// CandidateLayer_t.cpp

#include "CandidateLayer.h"
#include <iostream>
#include <string>
#include <cassert>
#include "trfutil/trfstream.h"
#include "trflayer/LayerTest.h"
#include "trffit/AddFitterTest.h"
#include "trfbase/PropStat.h"
#include "trfbase/PropDirectedTest.h"
#include "trfbase/HitTest.h"
#include "trffit/AddFitter.h"

using std::cout;
using std::cerr;
using std::endl;
using std::string;

namespace trf {
class HTrack;
}  // end namespace trf

using namespace trf;

//**********************************************************************

int main( ) {

  string component = "CandidateLayer";
  string ok_prefix = component + " (I): ";
  string error_prefix = component + " test (E): ";

  cout << ok_prefix
       << "-------- Testing component " + component
          + ". --------" << endl;

  // Make sure assert is enabled.
  bool assert_flag = false;
  assert ( ( assert_flag = true, assert_flag ) );
  if ( ! assert_flag ) {
    cerr << "Assert is disabled" << endl;
    return 1;
  }

  //********************************************************************

  cout << trf_format;
  cout << ok_prefix << "Create candidate layer." << endl;
  LayerTest layer(1.0);
  PropTest prop;
  AddFitterTest fit(0);
  CandidateLayer cnl(layer,prop,fit);
  cout << cnl << endl;
  assert( cnl.is_valid() );

  //********************************************************************

  cout << ok_prefix << "Test reference fetching." << endl;
  cout << cnl.get_layer() << endl;
  cout << cnl.get_propagator() << endl;
  cout << cnl.get_fitter() << endl;

  //********************************************************************

  cout << ok_prefix << "Create an empty candidate." << endl;
  CandidateLayer empty;
  cout << empty << endl;
  assert( ! empty.is_valid() );

  //********************************************************************

  cout << ok_prefix << "Check equality and inequality." << endl;
  LayerTest layer2(2.0);
  PropTest prop2;
  AddFitterTest fit2(0);
  CandidateLayer cnl1(layer,prop,fit);
  CandidateLayer cnl2(layer2,prop,fit);
  CandidateLayer cnl3(layer,prop2,fit);
  CandidateLayer cnl4(layer,prop,fit2);
  assert( empty != cnl );
  assert( ! (empty == cnl ) );
  assert( cnl != empty );
  assert( cnl != cnl2 );
  assert( cnl3 != cnl );
  assert( ! ( cnl == cnl4 ) );
  assert( cnl == cnl1 );
  assert( cnl1 == cnl );
  assert( ! ( cnl != cnl1 ) );

  //********************************************************************

  cout << ok_prefix << "Check ordering." << endl;
  assert( ! ( cnl < cnl1 ) );
  assert( ! ( cnl1 < cnl ) );
  assert( cnl < cnl2 || cnl2 < cnl );

  //********************************************************************

  cout << ok_prefix
       << "------------- All tests passed. -------------" << endl;
  return 0;

  //********************************************************************

}