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* BAEL-6830 example changed based on editor review comments

* BAEL-6830 example changed based on editor review comments

* BAEL-6830 example changed based on editor review comments
This commit is contained in:
Shahul Basha 2023-09-10 11:45:10 -04:00 committed by GitHub
parent fa5eb584ed
commit f3069c6ebc
6 changed files with 104 additions and 91 deletions
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22
testing-modules/mockito-2/src/main/java/com/baeldung/constructor/PaymentProcessor.java Normal file
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package com.baeldung.constructor;
public class PaymentProcessor {
private final PaymentService paymentService;
public PaymentProcessor(PaymentService paymentService) {
this.paymentService = paymentService;
}
public PaymentProcessor() {
this.paymentService = new PaymentService();
}
public PaymentProcessor(String paymentMode) {
this.paymentService = new PaymentService(paymentMode);
}
public String processPayment(){
return paymentService.processPayment();
}
}

19
testing-modules/mockito-2/src/main/java/com/baeldung/constructor/PaymentService.java Normal file
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package com.baeldung.constructor;
public class PaymentService {
private final String paymentMode;
public PaymentService(String paymentMode) {
this.paymentMode = paymentMode;
}
public PaymentService() {
this.paymentMode = "Cash";
}
public String processPayment(){
// simulate processing payment and returns the payment mode
return this.paymentMode;
}
}

18
testing-modules/mockito-2/src/main/java/com/baeldung/constructor/User.java
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@ -1,18 +0,0 @@
package com.baeldung.constructor;
public class User {
private final UserService userService;
public User() {
this.userService = new UserService();
}
public User(String userName) {
this.userService = new UserService(userName);
}
public String getUserName(){
return userService.getUserName();
}
}

18
testing-modules/mockito-2/src/main/java/com/baeldung/constructor/UserService.java
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@ -1,18 +0,0 @@
package com.baeldung.constructor;
public class UserService {
private final String userName;
public UserService(String userName) {
this.userName = userName;
}
public UserService() {
this.userName = "Unknown";
}
public String getUserName(){
return this.userName;
}
}

63
testing-modules/mockito-2/src/test/java/com/baeldung/constructor/PaymentServiceUnitTest.java Normal file
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package com.baeldung.constructor;
import static org.mockito.Mockito.when;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.mockito.MockedConstruction;
import org.mockito.Mockito;
class PaymentServiceUnitTest {
@Test
void whenConstructorInvokedWithInitializer_ThenMockObjectShouldBeCreated(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class,(mock,context)-> when(mock.processPayment()).thenReturn("Credit"))){
PaymentProcessor paymentProcessor = new PaymentProcessor();
Assertions.assertEquals(1,mockPaymentService.constructed().size());
Assertions.assertEquals("Credit", paymentProcessor.processPayment());
}
}
@Test
void whenConstructorInvokedWithoutInitializer_ThenMockObjectShouldBeCreatedWithNullFields(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class)){
PaymentProcessor paymentProcessor = new PaymentProcessor();
Assertions.assertEquals(1,mockPaymentService.constructed().size());
Assertions.assertNull(paymentProcessor.processPayment());
}
}
@Test
void whenConstructorInvokedWithParameters_ThenMockObjectShouldBeCreated(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class,(mock, context) -> when(mock.processPayment()).thenReturn("Credit"))){
PaymentProcessor paymentProcessor = new PaymentProcessor("Debit");
Assertions.assertEquals(1,mockPaymentService.constructed().size());
Assertions.assertEquals("Credit", paymentProcessor.processPayment());
}
}
@Test
void whenMultipleConstructorsInvoked_ThenMultipleMockObjectsShouldBeCreated(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class)){
PaymentProcessor paymentProcessor = new PaymentProcessor();
PaymentProcessor secondPaymentProcessor = new PaymentProcessor();
PaymentProcessor thirdPaymentProcessor = new PaymentProcessor("Debit");
when(mockPaymentService.constructed().get(0).processPayment()).thenReturn("Credit");
when(mockPaymentService.constructed().get(1).processPayment()).thenReturn("Online Banking");
Assertions.assertEquals(3,mockPaymentService.constructed().size());
Assertions.assertEquals("Credit", paymentProcessor.processPayment());
Assertions.assertEquals("Online Banking", secondPaymentProcessor.processPayment());
Assertions.assertNull(thirdPaymentProcessor.processPayment());
}
}
@Test
void whenDependencyInjectionIsUsed_ThenMockObjectShouldBeCreated(){
PaymentService mockPaymentService = Mockito.mock(PaymentService.class);
PaymentProcessor paymentProcessor = new PaymentProcessor(mockPaymentService);
when(mockPaymentService.processPayment()).thenReturn("Online Banking");
Assertions.assertEquals("Online Banking", paymentProcessor.processPayment());
}
}

55
testing-modules/mockito-2/src/test/java/com/baeldung/constructor/UserServiceUnitTest.java
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@ -1,55 +0,0 @@
package com.baeldung.constructor;
import static org.mockito.Mockito.when;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.mockito.MockedConstruction;
import org.mockito.Mockito;
class UserServiceUnitTest {
@Test
void whenConstructorInvokedWithInitializer_ThenMockObjectShouldBeCreated(){
try(MockedConstruction<UserService> mockUserService = Mockito.mockConstruction(UserService.class,(mock,context)-> when(mock.getUserName()).thenReturn("John Doe"))){
User user = new User();
Assertions.assertEquals(1,mockUserService.constructed().size());
Assertions.assertEquals("John Doe",user.getUserName());
}
}
@Test
void whenConstructorInvokedWithoutInitializer_ThenMockObjectShouldBeCreatedWithNullFields(){
try(MockedConstruction<UserService> mockUserService = Mockito.mockConstruction(UserService.class)){
User user = new User();
Assertions.assertEquals(1,mockUserService.constructed().size());
Assertions.assertNull(user.getUserName());
}
}
@Test
void whenConstructorInvokedWithParameters_ThenMockObjectShouldBeCreated(){
try(MockedConstruction<UserService> mockUserService = Mockito.mockConstruction(UserService.class,(mock, context) -> when(mock.getUserName()).thenReturn("John Doe"))){
User user = new User("Mike");
Assertions.assertEquals(1,mockUserService.constructed().size());
Assertions.assertEquals("John Doe",user.getUserName());
}
}
@Test
void whenMultipleConstructorsInvoked_ThenMultipleMockObjectsShouldBeCreated(){
try(MockedConstruction<UserService> mockUserService = Mockito.mockConstruction(UserService.class)){
User user = new User();
User secondUser = new User();
User thirdUser = new User("Mike");
when(mockUserService.constructed().get(0).getUserName()).thenReturn("John Doe");
when(mockUserService.constructed().get(1).getUserName()).thenReturn("Steve Smith");
Assertions.assertEquals(3,mockUserService.constructed().size());
Assertions.assertEquals("John Doe",user.getUserName());
Assertions.assertEquals("Steve Smith",secondUser.getUserName());
Assertions.assertNull(thirdUser.getUserName());
}
}
}