Fixing installments of checkout preferences

Author: caiogaspar

src/Resource/Orders.php

@@ -118,6 +118,7 @@ protected function initialize()
         $this->data->receivers = [];
         $this->data->checkoutPreferences = new stdClass();
         $this->data->checkoutPreferences->redirectUrls = new stdClass();
+        $this->data->checkoutPreferences->installments = [];
     }
 
     /**
@@ -609,12 +610,14 @@ public function setUrlFailure($urlFailure = '')
      *
      * @return $this
      */
-    public function setInstallmentCheckoutPreferences($quantity, $discountValue = 0, $additionalValue = 0)
+    public function addInstallmentCheckoutPreferences($quantity, $discountValue = 0, $additionalValue = 0)
     {
-        $this->data->checkoutPreferences->installments = new stdClass();
-        $this->data->checkoutPreferences->installments->quantity = $quantity;
-        $this->data->checkoutPreferences->installments->discount = $discountValue;
-        $this->data->checkoutPreferences->installments->addition = $additionalValue;
+        $installmentCheckoutPreferences = new stdClass();
+        $installmentCheckoutPreferences->quantity = $quantity;
+        $installmentCheckoutPreferences->discount = $discountValue;
+        $installmentCheckoutPreferences->addition = $additionalValue;
+        
+        $this->data->checkoutPreferences->installments[] = $installmentCheckoutPreferences;
 
         return $this;
     }

tests/Resource/OrdersTest.php

@@ -120,19 +120,16 @@ public function testCreateOrderWithInstallmentPreferences()
         $quantity = [1, 6];
         $discount = 0;
         $additional = 100;
-        $order = $this->createOrder()->setInstallmentCheckoutPreferences($quantity, $discount, $additional);
+        $order = $this->createOrder()->addInstallmentCheckoutPreferences($quantity, $discount, $additional);
         $returned_order = $this->executeOrder($order);
-
         $this->assertNotEmpty($returned_order->getId());
-        $this->assertEquals([1, 6], $returned_order->getCheckoutPreferences()->installments->quantity);
+        $this->assertEquals([1, 6], $returned_order->getCheckoutPreferences()->installments[0]->quantity);
     }
 
     public function testCreateOrderAddingReceiverNoAmount()
     {
         $order = $this->createOrder()->addReceiver('MPA-7ED9D2D0BC81', 'PRIMARY');
-        $returned_order = $this->executeOrder($order);
-        $this->assertNotEmpty($returned_order->getId());
-        $receivers = $returned_order->getReceiverIterator();
+        $receivers = $order->getReceiverIterator();
         $this->assertEquals('MPA-7ED9D2D0BC81', $receivers[0]->moipAccount->id);
     }