Add PayPal Express line items

Author: amacneil

src/Omnipay/PayPal/Message/ExpressAuthorizeRequest.php

@@ -50,6 +50,15 @@ public function getData()
             $data['EMAIL'] = $card->getEmail();
         }
 
+        $items = $this->getItems();
+        if ($items) {
+            foreach ($items as $n => $item) {
+                $data["PAYMENTREQUEST_0_NAME$n"] = $item->getName();
+                $data["PAYMENTREQUEST_0_QTY$n"] = $item->getQuantity();
+                $data["PAYMENTREQUEST_0_AMT$n"] = $item->getPrice();
+            }
+        }
+
         return $data;
     }
 

tests/Omnipay/PayPal/Message/ExpressAuthorizeRequestTest.php

@@ -120,6 +120,23 @@ public function testGetDataWithCard()
         $this->assertEquals($expected, $this->request->getData());
     }
 
+    public function testGetDataWithItems()
+    {
+        $this->request->setItems(array(
+            array('name' => 'Floppy Disk', 'quantity' => 2, 'price' => '10.00'),
+            array('name' => 'CD-ROM', 'quantity' => 1, 'price' => '40.00'),
+        ));
+
+        $data = $this->request->getData();
+        $this->assertSame('Floppy Disk', $data['PAYMENTREQUEST_0_NAME0']);
+        $this->assertSame(2, $data['PAYMENTREQUEST_0_QTY0']);
+        $this->assertSame('10.00', $data['PAYMENTREQUEST_0_AMT0']);
+
+        $this->assertSame('CD-ROM', $data['PAYMENTREQUEST_0_NAME1']);
+        $this->assertSame(1, $data['PAYMENTREQUEST_0_QTY1']);
+        $this->assertSame('40.00', $data['PAYMENTREQUEST_0_AMT1']);
+    }
+
     public function testHeaderImageUrl()
     {
         $this->assertSame($this->request, $this->request->setHeaderImageUrl('https://www.example.com/header.jpg'));