Added transport class for MailOutput.

lib/Frs/Output/MailOutput.php

@@ -98,7 +98,10 @@ class MailOutput extends GenericOutput
         $this->setHeadersFromString($headers);
         $recipients = implode(', ', $this->recipients);
         // TODO: Check if any recipients in the first place
-        $mail_sent  = mail($recipients, $this->subject, $mailbody, $this->getHeaders());
-        return $mail_sent;
+        $this->transport->setRecipients($recipients);
+        $this->transport->setSubject($this->subject);
+        $this->transport->setHeaders($this->getHeaders());
+        $this->transport->setContent($mailbody);
+        return $this->transport->send();
     }
 }

lib/Frs/Output/Transport/MailTransport.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Frs\Output\Transport;
+
+class MailTransport implements TransportInterface
+{
+    private $recipients;
+    private $subject;
+    private $headers;
+    private $content;
+
+    public function setContent($content)
+    {
+        $this->content = $content;
+    }
+
+    public function setRecipients($recipients)
+    {
+        $this->recipients = $recipients;
+    }
+
+    public function setSubject($subject)
+    {
+        $this->subject = $subject;
+    }
+
+    public function setHeaders($headers)
+    {
+        $this->headers = $headers;
+    }
+
+    public function transmit()
+    {
+        return mail($this->recipients, $this->subject, $this->content, $this->headers);
+    }
+}

lib/Frs/Output/Transport/StdoutTransport.php

@@ -14,5 +14,6 @@ class StdoutTransport implements TransportInterface
     public function transmit()
     {
         echo $this->content;
+        return true;
     }
 }