cast returned value to integer (#168)

Author: nicolassing

src/Common/Message/AbstractRequest.php

@@ -383,7 +383,7 @@ public function getAmountInteger()
         $money = $this->getMoney();
 
         if ($money !== null) {
-            return $money->getAmount();
+            return (int) $money->getAmount();
         }
     }
 

tests/Omnipay/Common/Message/AbstractRequestTest.php

@@ -191,14 +191,14 @@ public function testGetAmountNoDecimalsRounding()
     public function testGetAmountInteger()
     {
         $this->assertSame($this->request, $this->request->setAmount('13.66'));
-        $this->assertSame('1366', $this->request->getAmountInteger());
+        $this->assertSame(1366, $this->request->getAmountInteger());
     }
 
     public function testGetAmountIntegerNoDecimals()
     {
         $this->assertSame($this->request, $this->request->setCurrency('JPY'));
         $this->assertSame($this->request, $this->request->setAmount('1366'));
-        $this->assertSame('1366', $this->request->getAmountInteger());
+        $this->assertSame(1366, $this->request->getAmountInteger());
     }
 
     /**