Renaming Namespaces and Organizing Classes

- Updated OpenId classes to be in API namespace
- Updated PP Naming Convention to PayPal Naming Convention
- FormatConverter Class got its own namespace
- Handlers are grouped in Handler namespace
- Samples and Tests Updated Accordingly

tests/PayPal/Test/Api/OpenIdTokeninfoTest.php

@@ -0,0 +1,78 @@
+<?php
+namespace PayPal\Test\Api;
+
+use PayPal\Api\OpenIdTokeninfo;
+
+/**
+ * Test class for OpenIdTokeninfo.
+ *
+ */
+class OpenIdTokeninfoTest extends \PHPUnit_Framework_TestCase
+{
+
+    /** @var  OpenIdTokeninfo */
+    public $token;
+
+    /**
+     * Sets up the fixture, for example, opens a network connection.
+     * This method is called before a test is executed.
+     */
+    protected function setUp()
+    {
+        $this->token = new OpenIdTokeninfo();
+        $this->token->setAccessToken("Access token")
+            ->setExpiresIn(900)
+            ->setRefreshToken("Refresh token")
+            ->setIdToken("id token")
+            ->setScope("openid address")
+            ->setTokenType("Bearer");
+    }
+
+    /**
+     * Tears down the fixture, for example, closes a network connection.
+     * This method is called after a test is executed.
+     */
+    protected function tearDown()
+    {
+    }
+
+    /**
+     * @test
+     */
+    public function testSerializationDeserialization()
+    {
+        $tokenCopy = new OpenIdTokeninfo();
+        $tokenCopy->fromJson($this->token->toJson());
+
+        $this->assertEquals($this->token, $tokenCopy);
+    }
+
+    /**
+     * @t1est
+     * TODO: Fix Test. This test is disabled
+     */
+    public function t1estOperations()
+    {
+
+        $clientId = 'AQkquBDf1zctJOWGKWUEtKXm6qVhueUEMvXO_-MCI4DQQ4-LWvkDLIN2fGsd';
+        $clientSecret = 'ELtVxAjhT7cJimnz5-Nsx9k2reTKSVfErNQF-CmrwJgxRtylkGTKlU4RvrX';
+
+        $params = array(
+            'code' => '<FILLME>',
+            'redirect_uri' => 'https://devtools-paypal.com/',
+            'client_id' => $clientId,
+            'client_secret' => $clientSecret
+        );
+        $accessToken = OpenIdTokeninfo::createFromAuthorizationCode($params);
+        $this->assertNotNull($accessToken);
+
+        $params = array(
+            'refresh_token' => $accessToken->getRefreshToken(),
+            'client_id' => $clientId,
+            'client_secret' => $clientSecret
+        );
+        $accessToken = $accessToken->createFromRefreshToken($params);
+        $this->assertNotNull($accessToken);
+    }
+
+}