Updated Invoicing APIs

- Updated Model objects.
- Updated Samples.
- Updated Tests.

tests/PayPal/Test/Api/ParticipantTest.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace PayPal\Test\Api;
+
+use PayPal\Common\PayPalModel;
+use PayPal\Api\Participant;
+
+/**
+ * Class Participant
+ *
+ * @package PayPal\Test\Api
+ */
+class ParticipantTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * Gets Json String of Object Participant
+     * @return string
+     */
+    public static function getJson()
+    {
+        return '{"email":"TestSample","first_name":"TestSample","last_name":"TestSample","business_name":"TestSample","phone":' .PhoneTest::getJson() . ',"fax":' .PhoneTest::getJson() . ',"website":"TestSample","additional_info":"TestSample","address":' .AddressTest::getJson() . '}';
+    }
+
+    /**
+     * Gets Object Instance with Json data filled in
+     * @return Participant
+     */
+    public static function getObject()
+    {
+        return new Participant(self::getJson());
+    }
+
+
+    /**
+     * Tests for Serialization and Deserialization Issues
+     * @return Participant
+     */
+    public function testSerializationDeserialization()
+    {
+        $obj = new Participant(self::getJson());
+        $this->assertNotNull($obj);
+        $this->assertNotNull($obj->getEmail());
+        $this->assertNotNull($obj->getFirstName());
+        $this->assertNotNull($obj->getLastName());
+        $this->assertNotNull($obj->getBusinessName());
+        $this->assertNotNull($obj->getPhone());
+        $this->assertNotNull($obj->getFax());
+        $this->assertNotNull($obj->getWebsite());
+        $this->assertNotNull($obj->getAdditionalInfo());
+        $this->assertNotNull($obj->getAddress());
+        $this->assertEquals(self::getJson(), $obj->toJson());
+        return $obj;
+    }
+
+    /**
+     * @depends testSerializationDeserialization
+     * @param Participant $obj
+     */
+    public function testGetters($obj)
+    {
+        $this->assertEquals($obj->getEmail(), "TestSample");
+        $this->assertEquals($obj->getFirstName(), "TestSample");
+        $this->assertEquals($obj->getLastName(), "TestSample");
+        $this->assertEquals($obj->getBusinessName(), "TestSample");
+        $this->assertEquals($obj->getPhone(), PhoneTest::getObject());
+        $this->assertEquals($obj->getFax(), PhoneTest::getObject());
+        $this->assertEquals($obj->getWebsite(), "TestSample");
+        $this->assertEquals($obj->getAdditionalInfo(), "TestSample");
+        $this->assertEquals($obj->getAddress(), AddressTest::getObject());
+    }
+
+
+}