JAVA-12032 Move Mockito ebook articles code to common module - mockito-simple- Delete mockito-3 since it had only 1 article which was moved to mockito-simple
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package com.baeldung.junit5.mockito;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.fail;
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import static org.mockito.ArgumentMatchers.any;
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import static org.mockito.Mockito.lenient;
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import static org.mockito.Mockito.never;
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import static org.mockito.Mockito.verify;
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import static org.mockito.Mockito.when;
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import org.junit.jupiter.api.Assertions;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.Mock;
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import org.mockito.Mockito;
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import org.mockito.invocation.InvocationOnMock;
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import org.mockito.junit.jupiter.MockitoExtension;
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import org.mockito.stubbing.Answer;
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import com.baeldung.junit5.mockito.repository.MailClient;
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import com.baeldung.junit5.mockito.repository.SettingRepository;
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import com.baeldung.junit5.mockito.repository.UserRepository;
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import com.baeldung.junit5.mockito.service.DefaultUserService;
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import com.baeldung.junit5.mockito.service.Errors;
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import com.baeldung.junit5.mockito.service.UserService;
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@ExtendWith(MockitoExtension.class)
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public class UserServiceUnitTest {
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UserService userService;
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SettingRepository settingRepository;
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@Mock UserRepository userRepository;
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@Mock MailClient mailClient;
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User user;
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@BeforeEach
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void init(@Mock SettingRepository settingRepository) {
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userService = new DefaultUserService(userRepository, settingRepository, mailClient);
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lenient().when(settingRepository.getUserMinAge()).thenReturn(10);
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when(settingRepository.getUserNameMinLength()).thenReturn(4);
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lenient().when(userRepository.isUsernameAlreadyExists(any(String.class))).thenReturn(false);
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this.settingRepository = settingRepository;
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}
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@Test
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void givenValidUser_whenSaveUser_thenSucceed(@Mock MailClient mailClient) {
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// Given
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user = new User("Jerry", 12);
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when(userRepository.insert(any(User.class))).then(new Answer<User>() {
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int sequence = 1;
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@Override
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public User answer(InvocationOnMock invocation) throws Throwable {
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User user = (User) invocation.getArgument(0);
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user.setId(sequence++);
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return user;
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}
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});
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userService = new DefaultUserService(userRepository, settingRepository, mailClient);
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// When
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User insertedUser = userService.register(user);
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// Then
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verify(userRepository).insert(user);
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Assertions.assertNotNull(user.getId());
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verify(mailClient).sendUserRegistrationMail(insertedUser);
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}
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@Test
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void givenShortName_whenSaveUser_thenGiveShortUsernameError() {
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// Given
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user = new User("tom", 12);
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// When
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try {
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userService.register(user);
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fail("Should give an error");
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} catch(Exception ex) {
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assertEquals(ex.getMessage(), Errors.USER_NAME_SHORT);
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}
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// Then
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verify(userRepository, never()).insert(user);
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}
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@Test
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void givenSmallAge_whenSaveUser_thenGiveYoungUserError() {
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// Given
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user = new User("jerry", 3);
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// When
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try {
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userService.register(user);
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fail("Should give an error");
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} catch(Exception ex) {
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assertEquals(ex.getMessage(), Errors.USER_AGE_YOUNG);
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}
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// Then
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verify(userRepository, never()).insert(user);
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}
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@Test
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void givenUserWithExistingName_whenSaveUser_thenGiveUsernameAlreadyExistsError() {
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// Given
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user = new User("jerry", 12);
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Mockito.reset(userRepository);
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when(userRepository.isUsernameAlreadyExists(any(String.class))).thenReturn(true);
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// When
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try {
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userService.register(user);
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fail("Should give an error");
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} catch(Exception ex) {
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assertEquals(ex.getMessage(), Errors.USER_NAME_DUPLICATE);
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}
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// Then
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verify(userRepository, never()).insert(user);
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}
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}
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