ksl*_*u25 4 java mime jakarta-mail mockito
我想实际验证消息上设置的字段，例如正文、主题、发件人等\xe2\x80\xa6 我\xe2\x80\x99也尝试过执行参数捕获器，但\xe2\x80\x99不起作用当我调试代码时，消息在获取 javaMailSender.send(message) 行时始终显示空字段。
\n\n模拟 MIMEMessage 是否有最佳实践？
\n\n//EmailService.java\n\nimport lombok.extern.slf4j.Slf4j;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.mail.javamail.JavaMailSender;\nimport org.springframework.mail.javamail.MimeMessageHelper;\n\nimport javax.mail.MessagingException;\nimport javax.mail.internet.MimeMessage;\n\n@Slf4j\npublic class EmailService {\n private JavaMailSender javaMailSender;\n\n @Autowired\n public EmailService(JavaMailSender javaMailSender) {\n this.javaMailSender = javaMailSender;\n }\n\n\n public void sendEmail() {\n MimeMessage message = javaMailSender.createMimeMessage();\n String body = "<html>\\n" +\n "<p> This the body </p>\\n" +\n "<br>\\n";\n try {\n MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(message, true);\n mimeMessageHelper.setSubject("subject");\n mimeMessageHelper.setTo("stack@overflow.com");\n mimeMessageHelper.setFrom("overflow@stack.com");\n mimeMessageHelper.setText(body, true);\n\n javaMailSender.send(message);\n\n } catch (MessagingException e) {\n log.error("error");\n }`enter code here`\n }\n}\n下面是测试
\n\n//EmailServiceTest.java\n\nimport org.junit.Before;\nimport org.junit.Test;\nimport org.mockito.ArgumentCaptor;\nimport org.mockito.Mock;\nimport org.springframework.mail.javamail.JavaMailSender;\n\nimport javax.mail.MessagingException;\nimport javax.mail.internet.MimeMessage;\nimport java.io.IOException;\n\nimport static org.junit.Assert.assertEquals;\nimport static org.mockito.Mockito.*;\nimport static org.mockito.MockitoAnnotations.initMocks;\n\n\npublic class EmailServiceTest {\n private EmailService emailService;\n\n @Mock\n private JavaMailSender javaMailSender;\n\n @Mock\n private MimeMessage message;\n\n @Before\n public void setUp() throws IOException {\n initMocks(this);\n\n emailService = new EmailService(javaMailSender);\n }\n\n @Test\n public void sendEmail_sendsEmailWithCorrectContent() throws MessagingException {\n ArgumentCaptor<MimeMessage> mimeMessageArgumentCaptor = ArgumentCaptor.forClass(MimeMessage.class);\n when(javaMailSender.createMimeMessage()).thenReturn(message);\n\n doNothing().when(javaMailSender).send(message);\n\n emailService.sendEmail();\n\n verify(javaMailSender, times(1)).send((mimeMessageArgumentCaptor.capture()));\n assertEquals("subject", mimeMessageArgumentCaptor.getValue().getSubject());\n }\n\n}\n