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/ExceptionTest.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace OpenAPITools\Client;
+
+use GuzzleHttp\Client;
+
+class ExceptionTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \OpenAPITools\Client\ApiException
+     * @expectedExceptionCode 404
+     * @expectedExceptionMessage http://petstore.swagger.io/INVALID_URL/store/inventory
+     */
+    public function testNotFound()
+    {
+        $config = new Configuration();
+        $config->setHost('http://petstore.swagger.io/INVALID_URL');
+
+        $api = new Api\StoreApi(
+            new Client(),
+            $config
+        );
+        $api->getInventory();
+    }
+
+    /**
+     * @expectedException \OpenAPITools\Client\ApiException
+     * @expectedExceptionMessage Could not resolve host
+     */
+    public function testWrongHost()
+    {
+        $config = new Configuration();
+        $config->setHost('http://wrong_host.zxc');
+
+        $api = new Api\StoreApi(
+            new Client(),
+            $config
+        );
+        $api->getInventory();
+    }
+}