Junit 中的自动装配

Question

我正在尝试从上下文中自动装配两个对象，但似乎在 Configuraiton 和 JavaMailSender 上都出现 Nullpointer 异常，我可能会遗漏什么。如果我只是自动装配 EmailService，它可以正常工作，但是我需要将模拟对象传递给构造函数，这就是为什么我要按照现在的方式进行。如果我用 @Autowire 注释我的 EmailService 对象，它会起作用。

@SpringBootTest

    public class EmailServiceTest {

        @Autowired
        private Configuration configuration;

        @Autowired
        private JavaMailSender javaMailSender;

        private AuthUser authUser = Mockito.mock(AuthUser.class);

        private EmailService emailService = new EmailService(javaMailSender,configuration,authUser);


 @Test
public void testSendAttachment() throws IOException {
    List<Attachment> attachments = new ArrayList<>();
    attachments.add(new Attachment(new Archive(TestData.getDocs(), "test").getZipArchive(), "documents.zip"));
    attachments.add(new Attachment(new Archive(TestData.getDocs(), "test").getZipArchive(), "documents2.zip"));
    Email mail = new Email("a",
            "b",
            "Requested archive attached",
            "Thank you for using our services, please refer to the attached archive", attachments);
    emailService.sendMailWithAttachment(mail);

}

  @Test
public void shouldSendConfirmationEmail(){
    Mockito.when(authUser.getUsername()).thenReturn("email@email.com");
    emailService.sendConfirmationToCooperateEmail();
}

Answer 1

Spring 创建 EmailServiceTest.java 属性 Configuration 和 EmailService 默认为 null 当我们在属性初始化 EmailService 时电子邮件服务立即获取空值，然后才 Spring 将值注入配置和 EmailSender。

 @Autowired
private Configuration configuration;

@Autowired
private JavaMailSender javaMailSender;

private AuthUser authUser = Mockito.mock(AuthUser.class);


@Test
public void testSendAttachment() throws IOException {
    EmailService emailService = new EmailService(javaMailSender, configuration, authUser);

Junit 中的自动装配

Autowiring in Junit

java

junit

autowired