/**
  * @dataProvider providerTestHasError
  * @covers       \Moaction\Jsonrpc\Common\Response::hasError
  */
 public function testHasError($error)
 {
     $response = new Response();
     if ($error) {
         $response->setError(new Error());
     }
     $this->assertEquals($error, $response->hasError());
 }