Create EmailServiceTest.java

src/test/java/stirling/software/SPDF/config/security/mail/EmailServiceTest.java

@@ -0,0 +1,64 @@
+package stirling.software.SPDF.config.security.mail;
+
+import static org.mockito.Mockito.*;
+
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeMessage;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.mail.javamail.MimeMessageHelper;
+import org.springframework.web.multipart.MultipartFile;
+import stirling.software.SPDF.model.ApplicationProperties;
+import stirling.software.SPDF.model.api.Email;
+
+@ExtendWith(MockitoExtension.class)
+public class EmailServiceTest {
+
+    @Mock
+    private JavaMailSender mailSender;
+
+    @Mock
+    private ApplicationProperties applicationProperties;
+
+    @Mock
+    private ApplicationProperties.Mail mailProperties;
+
+    @Mock
+    private MultipartFile fileInput;
+
+    @InjectMocks
+    private EmailService emailService;
+
+    @Test
+    void testSendEmailWithAttachment() throws MessagingException {
+        // Mock the values returned by ApplicationProperties
+        when(applicationProperties.getMail()).thenReturn(mailProperties);
+        when(mailProperties.getFrom()).thenReturn("no-reply@stirling-software.com");
+
+        // Create a mock Email object
+        Email email = new Email();
+        email.setTo("test@example.com");
+        email.setSubject("Test Email");
+        email.setBody("This is a test email.");
+        email.setFileInput(fileInput);
+
+        // Mock MultipartFile behavior
+        when(fileInput.getOriginalFilename()).thenReturn("testFile.txt");
+
+        // Mock MimeMessage
+        MimeMessage mimeMessage = mock(MimeMessage.class);
+
+        // Configure mailSender to return the mocked MimeMessage
+        when(mailSender.createMimeMessage()).thenReturn(mimeMessage);
+
+        // Call the service method
+        emailService.sendEmailWithAttachment(email);
+
+        // Verify that the email was sent using mailSender
+        verify(mailSender).send(mimeMessage);
+    }
+}