电子邮件发送集成测试

Question

请帮我写一个用于发送电子邮件的集成测试，即 inreal 发送电子邮件。

public interface MailSenderService {

void sendEmail(String to, String from, String subject, String body); }

邮件发送者类

@Service
public class MailSenderServiceImpl implements MailSenderService {
private static final Logger logger = LoggerFactory.getLogger(MailSenderServiceImpl.class);

@Autowired
private JavaMailSender javaMailSender;

@Autowired
Configuration freemarkerConfiguration;

private SimpleMailMessage composeMail(String to, String from, String subject, String body) {
    SimpleMailMessage message = new SimpleMailMessage();
    message.setFrom(from);
    message.setTo(to);
    message.setSubject(subject);
    message.setText(body);
    return message;
}

@Override
public void sendEmail(String to, String from, String subject, String body) {
    sendMessage(composeMail(to, from, subject, body));
}

@Async
private void sendMessage(SimpleMailMessage message) {
    Assert.notNull(javaMailSender, "Email Sender must not be null");
    javaMailSender.send(message);
}}

最后是一个集成测试，没有通过：

public class MailSenderServiceIT extends BaseServiceIntegrationTest {

@Autowired
private MailSenderService mailSenderService;

@Test
public void sendEmail() {
    mailSenderService.sendEmail("test1@gmail.com", "test2@gmail.com", "Test Subject",
            "Test Body");
    flushAndClear();
}

Answer 1

我们需要知道如何配置您的 JavaMailSender。如果您想在集成测试中发送电子邮件，则需要配置 JavaMailSender 以使用本地配置。以 localhost:5555 为例：

JavaMailSenderImpl javaMailSender = new JavaMailSenderImpl();
javaMailSender.setHost("localhost");
javaMailSender.setPort(5555);

然后，您可以在测试中直接使用库 subethasmtp 创建服务器 SMTP。我个人创建了一个 Junit 规则来做到这一点：

public class SMTPServerRule extends ExternalResource {

    private Wiser wiser;
    private String hostname;
    private int port;

    public SMTPServerRule() {
        this(25);
    }

    public SMTPServerRule(int port) {
        this("localhost", port);
    }

    public SMTPServerRule(String hostname, int port) {
        this.hostname = hostname;
        this.port = port;
    }


    @Override
    protected void before() throws Throwable {
        super.before();

        wiser = new Wiser(port);
        wiser.setHostname(hostname);
        wiser.start();
    }

    public List<WiserMessage> getMessages() {
        return wiser.getMessages();
    }

    @Override
    protected void after() {
        super.after();
        wiser.stop();
    }
}

所以，您可以在集成测试中执行类似的操作：

@Rule
public SMTPServerRule smtpServerRule = new SMTPServerRule("localhost", 5555);

@Test
public void sendEmail() {
    mailSenderService.sendEmail("test1@gmail.com", "test2@gmail.com", "Test Subject", "Test Body");
    flushAndClear();

    List<WiserMessage> messages smtpServerRule.getMessages();
}