setMessageId($messageId); $this->assertSame($messageId, $mail->getMessageId()); // Test status property $status = 'sent'; $mail->setStatus($status); $this->assertSame($status, $mail->getStatus()); // Test dest property $dest = 'recipient@example.com'; $mail->setDest($dest); $this->assertSame($dest, $mail->getDest()); // Test subject property $subject = 'Test Subject'; $mail->setSubject($subject); $this->assertSame($subject, $mail->getSubject()); // Test content property $content = 'This is the test email content.'; $mail->setContent($content); $this->assertSame($content, $mail->getContent()); // Test getId() - should be null initially as it's auto-generated by the database $this->assertNull($mail->getId()); } }