Fixed test cases affected by the updated ER Diagram.

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

@@ -42,7 +42,7 @@ public void createCustomerTest() throws Exception {
 
                 // Step 1: Create a Customer object
                 Customer newCustomer = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
 
                 // Step 2: Convert the Java object to JSON using ObjectMapper.

src/test/java/sg/com/smartinventory/integration/IntegrationTest.java

@@ -48,7 +48,7 @@ public class IntegrationTest {
         public void createCustomerTest() {
                 // 1. Setup.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
 
                 // mock the save method of the customer repository
@@ -69,10 +69,10 @@ public void createCustomerTest() {
         public void runIntegratedTest() throws Exception {
                 // Step 1: Create the test objects.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
                 Customer testObject2 = Customer.builder().firstName("Jackie").lastName("Chang").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
 
                 // Step 2: Convert the Java objects to JSON using ObjectMapper.

src/test/java/sg/com/smartinventory/services/CustomerServiceImplTest.java

@@ -31,7 +31,7 @@ public void createCustomerTest() {
         // 1. SETUP
         // Create a new customer.
         Customer customer = Customer.builder().firstName("John").lastName("Wick").country("USA").address("123 Main St")
-                .postalCode(123456).mobileNumber(12345678).email("[email protected]").build();
+                .postalCode(123456).phoneNumber(12345678).email("[email protected]").build();
 
         // Mock the save method of the customer repository.
         when((customerRepository.save(customer))).thenReturn(customer);

src/test/java/sg/com/smartinventory/useCases/UseCaseTest.java

@@ -48,7 +48,7 @@ public class UseCaseTest {
         public void createCustomerTest() {
                 // 1. Setup.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
 
                 // mock the save method of the customer repository
@@ -69,10 +69,10 @@ public void createCustomerTest() {
         public void runIntegratedTest() throws Exception {
                 // Step 1: Create the test objects.
                 Customer testObject1 = Customer.builder().firstName("Jackie").lastName("Chan").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
                 Customer testObject2 = Customer.builder().firstName("Jackie").lastName("Chang").country("Hong Kong")
-                                .address("123 HK St").postalCode(654321).mobileNumber(87654321)
+                                .address("123 HK St").postalCode(654321).phoneNumber(87654321)
                                 .email("[email protected]").build();
 
                 // Step 2: Convert the Java objects to JSON using ObjectMapper.