 package sg.com.smartinventory.entities;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import sg.com.smartinventory.repositories.ReviewRepository;
 // import sg.com.smartinventory.serviceImpls.ReviewServiceImpl;
 
@@ -16,9 +25,28 @@ public class ReviewTest {
     // @InjectMocks
     // ReviewServiceImpl reviewService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(ReviewTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @DisplayName("Review Test")
     @Test
     public void reviewTest() throws Exception {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/integration/IntegrationTest.java b/src/test/java/sg/com/smartinventory/integration/IntegrationTest.java
index 459c31b..8e9f383 100644
--- a/src/test/java/sg/com/smartinventory/integration/IntegrationTest.java
+++ b/src/test/java/sg/com/smartinventory/integration/IntegrationTest.java
@@ -1,6 +1,8 @@
 package sg.com.smartinventory.integration;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
 
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -8,12 +10,17 @@
 
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -43,9 +50,28 @@ public class IntegrationTest {
         @Autowired
         private ObjectMapper objectMapper;
 
+        /// Name this according to your class name.
+        // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+        // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+        // trace(), debug(), info(), warn(), error().
+        private static final Logger test_logger = LoggerFactory.getLogger(IntegrationTest.class);
+
+        // Test Setup and Teardown configuration.
+        @BeforeEach
+        void init() {
+
+        }
+
+        @AfterEach
+        void teardown() {
+
+        }
+
         @DisplayName("Integration Test 1")
         @Test
         public void createCustomerTest() {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
                 // 1. Setup.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
                                 .address("123 HK St").postalCode(654321).phoneNumber(87654321)
@@ -62,11 +88,15 @@ public void createCustomerTest() {
 
                 // Verify that the save method of the customer repository is called once.
                 verify(customerRepository, times(1)).save(testObject1);
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
 
         @DisplayName("Integration Test 2")
         @Test
         public void runIntegratedTest() throws Exception {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
                 // Step 1: Create the test objects.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
                                 .address("123 HK St").postalCode(654321).phoneNumber(87654321)
@@ -98,5 +128,7 @@ public void runIntegratedTest() throws Exception {
                                 .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                                 .andExpect(jsonPath("$.firstName").value("Jackie"))
                                 .andExpect(jsonPath("$.lastName").value("Chang"));
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/services/CustomerServiceImplTest.java b/src/test/java/sg/com/smartinventory/services/CustomerServiceImplTest.java
index ebc57ea..e60a73c 100644
--- a/src/test/java/sg/com/smartinventory/services/CustomerServiceImplTest.java
+++ b/src/test/java/sg/com/smartinventory/services/CustomerServiceImplTest.java
@@ -1,16 +1,23 @@
 package sg.com.smartinventory.services;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.boot.test.context.SpringBootTest;
 
 import sg.com.smartinventory.entities.Customer;
@@ -25,8 +32,26 @@ public class CustomerServiceImplTest {
     @InjectMocks
     CustomerServiceImpl customerService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(CustomerServiceImplTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @Test
     public void createCustomerTest() {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
         // 1. SETUP
         // Create a new customer.
@@ -44,5 +69,7 @@ public void createCustomerTest() {
 
         // Verify that the save method of the customer repository is called once only.
         verify(customerRepository, times(1)).save(customer);
+
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/services/ProductServiceImplTest.java b/src/test/java/sg/com/smartinventory/services/ProductServiceImplTest.java
index 516e6c1..9f2b3e7 100644
--- a/src/test/java/sg/com/smartinventory/services/ProductServiceImplTest.java
+++ b/src/test/java/sg/com/smartinventory/services/ProductServiceImplTest.java
@@ -1,16 +1,23 @@
 package sg.com.smartinventory.services;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.boot.test.context.SpringBootTest;
 
 import sg.com.smartinventory.entities.Product;
@@ -25,8 +32,26 @@ public class ProductServiceImplTest {
     @InjectMocks
     ProductServiceImpl productService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(ProductServiceImplTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @Test
     public void createProductTest() {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
         // 1. SETUP
         // Create a new product.
@@ -45,5 +70,7 @@ public void createProductTest() {
 
         // Verify that the save method of the product repository is called once only.
         verify(productRepository, times(1)).save(product);
+
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/services/ReviewServiceImplTest.java b/src/test/java/sg/com/smartinventory/services/ReviewServiceImplTest.java
index a13ebd9..6d85aac 100644
--- a/src/test/java/sg/com/smartinventory/services/ReviewServiceImplTest.java
+++ b/src/test/java/sg/com/smartinventory/services/ReviewServiceImplTest.java
@@ -1,16 +1,23 @@
 package sg.com.smartinventory.services;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
 
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.boot.test.context.SpringBootTest;
 
 import sg.com.smartinventory.entities.Review;
@@ -25,8 +32,26 @@ public class ReviewServiceImplTest {
     @InjectMocks
     ReviewServiceImpl reviewService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(ReviewServiceImplTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @Test
     public void createReviewTest() {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
         // 1. SETUP
         // Create a new review.
@@ -45,5 +70,7 @@ public void createReviewTest() {
 
         // Verify that the save method of the review repository is called once only.
         verify(reviewRepository, times(1)).save(review);
+
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/useCases/UseCaseTest.java b/src/test/java/sg/com/smartinventory/useCases/UseCaseTest.java
index 3190eb4..12c80a0 100644
--- a/src/test/java/sg/com/smartinventory/useCases/UseCaseTest.java
+++ b/src/test/java/sg/com/smartinventory/useCases/UseCaseTest.java
@@ -1,6 +1,8 @@
 package sg.com.smartinventory.useCases;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
 
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -8,12 +10,17 @@
 
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -43,9 +50,28 @@ public class UseCaseTest {
         @Autowired
         private ObjectMapper objectMapper;
 
+        /// Name this according to your class name.
+        // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+        // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+        // trace(), debug(), info(), warn(), error().
+        private static final Logger test_logger = LoggerFactory.getLogger(UseCaseTest.class);
+
+        // Test Setup and Teardown configuration.
+        @BeforeEach
+        void init() {
+
+        }
+
+        @AfterEach
+        void teardown() {
+
+        }
+
         @DisplayName("Use Case Test 1")
         @Test
         public void createCustomerTest() {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
                 // 1. Setup.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
                                 .address("123 HK St").postalCode(654321).phoneNumber(87654321)
@@ -62,11 +88,15 @@ public void createCustomerTest() {
 
                 // Verify that the save method of the customer repository is called once.
                 verify(customerRepository, times(1)).save(testObject1);
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
 
         @DisplayName("Use Case Test 2")
         @Test
         public void runIntegratedTest() throws Exception {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
                 // Step 1: Create the test objects.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
                                 .address("123 HK St").postalCode(654321).phoneNumber(87654321)
@@ -98,5 +128,7 @@ public void runIntegratedTest() throws Exception {
                                 .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                                 .andExpect(jsonPath("$.firstName").value("Jackie"))
                                 .andExpect(jsonPath("$.lastName").value("Chang"));
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/utility/DataLoaderTest.java b/src/test/java/sg/com/smartinventory/utility/DataLoaderTest.java
index 1def923..36fb8e6 100644
--- a/src/test/java/sg/com/smartinventory/utility/DataLoaderTest.java
+++ b/src/test/java/sg/com/smartinventory/utility/DataLoaderTest.java
@@ -1,11 +1,20 @@
 package sg.com.smartinventory.utility;
 
+import static sg.com.smartinventory.utility.Utility.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import sg.com.smartinventory.repositories.CustomerRepository;
 // import sg.com.smartinventory.serviceImpls.CustomerServiceImpl;
 import sg.com.smartinventory.repositories.ProductRepository;
@@ -24,9 +33,28 @@ public class DataLoaderTest {
     // ProductServiceImpl productService;
     // ReviewServiceImpl reviewService;
 
+    /// Name this according to your class name.
+    // The Logback library defines 5 log levels in order of priority: TRACE, DEBUG,
+    // INFO, WARN, ERROR, with each of these having a corresponding logging method:
+    // trace(), debug(), info(), warn(), error().
+    private static final Logger test_logger = LoggerFactory.getLogger(DataLoaderTest.class);
+
+    // Test Setup and Teardown configuration.
+    @BeforeEach
+    void init() {
+
+    }
+
+    @AfterEach
+    void teardown() {
+
+    }
+
     @DisplayName("DataLoader Test")
     @Test
     public void dataLoaderTest() throws Exception {
+        test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
+        test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
     }
 }
\ No newline at end of file
diff --git a/src/test/java/sg/com/smartinventory/utility/Utility.java b/src/test/java/sg/com/smartinventory/utility/Utility.java
new file mode 100644
index 0000000..b96e1b6
--- /dev/null
+++ b/src/test/java/sg/com/smartinventory/utility/Utility.java
@@ -0,0 +1,138 @@
+package sg.com.smartinventory.utility;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.web.servlet.MvcResult;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class Utility {
+    @Autowired
+    private static ObjectMapper objectMapper;
+
+    /**
+     * Get the method name of the caller.
+     * <p>
+     * Java 9 introduced the Stack-Walking API to traverse the JVM stack frames in a
+     * lazy and efficient manner.
+     * First, we get a StackWalker instance using the getInstance() factory method.
+     * Then we use the walk() method to traverse the stack frames from the top to
+     * the bottom:
+     * <p>
+     * <ul>
+     * <li>The walk() method can convert a stream of stack frames —
+     * Stream<StackFrame> — to anything.
+     * <li>The first element in the given stream is the top frame on the stack.
+     * <li>The top frame on the stack always represents the currently executing
+     * method.
+     * </ul>
+     * <p>
+     * Therefore, if we get the first element from the stream, we’ll know the
+     * currently executing method details. More specifically, we can use
+     * StackFrame.getMethodName() to find the method name.
+     * <p>
+     * Compared to other approaches (more on them later), the Stack-Walking API has
+     * a few advantages:
+     * <p>
+     * <ul>
+     * <ul>
+     * No need to create a dummy anonymous inner class instance — new
+     * Object().getClass() {}
+     * <ul>
+     * No need to create a dummy exception — new Throwable()
+     * <ul>
+     * No need to eagerly capture the whole stacktrace, which can be costly
+     * <p>
+     * <ul>
+     * On the contrary, the StackWalker only walks the stack one by one in a lazy
+     * fashion. In this case, it only fetches the top frame, as opposed to the
+     * stacktrace approach which captures all the frames eagerly.
+     * 
+     * @param levelsUp The number of levels up the stack trace.
+     * 
+     * @return The method name of the caller.
+     */
+    public static String getMethodName(int levelsUp) {
+        // Check if the levelsUp is less than 0. If it is, throw an exception.
+        if (levelsUp < 0) {
+            throw new IllegalArgumentException("levelsUp must be greater than or equal to 0. ");
+        }
+
+        // Get the method name of the caller. The top is this function name itself, so
+        // it should be skipped.
+        return StackWalker.getInstance()
+                .walk(s -> s.skip(1 + levelsUp).findFirst())
+                .get()
+                .getMethodName();
+    }
+
+    /**
+     * Get the current method name.
+     * 
+     * @return The current method name.
+     * 
+     * @see #getMethodName()
+     */
+    public static String getCurrentMethodName() {
+        // Get the method name of the caller. You need to skip 1 level up to get the
+        // current method name as you are calling a base function below it.
+        return getMethodName(1);
+    }
+
+    /**
+     * Get the caller method name.
+     * 
+     * @return The caller method name.
+     * 
+     * @see #getMethodName()
+     */
+    public static String getCallerMethodName() {
+        // Get the method name of the caller. You need to skip 2 level up to get the
+        // current method name as you are calling a base function below it.
+        return getMethodName(2);
+    }
+
+    /**
+     * Get the caller method name.
+     * 
+     * @param levelsUp The number of levels up the stack trace.
+     * 
+     * @return The caller method name.
+     * 
+     * @see #getCallerMethodName()
+     */
+    public static String getCallerMethodName(int levelsUp) {
+        // Check if the levelsUp is less than 0. If it is, throw an exception.
+        if (levelsUp < 0) {
+            throw new IllegalArgumentException("levelsUp must be greater than or equal to 0. ");
+        }
+
+        // Get the method name of the caller. You need to skip 1 level up to get the
+        // current method name as you are calling a base function below it.
+        return getMethodName(2 + levelsUp);
+    }
+
+    /**
+     * Convert JSON Result to object.
+     * 
+     * @param result The contents.
+     * @param tClass The expected object class.
+     * 
+     * @return The result as a class object.
+     * @throws Exception
+     */
+    public static <T> T fromJsonResult(MvcResult result, Class<T> tClass) throws Exception {
+        return objectMapper.readValue(result.getResponse().getContentAsString(), tClass);
+    }
+
+    /**
+     * Convert object to JSON bytes.
+     * 
+     * @param object The object to JSON-ify.
+     * 
+     * @return Byte array with JSON representation.
+     * @throws Exception
+     */
+    public static byte[] toJson(Object object) throws Exception {
+        return objectMapper.writeValueAsString(object).getBytes();
+    }
+}
\ No newline at end of file