Added additional recipient validation check

Author: marickvantuil

src/Validator.php

@@ -67,6 +67,10 @@ private function validateRecipient(EmailComposer $composer)
 
         $recipients = (array) $composer->getData('recipient');
 
+        if (count($recipients) == 0) {
+            throw new InvalidArgumentException('No recipient specified');
+        }
+
         foreach ($recipients as $recipient) {
             if (! filter_var($recipient, FILTER_VALIDATE_EMAIL)) {
                 throw new InvalidArgumentException('E-mail address [' . $recipient . '] is invalid');

tests/ValidatorTest.php

@@ -30,6 +30,18 @@ public function a_recipient_is_required()
             ->send();
     }
 
+    /**
+     * @test
+     * @expectedException InvalidArgumentException
+     * @expectedExceptionMessage No recipient specified
+     */
+    public function a_recipient_cannot_be_empty()
+    {
+        Email::compose()
+            ->recipient([])
+            ->send();
+    }
+
     /**
      * @test
      * @expectedException InvalidArgumentException