public function testUrl()
{
$builder = new RequestBuilder(['domain' => 'www.domain.com', 'basePath' => '/api', 'method' => 'get']);
$this->assertEquals('', $builder->getUrl());
$builder->path1();
$this->assertEquals('path1', $builder->getUrl());
$builder->path2(3);
$this->assertEquals('path1/path2/3', $builder->getUrl());
}