add test

Author: moorl

src/Builders/Document/CustomerCreditTransferBuilder.php

@@ -115,7 +115,13 @@ public function addBankTransaction(
         $tx = $this->createCreditTransferTransactionElement($amount, null, $endToEndId);
         $this->addAmountElement($tx, $amount, $currency);
         $this->addCreditor(
-            $tx, null, $creditorIBAN, $creditorName, $postalAddress, $purposeText, $purposeCode
+            $tx,
+            null,
+            $creditorIBAN,
+            $creditorName,
+            $postalAddress,
+            $purposeText,
+            $purposeCode
         );
 
         return $this;