Rename default packages for php client (#315)

* Rename default packages for php client

* Generate php client (OAS3)

* Rename namespace for tests

* Delete unnecessary 'use'

* Rename method/variable

* Update php client (OAS3)

* Generate php client (OAS2)

* Rename namespace for tests

* Delete unused files

* Fix tests

samples/client/petstore/php/OpenAPIToolsClient-php/tests/RequestTest.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace OpenAPITools\Client;
+
+use OpenAPITools\Client\Api\FakeApi;
+
+require_once __DIR__ . '/FakeHttpClient.php';
+
+class RequestTest extends \PHPUnit_Framework_TestCase
+{
+
+    /** @var FakeApi */
+    private $api;
+    /** @var  FakeHttpClient */
+    private $fakeClient;
+
+    public function setUp()
+    {
+        $this->fakeClient = new FakeHttpClient();
+        $this->api = new Api\FakeApi($this->fakeClient);
+    }
+
+    public function testFormDataEncodingToJson()
+    {
+        $this->api->testJsonFormData('value', 'value2');
+
+        $request = $this->fakeClient->getLastRequest();
+        $contentType = $request->getHeader('Content-Type');
+        $this->assertEquals(['application/x-www-form-urlencoded'], $contentType);
+
+        $requestContent = $request->getBody()->getContents();
+
+        // JSON serialization of form data is not supported
+        $this->assertEquals('param=value&param2=value2', $requestContent);
+    }
+}