// RootFinder_t.cpp

#include "RootFinder.h"

#include <cassert>
#include <string>
#include <iostream>

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

// Test interface -- this is not a true root finder.
class RootFinderTest : public RootFinder {
public:
  RootFinderTest() { };
  ~RootFinderTest() { };
  StatusDouble evaluate(double x) const { return StatusDouble(1,x); };
  StatusDouble solve(double x1, double x2) const 
    { return StatusDouble(2,x1*x2); };
};

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

int main( ) {

  string component = "RootFinder";
  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 << ok_prefix << "Test interface." << endl;
  const RootFinderTest rfind;
  StatusDouble eval = rfind.evaluate(3.2);
  StatusDouble soln = rfind.solve(2.34,5.67);
  assert( eval.status() == 1 );
  assert( eval.value() == 3.2 );
  assert( soln.status() == 2 );
  assert( soln.value() == 2.34*5.67 );
  
  //********************************************************************

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

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

}