Purl\Url::isAbsolute PHP Метод

    public function isAbsolute()
    {
        $this->initialize();
        return $this->scheme && $this->host;
    }

 public function testRelativeUrl()
 {
     // test all resource parts
     $url = new Url('/path1/path2?x=1&y=2#frag');
     $this->assertFalse($url->isAbsolute());
     $this->assertEquals('/path1/path2?x=1&y=2#frag', (string) $url);
     // test base path
     $url = new Url('/path1');
     $this->assertEquals('/path1', (string) $url);
     // test minimal path
     $url = new Url('/');
     $this->assertEquals('/', (string) $url);
     // test feature request
     $url = new Url('/events');
     $url->query->set('param1', 'value1');
     $this->assertEquals('/events?param1=value1', (string) $url);
 }