Added skeleton for test case setup and cleanup.

src/main/java/sg/com/smartinventory/utility/DataLoader.java

@@ -29,11 +29,21 @@ public DataLoader(CustomerRepository customerRepository, ProductRepository produ
 
         @PostConstruct
         public void loadData() {
+                // Clear all data.
+                clearTableData();
+
+                // Create fake data.
+                generateFakeData();
+        }
+
+        public void clearTableData() {
                 // Clear all data.
                 customerRepository.deleteAll();
                 productRepository.deleteAll();
                 reviewRepository.deleteAll();
+        }
 
+        public void generateFakeData() {
                 // Create fake data.
                 customerRepository.save(new Customer("John", "Doe", "USA", "123 Main St", 123456, 12345678,
                                 "[email protected]"));

src/test/java/sg/com/smartinventory/SmartInventoryApplicationTests.java

@@ -4,6 +4,10 @@
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import org.slf4j.Logger;
@@ -19,6 +23,27 @@ class SmartInventoryApplicationTests {
 	// trace(), debug(), info(), warn(), error().
 	private static final Logger test_logger = LoggerFactory.getLogger(SmartInventoryApplicationTests.class);
 
+	// Test Setup and Teardown configuration.
+	@BeforeAll
+	static void initAll() {
+
+	}
+
+	@AfterAll
+	static void teardownAll() {
+
+	}
+
+	@BeforeEach
+	void init() {
+
+	}
+
+	@AfterEach
+	void teardown() {
+
+	}
+
 	@Test
 	void contextLoads() {
 		test_logger.info("Starting test: " + getCurrentMethodName() + ". ");

src/test/java/sg/com/smartinventory/controllers/CustomerControllerTest.java

@@ -6,7 +6,9 @@
 
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -42,6 +44,16 @@ public class CustomerControllerTest {
         private static final Logger test_logger = LoggerFactory.getLogger(CustomerControllerTest.class);
 
         // Test Setup and Teardown configuration.
+        @BeforeAll
+        static void initAll() {
+
+        }
+
+        @AfterAll
+        static void teardownAll() {
+
+        }
+
         @BeforeEach
         void init() {
 
@@ -57,7 +69,7 @@ void teardown() {
         public void createCustomerTest() throws Exception {
                 test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
-                // Step 1: Create a Customer object
+                // Step 1: Create a Customer object.
                 Customer newCustomer = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
                                 .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();

src/test/java/sg/com/smartinventory/controllers/ProductControllerTest.java

@@ -6,7 +6,9 @@
 
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -42,6 +44,16 @@ public class ProductControllerTest {
         private static final Logger test_logger = LoggerFactory.getLogger(ProductControllerTest.class);
 
         // Test Setup and Teardown configuration.
+        @BeforeAll
+        static void initAll() {
+
+        }
+
+        @AfterAll
+        static void teardownAll() {
+
+        }
+
         @BeforeEach
         void init() {
 
@@ -57,7 +69,7 @@ void teardown() {
         public void createProductTest() throws Exception {
                 test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
-                // Step 1: Create a Product object
+                // Step 1: Create a Product object.
                 Product newProduct = Product.builder().category("Electronics").name("Smartphone")
                                 .description("High-end smartphone with advanced features. ")
                                 .price(999.99).stockQuantity(100).build();

src/test/java/sg/com/smartinventory/controllers/ReviewControllerTest.java

@@ -6,7 +6,9 @@
 
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -42,6 +44,16 @@ public class ReviewControllerTest {
         private static final Logger test_logger = LoggerFactory.getLogger(ReviewControllerTest.class);
 
         // Test Setup and Teardown configuration.
+        @BeforeAll
+        static void initAll() {
+
+        }
+
+        @AfterAll
+        static void teardownAll() {
+
+        }
+
         @BeforeEach
         void init() {
 
@@ -62,7 +74,7 @@ void teardown() {
         public void createReviewTest() throws Exception {
                 test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
 
-                // Step 1: Create a Review object
+                // Step 1: Create a Review object.
                 Review newReview = Review.builder().category("Electronics")
                                 .reviewContent("Great smartphone with excellent features. ").rating(5).customerId(1)
                                 .productId(2).build();
@@ -93,4 +105,124 @@ public void createReviewTest() throws Exception {
                 // test_logger.error("Ending test: createReviewTest. ");
                 test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
         }
+
+        @DisplayName("Get All Reviews")
+        @Test
+        public void getAllReviewsTest() throws Exception {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
+                // Step 1: Create a Review objects.
+                Review newReview = Review.builder().category("Electronics")
+                                .reviewContent("Great smartphone with excellent features. ").rating(5).customerId(1)
+                                .productId(2).build();
+
+                // Step 2: Convert the Java object to JSON using ObjectMapper.
+                String newReviewAsJSON = objectMapper.writeValueAsString(newReview);
+
+                // Step 3: Build the request.
+                RequestBuilder request = MockMvcRequestBuilders.post("/reviews")
+                                .contentType(MediaType.APPLICATION_JSON)
+                                .content(newReviewAsJSON);
+
+                // Step 4: Perform the request and get the response and assert.
+                mockMvc.perform(request)
+                                // MvcResult Result = mockMvc.perform(request)
+                                // .andDo(print -> test_logger.error("Starting Request: createReviewTest. "))
+                                .andExpect(status().isCreated())
+                                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                                .andExpect(jsonPath("$.category").value("Electronics"))
+                                .andExpect(jsonPath("$.rating").value(5));
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
+        }
+
+        @DisplayName("Get One Review")
+        @Test
+        public void getOneReviewTest() throws Exception {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
+                // Step 1: Create a Review object.
+                Review newReview = Review.builder().category("Electronics")
+                                .reviewContent("Great smartphone with excellent features. ").rating(5).customerId(1)
+                                .productId(2).build();
+
+                // Step 2: Convert the Java object to JSON using ObjectMapper.
+                String newReviewAsJSON = objectMapper.writeValueAsString(newReview);
+
+                // Step 3: Build the request.
+                RequestBuilder request = MockMvcRequestBuilders.post("/reviews")
+                                .contentType(MediaType.APPLICATION_JSON)
+                                .content(newReviewAsJSON);
+
+                // Step 4: Perform the request and get the response and assert.
+                mockMvc.perform(request)
+                                // MvcResult Result = mockMvc.perform(request)
+                                // .andDo(print -> test_logger.error("Starting Request: createReviewTest. "))
+                                .andExpect(status().isCreated())
+                                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                                .andExpect(jsonPath("$.category").value("Electronics"))
+                                .andExpect(jsonPath("$.rating").value(5));
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
+        }
+
+        @DisplayName("Update Review")
+        @Test
+        public void updateReviewTest() throws Exception {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
+                // Step 1: Create a Review object.
+                Review newReview = Review.builder().category("Electronics")
+                                .reviewContent("Great smartphone with excellent features. ").rating(5).customerId(1)
+                                .productId(2).build();
+
+                // Step 2: Convert the Java object to JSON using ObjectMapper.
+                String newReviewAsJSON = objectMapper.writeValueAsString(newReview);
+
+                // Step 3: Build the request.
+                RequestBuilder request = MockMvcRequestBuilders.post("/reviews")
+                                .contentType(MediaType.APPLICATION_JSON)
+                                .content(newReviewAsJSON);
+
+                // Step 4: Perform the request and get the response and assert.
+                mockMvc.perform(request)
+                                // MvcResult Result = mockMvc.perform(request)
+                                // .andDo(print -> test_logger.error("Starting Request: createReviewTest. "))
+                                .andExpect(status().isCreated())
+                                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                                .andExpect(jsonPath("$.category").value("Electronics"))
+                                .andExpect(jsonPath("$.rating").value(5));
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
+        }
+
+        @DisplayName("Delete Review")
+        @Test
+        public void deleteReviewTest() throws Exception {
+                test_logger.info("Starting test: " + getCurrentMethodName() + ". ");
+
+                // Step 1: Create a Review object.
+                Review newReview = Review.builder().category("Electronics")
+                                .reviewContent("Great smartphone with excellent features. ").rating(5).customerId(1)
+                                .productId(2).build();
+
+                // Step 2: Convert the Java object to JSON using ObjectMapper.
+                String newReviewAsJSON = objectMapper.writeValueAsString(newReview);
+
+                // Step 3: Build the request.
+                RequestBuilder request = MockMvcRequestBuilders.post("/reviews")
+                                .contentType(MediaType.APPLICATION_JSON)
+                                .content(newReviewAsJSON);
+
+                // Step 4: Perform the request and get the response and assert.
+                mockMvc.perform(request)
+                                // MvcResult Result = mockMvc.perform(request)
+                                // .andDo(print -> test_logger.error("Starting Request: createReviewTest. "))
+                                .andExpect(status().isCreated())
+                                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                                .andExpect(jsonPath("$.category").value("Electronics"))
+                                .andExpect(jsonPath("$.rating").value(5));
+
+                test_logger.info("Ending test: " + getCurrentMethodName() + ". ");
+        }
 }

src/test/java/sg/com/smartinventory/entities/CustomerTest.java

@@ -4,7 +4,9 @@
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -32,6 +34,16 @@ public class CustomerTest {
     private static final Logger test_logger = LoggerFactory.getLogger(CustomerTest.class);
 
     // Test Setup and Teardown configuration.
+    @BeforeAll
+    static void initAll() {
+
+    }
+
+    @AfterAll
+    static void teardownAll() {
+
+    }
+
     @BeforeEach
     void init() {
 

src/test/java/sg/com/smartinventory/entities/ErrorResponseTest.java

@@ -4,7 +4,9 @@
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -23,6 +25,16 @@ public class ErrorResponseTest {
     private static final Logger test_logger = LoggerFactory.getLogger(ErrorResponseTest.class);
 
     // Test Setup and Teardown configuration.
+    @BeforeAll
+    static void initAll() {
+
+    }
+
+    @AfterAll
+    static void teardownAll() {
+
+    }
+
     @BeforeEach
     void init() {
 

src/test/java/sg/com/smartinventory/entities/ProductTest.java

@@ -4,7 +4,9 @@
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -32,6 +34,16 @@ public class ProductTest {
     private static final Logger test_logger = LoggerFactory.getLogger(ProductTest.class);
 
     // Test Setup and Teardown configuration.
+    @BeforeAll
+    static void initAll() {
+
+    }
+
+    @AfterAll
+    static void teardownAll() {
+
+    }
+
     @BeforeEach
     void init() {