Add AbstractRequest::formatCurrency() method

Author: amacneil

src/Omnipay/Common/Message/AbstractRequest.php

@@ -172,12 +172,7 @@ public function getAmount()
                 );
             }
 
-            return number_format(
-                $amount,
-                $this->getCurrencyDecimalPlaces(),
-                '.',
-                ''
-            );
+            return $this->formatCurrency($amount);
         }
     }
 
@@ -222,6 +217,16 @@ private function getCurrencyDecimalFactor()
         return pow(10, $this->getCurrencyDecimalPlaces());
     }
 
+    public function formatCurrency($amount)
+    {
+        return number_format(
+            $amount,
+            $this->getCurrencyDecimalPlaces(),
+            '.',
+            ''
+        );
+    }
+
     public function getDescription()
     {
         return $this->getParameter('description');

tests/Omnipay/Common/Message/AbstractRequestTest.php

@@ -140,6 +140,17 @@ public function testCurrencyDecimals()
         $this->assertSame(0, $this->request->getCurrencyDecimalPlaces());
     }
 
+    public function testFormatCurrency()
+    {
+        $this->assertSame('1234.00', $this->request->formatCurrency(1234));
+    }
+
+    public function testFormatCurrencyNoDecimals()
+    {
+        $this->request->setCurrency('JPY');
+        $this->assertSame('1234', $this->request->formatCurrency(1234));
+    }
+
     public function testDescription()
     {
         $this->assertSame($this->request, $this->request->setDescription('Cool product'));