Sanitize Input for Price Variables

- Updated the model to automatically format the price
- Updated the samples to reflect the new changes
- More Unit Tests

tests/PayPal/Test/Common/FormatConverterTest.php

@@ -0,0 +1,91 @@
+<?php
+namespace PayPal\Test\Common;
+
+use PayPal\Api\Amount;
+use PayPal\Api\Currency;
+use PayPal\Api\Details;
+use PayPal\Api\Item;
+use PayPal\Common\FormatConverter;
+use PayPal\Common\PPModel;
+use PayPal\Test\Validation\NumericValidatorTest;
+
+class FormatConverterTest extends \PHPUnit_Framework_TestCase
+{
+
+    public static function classMethodListProvider(){
+        return array(
+            array(new Item(), 'Price'),
+            array(new Item(), 'Tax'),
+            array(new Amount(), 'Total'),
+            array(new Currency(), 'Value'),
+            array(new Details(), 'Shipping'),
+            array(new Details(), 'SubTotal'),
+            array(new Details(), 'Tax'),
+            array(new Details(), 'Fee'),
+            array(new Details(), 'ShippingDiscount'),
+            array(new Details(), 'Insurance'),
+            array(new Details(), 'HandlingFee'),
+            array(new Details(), 'GiftWrap'),
+        );
+    }
+
+    public static function apiModelSettersProvider()
+    {
+        $provider = array();
+        foreach (NumericValidatorTest::positiveProvider() as $value) {
+            foreach (self::classMethodListProvider() as $method) {
+                $provider[] = array_merge($method, array($value));
+            }
+        }
+        return $provider;
+    }
+
+    public static function apiModelSettersInvalidProvider()
+    {
+        $provider = array();
+        foreach (NumericValidatorTest::invalidProvider() as $value) {
+            foreach (self::classMethodListProvider() as $method) {
+                $provider[] = array_merge($method, array($value));
+            }
+        }
+        return $provider;
+    }
+
+    /**
+     *
+     * @dataProvider \PayPal\Test\Validation\NumericValidatorTest::positiveProvider
+     */
+    public function testFormatToTwoDecimalPlaces($input, $expected)
+    {
+        $result = FormatConverter::formatToTwoDecimalPlaces($input);
+        $this->assertEquals($expected, $result);
+
+    }
+
+    /**
+     * @dataProvider apiModelSettersProvider
+     *
+     * @param PPModel $class Class Object
+     * @param string $method Method Name where the format is being applied
+     * @param array $values array of ['input', 'expectedResponse'] is provided
+     */
+    public function testSettersOfKnownApiModel($class, $method, $values)
+    {
+        $obj = new $class();
+        $setter = "set" . $method;
+        $getter = "get" . $method;
+        $result = $obj->$setter($values[0]);
+        $this->assertEquals($values[1], $result->$getter());
+    }
+
+    /**
+     * @dataProvider apiModelSettersInvalidProvider
+     * @expectedException \InvalidArgumentException
+     */
+    public function testSettersOfKnownApiModelInvalid($class, $methodName, $values)
+    {
+        $obj = new $class();
+        $setter = "set" . $methodName;
+        $obj->$setter($values[0]);
+    }
+}