/**
  * Test creating a \Google_Client from JSON service file
  */
 public function testCreateClientFromJSON()
 {
     $obj_client = \GDS\Gateway\GoogleAPIClient::createClientFromJson(dirname(__FILE__) . '/base/service.json');
     $this->assertInstanceOf('\\Google_Client', $obj_client);
     $this->assertInstanceOf('\\Google_Auth_OAuth2', $obj_client->getAuth());
 }