#ifndef ROOTHISTOPDFTESTER_H
#define ROOTHISTOPDFTESTER_H
#include "TH1.h"
#include "TFile.h"

namespace Pdf {

class RootHistoPdfTester
{
 public:
  RootHistoPdfTester( const char * fileName ) : _file( fileName, "RECREATE" ) {}
  ~RootHistoPdfTester() { _file.Close(); }
  template<class Generator>
  void test( const Generator& generator, 
	     const char * histoName, const char * histoDescr,
	     int bins, double xmin, double xmax, int n = 100000 )
  {
    TH1F histo( histoName, histoDescr, bins, xmin, xmax );
    typename Generator::arg0 x;
    for( int i = 0; i < n; i ++ )
    {
      generator.generate( x );
      histo.Fill( x );
    }
    histo.Write();
  }
private:
  TFile _file;
};

}

#endif