public function testFeatureDetection()
 {
     $ip2loc = new Rych_Ip2Location;
     $ip2loc->setDbFile(LIBRARY_ROOT . '/tests/_files/Rych/Ip2Location/DB1-DEMO.bin');
     $this->assertEquals(true, $ip2loc->hasFeature(Rych_Ip2Location::FEATURE_COUNTRY));
     $this->assertEquals(false, $ip2loc->hasFeature(Rych_Ip2Location::FEATURE_LATLON));
 }